Tag Archives: cable entry box (CEB)

2015/07/06 (M) Arrested

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Our morning started with coffee, once we got up, and then granola for breakfast.  We are both in better health, generally, than we were in our 30s, 40s, and early 50s, but having Madeline here requires a different kind of constant energy and attention and we are somewhat tired by the time her parents take her home.  It’s a good tired, of course, but we were still tired this morning and slept in for a while.

I had hoped to get back to work on the bus today but the afternoon highs were forecast for the mid-80’s which would make for less than comfortable working conditions.  The forecast for the rest of the week was for highs in the 70’s so I decided to wait another day.  I really needed to get back to work on the bus but I also had other things to take care of that seemed at least as pressing.

At the top of my list was the SLAARC website.  Scott Neader had successfully copied the SLAARC WordPress website from GoDaddy.com to QTH.com and changed the domain pointers to point to the QTH servers.  He needed me to check that everything was working correctly.  He was also preparing to transfer the domain name registration and needed my involvement for that process.

Part of our home ham radio shack with the new Yaesu FTM-400 2m/70cm mobile radio shown lower left.

Part of our home ham radio shack with the new Yaesu FTM-400 2m/70cm mobile radio shown lower left.

Continuing with the ham radio theme, I needed to resolve how I was going to mount the new Diamond X-300NA 2m/70cm antenna and possibly remount the outside omnidirectional antenna for the cellular booster system.  That meant doing some minor engineering and possibly ordering parts.  I was also preoccupied with the fact that I was unable to participate in the SLAARC info net last night, apparently due to some malfunction in our ham radio system, and it was going to bug me until I figured it out.

Last, but not least, was the fact that I was now one month behind on uploading posts to our blog.  The farther behind I get the more of a chore it is to get caught up.  Like cleaning up my e-mail inboxes, which I also need to do, it finally becomes “the” thing I “have” to take care of before I can concentrate on any other work.  I hate it when that happens, but it is a recurring problem and I have no one to blame except myself.

I often seem to spend the first part of each morning finishing up my blog post (draft) for the previous day and outlining the one for the current day or making notes for future days.  It’s my way of reflecting on what I have done and thinking ahead to what I need/want to do next.  By the time I actually got to work this morning it was after 10 AM and Keith showed up to cut the grass.  It did not rain this past week and he was finally able to cut the grass at the west end of the property, which is low and often wet.

Before going to my office I checked the rebate paperwork which Linda had assembled for the new Yaesu ham radio and got it ready to mail.  I also started filling out the prescription form to send in to Catamaran Home Delivery when I realized the doctor had written the Rx for 30 days instead of 90.  I called the clinic and they said it would (probably) be OK to have Linda bring it to her appointment tomorrow and have the doctor rewrite it.

Our coaxial cable adapter kit.

Our coaxial cable adapter kit.

When I finally got to my office I looked at the SLAARC WordPress website on my computer to make sure everything was working.  The only thing that was not working was an online tool for logging check-ins for the Sunday evening info net.  I e-mailed Scott about that and then logged in as an administrator and updated several plugins.  I logged in to the FMCA-GLCC website and updated it and then did the same for our personal website.  I then created a support ticket at iPower.com regarding the broken FMCA Freethinkers website.  I dealt with SLAARC related e-mails throughout the day.

I spent the rest of the morning editing blog posts for the second half of June and early July and then started selecting and processing photos to use with blog posts, and processed those further.  By the time I quit working I had photos ready for everything except the three days of the ARRL Field Day event.

It was a nice day, if a bit warm, and we had the house opened up including the basement doorwall.  Other than a short break for lunch by 2 PM I had sat long enough and decided to setup the new Diamond X-300 2m/70cm antenna on a temporary pole.  I rummaged around the garage and found the four section pole I had used at the old house.  The pieces were buried under a pile of GLCC related PVC flag pole sections but I was able to slide them out.  I cleaned up the swaged connections and used a light coating of anti-seize compound before assembling them.  I stood it upright on the ground at the NE corner of the deck and zip tied it to the corner post at three points.  I then set up the 7-foot step ladder on the deck and removed the upper two sections.

The new Diamond X-300NA VHF/UHF ham radio antenna is visible atop the pole at the corner of the deck.

The new Diamond X-300NA VHF/UHF ham radio antenna is visible atop the pole at the corner of the deck.

I unbolted the X-300 antenna from its storage place on the side of the 40-foot tower and set the base on the east deck railing.  I then got one of the 35-foot heliac coax cables from the basement and attached it to the feed point of the antenna.  With Linda’s assistance I mounted the antenna to the top of the topmost mast section and zip tied the coax to the mast.  Back up on the ladder I was able to slip the upper mast sections into the lower mast sections and add a couple more zip ties to secure the coax.

I routed the coax over to the cable entry box (CEB) so that it was not visible.  The antenna is shielded from view by our Norway Crimson King Maple tree and the mast is very inconspicuous; not bad for a temporary installation.  I disconnected the X-50 antenna coax from the Morgan UHF/VHF Lightning Arrestor in the CEB and attached the coax from the X-300 in its place.  I went back to the ham shack, turned on the Yaesu radio, and listened.  Nothing.  I tried calling the South Lyon 2m repeater but nothing came back.  I tied the Novi 440 MHz repeater…nothing.  I turned the radio off and moved the coax to our Icom IC-7000 radio and repeated the tests.  Same results.  Something was clearly wrong so I called Mike (W8XH) to see if he could help me figure it out.

Mike was out but on his way back home and called me when he was back at his base station.  We verified the transmit and receive squelch settings on my radios and then tested both antennas on both radios.  Using our cell phones we confirmed that he was not hearing my transmissions and I was not hearing his, either direct (simplex) or through the repeaters.  It was now clear that RF signals were not making it into or out of my system and there was one component that was common to all configurations; the Morgan M-302N VHF/UHF Lightning Arrestor.

I have a coaxial cable adapter kit that allows me to temporarily interconnect most of the connectors used in amateur radio coaxial cables.  At Mike’s suggestion I used the kit to assemble an adapter (barrel connector) with N-female connections on both ends.  I then disconnected the antenna and radio coaxial cables from the lightning arrestor and connected the radio coax directly to the X-300 antenna coax.  Back in the ham shack I tested this configuration with both radios on both repeaters.  I was receiving both repeaters with S7 to S9 signal strength, which is good, and very little noise, which is also good.  Mike reported that my signal was very strong into both repeaters and that he was receiving me full-quieting.  I shut the radios off and then switched the connection in the cable entry box to the X-50 antenna.  We repeated the tests with the same results, confirming that the problem as the lightning arrestor and only the lightning arrestor.

The current status of the cable entry box.

The current status of the cable entry box.

Although I was disappointed that the M-302N was defective I was overjoyed, or at least relieved, that everything else was working perfectly.  Although the new X-300 antenna turned out not to be “necessary” having it on a mast above the tower will give us an even better transmit and receive capability than the current X-50 installation.  I even have some hope of being able to reach repeaters farther away in the Detroit metro area as well as in the Lansing, Flint, Ann Arbor, and Ypsilanti areas, and perhaps much farther beyond.  Windsor (Canada) and Kalamazoo are possible when atmospheric conditions are right for longer range propagation, and the Saginaw, Mt. Pleasant, Fort Wayne (Indiana), and even Cleveland (Ohio) areas are not out of the question.  Once, at the old house, I was on the Spirit of 76 repeater atop the Renaissance Center in Detroit when it picked up a 2m station from Iowa.

Relieved of my concerns, especially about the operation of our new radio, I returned to my computer-based tasks.  The first thing I did was e-mail Chris Perri at KF7P Metalwerks regarding the lightning arrestor, which I purchased from him as part of the cable entry box.  He apparently forwarded my e-mail to Morgan Manufacturing Inc., or at least e-mailed them, as I got an e-mail from Bob at Morgan with instructions on where to return the unit.  It has a lifetime warranty and he indicated they would repair or replace it as needed.

I spent the rest of the afternoon and evening, except for dinner, working on photos.  Dinner was chickpea salad on a bed of greens with steamed baby bok choy dressed in rice vinegar.  It was a perfect meal for a warm summer evening.

The humidity had been up all day and rose as the temperatures dropped at sunset, although they did not drop much.  Linda was watching an episode of Scorpion when I finally came upstairs.  We watched an episode of NCIS Los Angeles after that and then an episode of Two and a Half Men, which I have always enjoyed.  We turned on a small fan but it was a warm, uncomfortable evening for sleeping.  For whatever reason we did not turn on the air-conditioner although in hindsight we should have.

 

2015/06/30 (T) Three Score and Five

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Today was a milestone birthday for Linda.  We had our usual leisurely early morning with coffee, fresh fruit, and cinnamon raisin toast (from Metropolitan Baking) for breakfast.  We talked some more about our long-term ham radio plans and decided we would order one (1) of the new Yaesu FTM-400DR/DE dual band mobile radios and a slightly more powerful VHF/UHF base station antenna.  Our daughter called around 9 AM to wish her many happy returns of the day.  My Michigan Public School Employee Retirement System (MPSERS) health insurance shifted her to secondary, with Medicare as primary on June 1st, the first day of the month in which she turned 65.

The temperature was in the low 60’s when we got up at 6:30 AM.  The weather forecast for the afternoon had an increasing chance of rain and the possibility of isolated thunderstorms so Linda went for a mid-morning walk.  I headed to my office to order the radio and a Diamond X-300NA 2m/70cm antenna.  All of the online distributors are selling the radio for the same price.  I decided to buy both products plus the RTSystems programming software, from Amateur Electronic Supply (AES).  Their UPS Ground shipping is “free” and since they are based in Ohio the shipment will be here in 1-2 days rather than 4-5 days.

I took a break and spread three more bags of brick pieces around the base of the tower and in front of the cable entry box.  Back in my office I dealt with some personal e-mail.  I sent an e-mail to Scott (KE9FOX) at QTH.com with additional information he needed to transfer the SLAARC website and domain name registration from GoDaddy to QTH.com.  I then gathered up a load of laundry and put it in the washer.

By the time that was all done it was getting close to lunch time.  Lunch was a big spinach and lettuce salad, baby carrots, a few sourdough pretzel nibblers with roasted red pepper hummus, fresh sweet cherries, and the blueberries/strawberries/raspberries that were left from breakfast.

After lunch I transferred the laundry to the clothes dryer and then got cleaned up.  We left around 3 PM for the U.S. Bar and Grill in Wayne and stopped on the way to get a card.  Today was John Smallwood’s last day at Wayne RESA and there was a gathering from 3-to-6 PM to see him off.  John was the VP of the Wayne County Salaried Staff Federation (WCSSF) and succeeded me as President of the local when I retired.  Now it was John’s turn to enjoy a well-earned and well-deserved retirement.  This was the second gathering for a colleague in the span of just over a month.  Besides wishing John well it was an opportunity to reconnect with other former colleagues.

After a suitable amount of time visiting at John’s party Linda and I drove to the Mongolian Barbecue in Novi for a celebratory birthday dinner.  It is a very noisy restaurant but was not as bad on a Tuesday evening as it was the last time we were here on a Saturday.  I would have preferred a quieter and more relaxing atmosphere, but the Mongolian Barbecues have a lot of ingredients that we can eat and we find the method of preparation very much to our liking.  By the time we had a small bowl of soup, a moderate sized salad, and a good size bowl of ingredients we were full.

I had a brief QSO with Chris (K8VJ) on the drive home.  I stopped at the Shell station and topped off the gas tank in my car so we would be ready to go in the morning.  We finally got home at 8:30 PM.  Linda made some hot tea and we each had a piece of Prickly Pear Cactus Jellied Candy.  I restarted the dryer on Touch Up and checked my e-mail.  We were tucked in by 10 PM as we needed to be on the road by 7:30 AM tomorrow.

 

2015/06/29 (M) Website On The Air

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Linda was up at 5:55 AM this morning and left for the bakery at 6:15.  Experience has shown that this is usually early enough to get ahead of the morning rush hour traffic inbound to the Detroit metro area from the northwest.

I got up about an hour later, had granola for breakfast, and enjoyed my morning coffee (Sweet Seattle Dreams half-caff blend from Teeko’s) and then made a run to Lowe’s to purchase a couple of copper ground lugs and 5 feet of #10 green ground wire.  Back home I tried to use one of the ground lugs to terminate the ground wire from the cable entry box (CEB) to the 36″ ground bar on the wall behind the ham radio desks but it’s shape prevented the wing nut from going onto the stud.

I planned to use the other lug to attach one end of the #10 wire to the ground bar and put a male spade lug on the other end to mate with the connector on the Go Box ground pigtail, but that clearly was not going to work.  I dressed the ground wire and (temporary) coax in the ham shack and put the ceiling tile back in place.  I then started cleaning up the living room and small bedroom per Linda’s request before she left this morning.  Some of our (my) projects have a way of expanding throughout the whole house.  I had hoped to also pick up the coax cables spread out in the recreation room, and at least start to straighten up the ham shack/office, putting materials away and moving tools to the garage.

At 10 AM I made a few phone calls.  The first was to Rick Short at ISRI USA regarding the 6860 bus driver’s seat and a possible visit tomorrow morning.  I got his voice mail (again) and never got a return call (again) so I gave up on getting any assistance from him or from ISRI USA.  I called Linda to make sure she did not have any commitments on Wednesday and then called Josh at Coach Supply Direct to set up a visit to his shop for Wednesday late morning.  Linda and I plan to finalize our Flexsteel furniture order and give Josh the deposit during that visit.  Next I called Scott Adams, AC8IL, at Adams Electronics and ordered a 20 foot length of LMR-400 with an N-male connector on one end and a PL-259 connector on the other end.  Scotty and I also chatted briefly about tower bases.

I e-mailed Scott Neader at QST.com regarding the transfer of the SLAARC domain name and website from GoDaddy to QST.com and got a reply back right away with an outline of the steps I needed to follow.  First on the list was creating an account for our ham radio club through his billing system.  I took care of that and e-mailed him back.

Keith Kish, from Kish Lawn, care showed up around 11 AM to cut the grass.  When he was done I headed back to Lowe’s to look for an alternate ground clamp and pulley support for the tower but did not find anything suitable.  So as not to have it be a wasted trip I bought three more bags of broken brick pieces to use around the tower base and cable entry box.

I spent some time looking at the Yaesu FTM-400DR/DE on several different ham radio equipment vendor websites.  Yaesu is offering a $100 rebate on this 2m/440 mobile radio through tomorrow.  All of the distributors are selling it for the same price, $599.95 and the rebate brings it down to $499.95, so if I buy one it will come down to who has them in stock and is offering free shipping.

Linda got home from the bakery around 3 PM, earlier than I expected and nice for her.  She went for a walk while I continued to fuss with ham radio and website stuff.

For dinner Linda made a white beans and mustard greens dish.  We eat a lot of lettuce, kale, and spinach, both raw and cooked into dishes, but only occasionally have collard greens or mustard greens.  Mustard greens have a very strong, bitter flavor and I liked them more than Linda did.  I think they are an acquired taste and may be more suitable as an accent ingredient rather than a main one.

After dinner I checked my e-mail and had a reply from Scott at QTH.com.  The QTH SLAARC account invoice was ready so I paid it using a personal credit card.  I then moved the coax from our Icom IC-7000 to Mike’s Icom IC-2820H and turned it on.  Mike was on the South Lyon repeater discussing the Field Day event with Steve (N8AR) and Bruce (W8RA).  Paul (N8BHT) was able to join the conversation but I was not successful breaking in so I just listened.  It was an indication that my power into the repeater was probably still marginal but a good reminder that ham radio conversations are very public.

When they were done I called for Mike and he came back.  We had a good QSO (chat) about the Yaesu FTM-400.  Jim (N8KUE) joined in for a while.  After Jim dropped off we tested my ability to transmit to, and receive from, both the South Lyon 2m and Novi 70cm repeaters.  The added power of the IC-2820H over my IC-7000 (50W vs 35W in the 70cm band) combined with the lower signal loss of the better coax made just enough difference that I could hold the Novi repeater when transmitting although my signal was still on top of a lot of noise coming back out of the repeater.

Linda wanted to watch an episode of Scorpion, followed by NCIS Los Angeles, after which I caught an episode of Two and a Half Men and then turned off the TV.  I will have to make a decision about the Yaesu FTM-400 in the morning.

 

2015/06/28 (N) Field Day Teardown

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I was up at 7:15 AM and showered.  The rain finally cleared out leaving blue skies but with scattered white clouds still blowing across the region on brisk winds out of the NNE.  Linda was up by 8 and got the fresh fruit ready for our breakfast cereal while I made the coffee, which we enjoyed in the living room to warmth of the natural gas fireplace.  I did not expect to be using the fireplace this time of year but we have the furnace turned off, and are still getting overnight lows in the 50’s, so the fireplace is an effective and charming way to alleviate the slight morning chill in the front of the house.

In spite of the weather the food tent stayed up and open for business.

In spite of the weather the food tent stayed up and open for business.

I finished up the draft of my blog post for yesterday and started on this one while I drank my coffee.  By 9:45 AM I was ready to install the #6 green coated ground wire I bought last night.  I also decided to switch out the coax from the cable entry box (CEB) to the ham shack.  Linda had made a grocery list and left to do the shopping.

Outside I opened the CEB and disconnected the current VHF/UHF coax and let it slide back into the sump pump room (SPR).  Inside I removed the suspended ceiling tile in the northeast corner of the ham shack and routed the ground wire over the wall into the SPR.  I fed it through an existing cable tie on the bottom of one of the floor joists and through the outer wall into the CEB.  I had an unused copper ground lug and used it to connect the ground wire to the lower right mounting stud for the CEB copper backplane.

Back inside I uncoiled a length of 50 ohm coax that I borrowed from Mike (W8XH) and followed the same path as the ground wire.  Outside at the CEB I installed an N-male/SO-239(F) adapter onto the PL-259 connector on the end of the coax and attached it to the N-female socket on the lightning arrestor.  I was finished working in the CEB, closed the cover, and went back to the basement.

I decided to install the 36″ copper ground bar on the wall behind the ham shack desks just below the 120 VAC outlet strip, which required me to move the desks away from the wall.  I attached the end of the ground wire to one of the studs by spreading the strands and placing them under a washer and wing nut.  I need to get another copper lug to do this right.

Steve (N8AR) operating the 6m opening from the radio in his car.

Steve (N8AR) operating the 6m opening from the radio in his car.

I had a five foot length of braided tinned copper strap and used it to connect the ground terminal on the Go Box to the ground bar.  I spread the braid apart to make a small hole near each end, slipped the holes over the studs, and clamped them under washers.  This was a temporary arrangement for testing purposes.  I need to configure a length of #10 copper wire with a ring terminal on one end and a make spade connector on the other but did want to take the time to do that today.

With everything hooked up I called Mike (W8XH) to see if he was available for a quick radio test.  He was still at home and about to leave for the SLAARC Field Day site but gladly delayed his departure long enough to help me test the new configuration.  The result was a better send and receive signal on 2m, both direct and through the South Lyon K8VJ repeater, with an S3 received signal strength with the pre-amplifier turned on.  The direct signal was also a little better on the 440 MHz band but my received signal from the Novi repeater was still weak and noisy and my transmit signal was still not strong enough carry the repeater.

I had planned to leave around 11AM for the SLAARC Field Day site but wanted some lunch before I left.  I had just made a sandwich and was gathering up my equipment when Linda got back from her grocery shopping.  By the time I left it was past noon.

I was interested in our ham radio club’s participation in this year’s ARRL Field Day event but neither Linda nor I had had any need or desire to operate radios.  I worked all day Friday on the setup of the towers and antennas and helped a bit last night with the emergency teardown of the VHF/GOTA canopy.  The 24-hour Field Day operating window closed at 2 PM today but some of the teardown began before that time and I wanted to be there to help.

SLAARC members enjoying lunch outdoors at the Field Day site.

SLAARC members enjoying lunch outdoors at the Field Day site.

Some teardown was already underway when I arrived at the SLAARC Field Day site and lunch was also just being served, so everyone took a break to get something to eat except Steve (N8AR).  He was sitting in his car making contracts on the six meter (6m) band using the mobile radio in his car.  He had connected it to the 6m beam antenna on top of the big tower.  The 6m band is known as “the magic band” because it will suddenly “open” and allow very clear communication over great distances and then just as suddenly close.  It had apparently opened up this morning from the Mississippi River to the East Coast and south into the Caribbean.  One of our members made a contact with someone in the Dominican Republic.  While I was watching and listening I heard calls coming in from South Dakota and New Mexico.

This is the fourth year that Marianne Roney, the wife of one of club member Ed Roney (KD8OSM), has taken care of the Field Day meals, which include lunch and dinner on Saturday and breakfast and lunch on Sunday.  The meals are $5 per person per meal, which is a bargain for the variety and quantity of things she prepares and provides, except that there is typically very little we can eat.  She would make special provisions for us if we asked (she did the first year) but it is extra work for her and we are still left with not being able to eat most of what is available, so we do not purchase meals.

Operating stations are often staffed by two people, one operating the radio (left) and the other logging the contacts (right).

Operating stations are often staffed by two people, one operating the radio (left) and the other logging the contacts (right).

As the operating event was drawing to a close the computer in the 40m tent shut down.  The computers are not used to operate the radios, but are connected to them and are used to log the contacts using the N1MM Logger+ program.  The program reads key information about frequency and mode from the radio so all the logger has to capture are call sign, operating category, and section.  (Club member Larry, K8UT, is a member of the N1MM Logger development team.)  Every radio was paired with a laptop computer running this program, and the computers were all linked together via Wi-Fi.  As a result, the operators/loggers at each station could see all of the contacts that were being made regardless of which station made the contact and each computer contained a complete list of contacts.  The program also flags “dupes” (duplicate contacts).  In a contest situation this allows the operator to see that they have already worked that station on a particular band and mode and not spend time working it again on the same band and mode as duplicate contacts do not contribute to the contest score.

Just as it had started 24 hours earlier, at 2 PM it was all over without any fanfare.  The radios and computers were shut down and then the AC power generator was shut down.  Cords were unplugged, coiled, and staged near the vehicles they would eventually be loaded into.  Radios and computers were carefully disconnected, boxed (in some cases) and carried to the vehicles of their respective owners.  Tarps were pulled from the tents and folded and then the tents were collapsed and folded.  Four of use took down the 40m crossed dipole (inverted V) antenna and then took down the small support tower and disassembled it.  A larger crew eventually lowered the bigger tower, which required a winch, until it was resting in a step ladder.  This was necessary because of the two beam antennas at the top of the tower.  They removed the 6m and then the 20m beam antennas and then lowered the tower to the ground.  Part of the crew disassembled and packed the two beam antennas while the rest of them took the tower apart

A path map from Eric's (K8ERS) cell phone of the early morning 6m band opening.

A path map from Eric’s (K8ERS) cell phone of the early morning 6m band opening.

We were essentially done with the teardown by 4 PM.  The teardown is always much faster than the setup and yet it was very relaxed and went very smoothly.  In spite of weather challenges all day Saturday and overnight into Sunday, and the disappointment of not having all of our stations on the air due to losing tents to the wind, we had a beautiful last day for the event and teardown.  Blue skies, white puffy clouds, cool temperatures, lighter breezes, and low humidity combined with a sufficient number of competent, helping hands, made for easier work for everyone.  The group stood around reflecting on the event and everyone was in a good mode, a sure sign that the 2015 ARRL Field Day had been a success for the South Lyon Area Amateur Radio Club.

I was the last one to pull out, right behind Steve who was towing a fully loaded enclosed trailer with a lot of the club’s equipment in it and on it.  We chatted via the South Lyon repeater on the drive home, our last radio work for the day.  I was home by 5 PM and just relaxed until dinnertime, tired from the sun, fresh air, and work.  For dinner Linda made a potato and spinach curry dish that she found in her Indian cookbook.  She also steamed some asparagus that she bought at the Howell Farmers Market this morning.  We had a quiet evening of reading, writing, and games before turning in at 10 PM.

 

 

2015/06/25 (R) The Mouse

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Brighton Honda called yesterday in the afternoon to get permission to do additional work on my car.  Since we plan to keep the car for a while, and then perhaps give it to our son, it was the kind of work that needed to be done regardless of the costs.  They called back later to indicate that they would not have it aligned before closing time.  That was fine with us as it would have been inconvenient to impossible for us to get there by 6 PM to pick it up.  Linda told them to call in the morning when it was ready.

The top of the 40-foot tower from the WNW showing all of the antennas and the pulley with the haul rope. The weather had definitely deteriorated from the day before.

The top of the 40-foot tower from the WNW showing all of the antennas and the pulley with the haul rope. The weather had definitely deteriorated from the day before.

It is amazing how attuned we become to routine sounds and how sensitive we are to non-routine ones, even (especially?) while sleeping.  So it was last night that I was suddenly aware that one of our cats was making a repetitive sound that was unusual.  I turned on my flashlight, hoping to not disturb Linda, and got out of bed.  Both cats were hunched down on the floor on Linda’s side of the bed with Jasper in front.  He was the one responsible for the sound and the reason was next to his head and about 3 inches away; a little dark gray mouse.

My first thought when I see one or both of the cats with a mouse next to them rather than in their mouth is that it is dead but that was not the case.  This mouse was alive and apparently not injured.  I have seen this behavior before in which the mouse basically “plays dead” and the cats leave it alone but watch it carefully.  Mice seem to know that cats are triggered by movement and that if they sit very still the cats just sit there and guard them.  It was 4:30 AM and I was not fully awake so I do not recall the exact sequence of events, but the mouse somehow ended up in our master bathroom.   I do not recall what I did with the cats but I think I went and got a box with high sides and tried to get the mouse to go in it and it made a run for it towards the bathroom.  Linda was awake by this point so she got a towel for me.  I went in the bathroom and used the towel to block the gap under the door and prevent the little critter from getting back into the bedroom while I tried to get it into the box.  I was unsuccessful and it managed to find a place to hide in the hot water baseboard radiator.

Linda got one of the live traps we recently purchased and baited it with the recommended saltine and peanut butter.  We set the trap near the radiator, turned out the bathroom light, shut the door, and tried to plug the gap with the towel from the outside, figuring we would deal with the mouse in the morning.  Juniper kept pawing at the towel and pulling it back from the door so we put both cats out of the bedroom and shut the door.  They found that confusing as they sleep with us and generally have the run of the house.  One or both of them pawed at the door meowing to get back in for quite a while.  It wasn’t the best night’s sleep we have had and the timing was unfortunate given the hard day of tower work.

Brighton Honda called at 8:01 AM to let us know the car was ready.  Hello, I’m awake now!  I checked on the mouse and it was now safely tucked away on top of the radiator fins inside the housing where neither the cats nor I could get to it.  We decided to leave the live trap in place, sealed the gap under the door, and kept the bedroom door shut to keep the cats out.

I had planned to drive to Isringhausen’s U.S. headquarters in Galesburg, Michigan today but first we had to get my car.  As long as we were headed that way we decided to go to the Brighton Panera for coffee, but had toast and juice for breakfast at home before we left.

The 100,000 mile service is extensive and includes changing the spark plugs.  Beyond the routine service items the Element needed a new ball joint and tie rod and had a stuck brake caliper pin that had to be repaired.  Given the front end work I also had them align it.  Butch and I rebuilt the front brakes last year so I was surprised that there was an issue with them, but the car has been towed and driven in some harsh environments since then so that may have been a factor.

The Panera at Grand River Avenue and I-96 is not one of our favorites.  More often than not we end up with coffee grounds in our cups and the bathrooms are not maintained as they should be.  Today was not the first time we have been to this location that the men’s restroom was out of toilet paper.  It is also often freezing cold inside the restaurant and today was no exception.  The weather was overcast and a bit gloomy but the outside temperature, while not warm, was much more comfortable than inside.  We were also unable to connect to their Wi-Fi signal, which is generally useable.  That’s pretty basic stuff to not be able to get right and falls squarely on local management in my opinion.

While we drank our coffee I called Rick Short at ISRI to make sure he would be in but I got his voice mail again.  I asked for a call back but never got one so I did not make the trip to Galesburg.  Apparently they have better things to do than be of assistance to me.  I only want to buy one chair, not a fleet of chairs, so I understand my relative unimportance, but I don’t like it just the same.  We decided to spend the day at home completing the work from yesterday, which had made a mess throughout the house.

One of the things we needed to do was register our cellular booster system.  Given that it is a five band device I was not clear on whether we had to register it only with Verizon or with all of the carriers.  I called the company we bought it from, Cellular Solutions, and talked to Judy who said we only had to register it with the carriers we personally use.  For us that is Verizon Wireless.  Registration was via the Verizon Website and was simple enough.  It did, however, require me to log in to our My Verizon account and navigate through a couple of screens to a page where we could enter the information from the label on the box.  The serial number was on two peel off tags, so one of those went on the booster and the other one went in the manual.

With the unit registered I turned the power switch on and watched the ‘Alert’ lights all go solid yellow.  As I mentioned in yesterday’s post solid yellow lights are not described anywhere in the manual.  I called Cellular Solutions back and said I had a technical support question.  The woman on the phone took my name and number and said someone would call me back.

Since I was apparently taking care of phone chores I decided to call Universal Towers and inquire about their B-30 base.  The woman who answered the phone never gave her name but was able to answer some questions.  She indicated that their base might or might not be compatible with older Heights Tower products, depending on exactly which product I had, and that I would have to talk to the owner, Bill, who wasn’t there at the moment.  She did know that the outside-to-outside measurement of the legs on a B-30 base was 30 inches and the base cost $290.  She also told me that the larger bases, like the B-30, consisted only of the three rods with the mounting yokes on top; the three rods were not otherwise connected together in any way.  She also confirmed that the ‘U’ shaped yokes at the top of the base rods were welded on and not adjustable.  The normal installation procedure involved connecting them to the bottom of the legs of the first section of the tower, setting them in the hole as the concrete is poured, and adjusting them by moving them around until the legs of the tower were plumb.  That sounded to me like a process where a lot could go wrong and not be repairable.

I pulled a 75 ohm coax out of the ceiling of the basement yesterday.  We laid it out in the basement to see how long it was and it looked to be at least 60 feet.  Linda suggested we test it before running it through the basement ceiling which was a very sensible idea.  I unplugged the power adapter for the TV amplifier power inserter, detached the coax that feeds the TV in the bedroom, attached the downstairs cable, and connected the other end to the basement TV set.  Linda set up the TV for Antenna input, did an All Channels scan, and got the same stations we got yesterday, minus a couple.

In spite of what appeared to be acceptable performance I decided I wanted a new coax cable and Linda wanted to return three of the ropes I bought at Lowe’s but never used.  She found the receipt and we went to Lowe’s.  They had a good quality RG-6 quad-shield coax (75 ohm) in various lengths including 50 feet, which is what I needed.  At the register I decided to buy two more 40 pound bags of solar salt.  I am not an impulse shopper as a rule but their supply of Morton Solar Salt was very low and stocking up seemed like a good idea.

We stopped at Teeko’s to order coffee.  Mary took our order and rang it up; one pound each of the three different half-caff blends that have become our standard.  We took note of the fact that the Bennigan’s restaurant building on the northwest corner of Grand River Avenue and Latson Road was gone and a sign said a Panera would be coming soon to that location.  We didn’t say anything to Mary, but that cannot be good news for Teeko’s.  We will continue to buy our custom roasted beans at Teeko’s as long as they are open but it is going to be difficult for them to compete with a $2.25 cup of bottomless coffee, free Wi-Fi, a restaurant, a bakery, drive through service, and ample parking with great access to I-96.

When we got home I checked the live trap in our master bathroom and we had captured the mouse.  We took the trap to the northeast corner of the property, towards our neighbor’s pond, and set it free.  It did not want to leave the trap and I had to encourage it to go.  Once it hit the ground, however, it scampered away looking for a place to hide.

We then worked on running the new coax from the basement TV to the sump pump room above the suspended ceiling.  I disconnected the power inserter for the amplifier and disconnected the old coax we had tested earlier.  I notched a ceiling panel at the corner of a boxed support column behind the basement TV to allow the ceiling tile to go back into place around the coax.  We then installed one of the wire channels to contain and hide the coax from the ceiling down to the TV set and connected it to the back of the set.

In the sump pump room I attached the coax from the cable entry box (CEB) to the input of the new 1-to-2 signal splitter.  I attached the coax for the bedroom TV to one output from the splitter and the coax we just ran to the other output.  I mounted the splitter on the wall of the sump pump room and secured the cable coming from the CEB to the ceiling.  I then plugged the power supply for the power inserter back in to an AC outlet.  Linda scanned for channels and verified that everything was working correctly.  We then installed the other wire channel alongside the trim on the bedroom doorwall to route and hide the cable coming up from the basement.

I continued to fuss with the cell phone booster gain settings.  We had not gotten the promised return phone call from Cellular Solutions Technical Support so I called them.  I got Judy again and explained what I was seeing with the solid yellow lights.  She checked with her tech support people and they said the manufacturer (SureCall) told them the solid yellow was the same as the blinking yellow; that the booster was adjusting the gain and it was “normal.”  The manual says that normal is when the light is off, so I’m not sure I buy this explanation, but based on that I left the booster turned on.

With all of that done we started cleaning up the tools and materials we had scattered over two floors of the house.  I decided that was also a good time to start a load of laundry, although it was actually rather late in day for that.  I did three loads by the time I was done and it was sometime after 10:30 PM before the last load was dry.  I needed to be up at 7 AM to be at breakfast in South Lyon at 8 AM as our SLAARC group would start setting up for the ARRL Field Day event at 9 AM.

 

2015/06/24 (W) Up The Tower

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Today was the day to finally climb the tower to remove an old TV antenna, reposition an amateur radio antenna, and install two new antennas, one for OTA TV and the other for a cellular booster system.  But there were other things to do before I was ready to climb.

I was up at 7 AM and on my way to Lowe’s in Howell by 7:20 AM in search of a solution to the problem of how to mount the outdoor cellular booster antenna.  I ended up buying two 2-1/2 inch U-bolts.  Although the tower legs are 1-5/8″ in diameter the angle bracket attached to the bottom of the antenna is 2-1/4 inches wide.  Thus I needed the 2-1/2 inch spacing for the threaded ends of the U-bolt to clear the bracket.

Back at the house Linda was up and had the coffee made.  We had a quick breakfast of homemade granola.  I removed the tire pressure sensors and GPS from my car and headed to Brighton Honda to drop it off for its 100,000 mile service appointment.  Linda arrived at the dealership about 10 minutes later.  We then headed to Adams Electronics in Wixom.  While Adams Electronics primarily serves the public and business communications markets owner Scott Adams, AC8IL, is a long-time ham and a member of the South Lyon Area Amateur Radio Club and Novi Amateur Radio Club.  Well known in the local amateur radio community, Scotty is the local go-to guy for certain kinds of equipment.  I ordered two coaxial cables from him the other day and we were here to pick them up.

We left to return home at 10 AM so I called Mike (W8XH) to let him know we were running a little behind.  So was he, but thought he could be at our house by 11 AM.  That gave me time to drill a hole in each of the two U-bolt retaining plates and cut a short piece of 1″ square aluminum tube to use as a spacer.  That was the last fabricating I needed to do and we got busy staging all of the materials we were going to need to get the tower work done efficiently.

Setting up the tools and parts outside the "drop zone" of the 40-foot tower on the east end of the house.

Mike (W8XH) setting up the tools and parts outside the “drop zone” of the 40-foot tower on the east end of the house.  (Photo by Linda)

Linda set out a sheet near the tower but not in the “drop zone.”  We spread out materials and tools on the sheet and used it to make sure we could find things quickly and keep them from getting lost in the grass.  I also brought all of my tool boxes to the tower area.  With everything assembled it was time to climb.  I set up our 7 foot step ladder on the east end of our rear deck to provide access to the roof near the tower.  Mike helped me into his climbing harness and got it adjusted.  Once on the roof I took the harness off temporarily as my first task was to remove the 2m/70cm base station antenna.  After clipping the plastic cable ties I lowered it down to Mike while Linda took photographs.  (She helped with many aspects of the work today but was the only photographer.)

Starting up the tower from the roof of the house. (Photo by Linda)

Starting up the tower from the roof of the house. (Photo by Linda)

I put the harness back on and Mike tossed me one of the 100 foot ropes which would eventually be used to haul materials and tools up and down the tower.  I secured the haul rope to one of the unused seat clip rings and Mike instructed me on how to secure the harness while climbing.  I put the waist strap around the tower and clipped it in.  I then put one of the two fall cables, attached to the ring at my upper back, around one of the legs above one of the cross bars above my head and clipped it into the ring at my chest.  The tower is adjacent to the east end of the house and is attached to it by two pipe assemblies just below the soffit (the house has hip roofs) so it was easy to step onto it.  After that things got tougher.

The horizontal trussing on the tower is two feet apart vertically.  That spacing was right at the limit of how high I could lift my right foot and required me to pull myself up part way until I could push with my right leg.  Once up on the next rung I attached the other fall cable, moved the first one higher, and slide the waist strap up to position myself for the next step.  I repeated this pattern with the two fall cables and the waist strap as I worked my way slowly up the tower, clipping old plastic cable (zip) ties as I went.  The tower definitely had some give but I was quickly acclimated to the amount of sway and found it to be acceptable so we decided not to guy the tower with the other three ropes, which would have slowed my ascent even more.

When I finally reached the top of the tower I untied the haul rope, looped it over one of the southeast facing horizontal bars and hauled it up allowing the free end to lower down to the ground.  Mike then tied the rope to the standoff pulley I had fabricated and hauled it up to me.  I already had cable ties, a diagonal cutter, and a pair of slip pliers with me.  I set the threaded rod on the northeast and southeast cross bars, inside and against the two legs that were parallel to the side of the house, and secured it with cable ties.  This was a three-handed job that I had to do with two hands but I got it done while only dropping one cable tie.  With the pulley rod secured I undid the rope and then undid the knot tying the two loose ends together.  I fed one end through the pulley and retied it to the other end.  We now had a way to haul materials and tools (in a bucket) up to me at any needed height while keeping it 18 inches away from the tower.

Three-quarters of the way up ad working with the haul rope. (Photo by Linda)

Three-quarters of the way up ad working with the haul rope. (Photo by Linda)

The next task at the top of the tower was to remove the old TV antenna, mast, and rotor.  When I finally had a close up view of these old components it became apparent that my best course of action was to try and unclamp the base of the mast from the rotator, lift it off of the rotator, and toss it to the ground.

The mast clamp parts were all very rusty so Linda got the WD-40 and Mike sent it up in the bucket.  I sprayed the nuts on the mast mounts and also the rotator leg clamps.  I tried undoing the mast clamps with a slip pliers but it was no good, so Mike sent up three open/closed end wrenches.  One of them was the right size and to my surprise the rusted nuts broke loose and started backing off.  One of them did not want to come off but unscrewed the entire bolt instead.  Fine.  The bolt had a screwdriver slot in the top and was threaded into the rotor housing and I did not care how it came out as long as it did.  I got the mast clamps loose enough that I could work the bottom of the mast free from the top of the rotor.  There was a lot of rust there too.  After clipping some coax cables, rotor control wires, and plastic cable clamps I repositioned myself up one rung on the tower so I could get enough leverage to the lift the mast clear of the rotator collar and control it well enough to make sure the antenna fell to the ENE away from the house and my helpers down below.  And that is exactly what happened.

The first antenna to get mounted was the outdoor antenna for the cellular booster system.  Mike sent the antenna up in the bucket along with the various pieces I needed to secure it to the short top/center mast support tube so the entire antenna, which is omnidirectional, was above all parts of the tower.  What would have been an awkward assembly on the ground took on added difficulty 40 feet in the air but I got it secured with good access to the N-female connector on the bottom.

At the top with the pulley in place and using it to haul up a bucket with tools and parts. Mike is controlling the haul rope on the ground. (Photo by Linda)

At the top with the pulley in place and using it to haul up a bucket with tools and parts. Mike is controlling the haul rope on the ground. (Photo by Linda)

We decided to run the coax on the outside of one of the tower legs rather than down the inside of the tower.  Mike tied the LMR-400 coax to the rope and hauled it up to me.  In addition to the haul rope Mike tied a second control line to the bucket to keep it from swinging all over the place.  I connected the coax to the antenna feed point and then wrapped the connection with coax seal tape.  I then routed the coax down the east leg of the tower and zip tied it to take the weight off of the antenna connection.

Next up was the 2m/70cm amateur radio base station antenna, often referred to as a 2m/440 dual band antenna.  (In this nomenclature the “2m” refers to a range of wavelengths for one of the VHF ham bands and the “440” refers to a range of frequencies for one of the UHF ham radio bands, so it is a mixed units designation.). The antenna is about five feet long with three short counterpoise (ground plane) rods near the base.  It had an LMR-400 style cable connected to it but with PL-259 male connectors on each end.  The antenna feed point is an N-female connector so I had an adapter installed to make everything compatible.  Mike removed the coax and the adapter, zip tied the antenna to the haul cable at three points, put the 10mm wrench in the bucket, and hauled it up to me.

The ham radio antenna was also tricky to get mounted.  I installed it at the top of the northwest leg so that most of the antenna was above the tower and two of the three short counterpoise were parallel to the west (N-S) and northeast (NW-SE) crossbars.  The antenna by itself is light in weight but it is five feet long and mounts at the bottom nine inches, so most if it was above me with a tendency to wave around in mid-air.  With the coax connected, however, it weighed quite a bit more.  I temporarily zip tied the coax to take the weight.  I then had to hold the antenna with its base against the northwest post at my head level, push a U-bolt through the mounting bracket and past the tower leg, slip the mating clamp over the two ends of the U-bolt, and then get a small lock washer and nut on each threaded bolt end.  I then had to repeat this for the second U-bolt.  Again, a three-handed job that I had to do with only two hands.

The old OTA TV antenna and mast on the ground. It came down by the gravity method. (Photo by Linda)

The old OTA TV antenna and mast on the ground. It came down by the gravity method. (Photo by Linda)

The bonus to this work at the top of the tower was a commanding view of the surrounding countryside, which was mostly trees in every direction.  I even saw two towers far to the north and was kept company by a soaring vulture just to the NNE.  I was also able to determine that the tops of the large white pine trees behind the east end of our house are about 10 feet higher than the top of our tower, putting their overall height at about 55 feet as their bases are lower than the base of the tower.  We plan to put the 70 foot tower at a spot that is surrounded by these trees on three sides (W, S, and E) so the top of the tower, and any antennas mounted there, will be well above the tree tops.  That is especially important as we plan to eventually put an HF beam antenna up there on a mast attached to a rotator and it will need to be able to rotate freely for 360 degrees.

The final antenna was the hardest.  The Antennas Direct DB8e OTA UHF/digital TV antenna was very large and heavy by comparison to the other two.  In this case ‘heavy’ meant a few pounds.  It is actually two UHF antennas mounted at the end of a dual support arm structure.  The support arm mounts to a vertical pole, such as a tower leg, at its midpoint and there is a combiner box located there as part of the mount.  A short length of RG-59 (75 ohm) coax connects each antenna to the combiner box and the main coax connects there as well.

How tall the tower appears (and feels) depends on where you are standing. (Photo by Linda)

How tall the tower appears (and feels) depends on where you are standing.  Pulley and haul rope in the upper right.  Lots of coaxial cables to be dressed (secured) on the way down.  (Photo by Linda)

RG-59 is a different kind of coaxial cable from the LMR-400 used for the first two antennas.  LMR-400 has a 50 ohm characteristic impedance and is used for receiving and transmitting RF energy with considerable power if needed.  RG-59 is much smaller in diameter, more flexible, has a 75 ohm characteristic impedance, and uses F-connectors that are the standard for OTA TV, video, and satellite cables.  But I have gotten ahead of myself.  I had to come down a few feet on the tower to install the TV antenna but before doing that I had to start securing the transmission lines to the tower legs with cable ties.

Mike rigged up the haul rope in a ‘Y’ to lift the antenna from its center of gravity while actually attaching the rope to its ends.  That allowed the haul rope to both support the weight of the antenna and keep it oriented correctly while I positioned and clamped it to the southwest tower leg with the dual support arms pointing in an east-west direction.  Because of where I had the pulley mounted, and the length of the ‘Y’ in the support rope, I had to mount the antenna a few feet lower on the tower.  Fortunately the slightly lower height was not going to affect its performance.

Like the ham radio antenna, the OTA TV antenna mounted to the tower leg at two points.  The upper assembly was a U-bolt with a retaining bracket on the back side.  The lower assembly was a pair of straight bolts that went through the combiner box past the tower leg and had a retaining bracket on the back side.  The antenna came with wing nuts instead of washers and regular nuts, which helped a little, but I really needed three hands to get the antenna into position and tighten the mounting brackets.

Mike ties off the DB8e OTA TV antenna with an inverted "Y" so it will haul up in the proper orientation. (Photo by Linda)

Mike ties off the DB8e OTA TV antenna with an inverted “Y” so it will haul up in the proper orientation. (Photo by Linda)

Once I had the antenna sufficiently attached to the tower I was able to position the support arm close to the southeast facing side of the tower.  I then pointed the antenna on the east end of the arm ESE towards the Detroit area TV towers and tightened the two nuts on the mounting studs.  (The horizontal dual support arms are about 3 feet long so I was able to reach through the tower to get to the mounting studs and nuts.) I left the antenna on the west end of the support beam loose and turned it out of my way so I could complete other tasks.

Mike attached the end of the main RG-59 coax to the haul rope, put the amplifier and a 2-foot length of RG-59 coax in the bucket along with lots of zip ties, and pulled them up to me.  The amplifier is about 3″ wide by 2″ high and 1.5″ thick including the concave plastic backplate.  The backplate accepts two zip ties for mounting to a pole.  I positioned the amplifier about 8 inches below the antenna combiner box and cinched up the two zip ties.  I then connected the short coax to the combiner box output and put the combiner back it its protective, weather-gasketed plastic box.  I connected the other end of the short coax to the amplifier input and wrapped the connection with coax seal weatherproofing tape.

Installing the DB8e OTA TV antenna required three hands. Note that I am installing it at the highest point possible when suspended from the pulley with the haul rope in an inverted "Y" attachment. (Photo by Linda)

Installing the DB8e OTA TV antenna required three hands. Note that I am installing it at the highest point possible when it is suspended from the pulley with the haul rope in an inverted “Y” attachment. The yellow waist strap allowed me to lean back and work while the two red security straps would catch me if something broke. (Photo by Linda)

I attached the main RG-59 coax to the output of the amplifier, which is also the DC power input, and wrapped the connection in coax weather seal tape.  I then dressed the cable and secured it to the tower leg.  I aimed the antenna on the west end of the support arm WNW towards the East Lansing TV towers and tightened the nuts to lock it in position.

At this point I was finally done working on the antennas but had three coaxial transmission line running down the outside of the tower, one by each leg.  As I descended the tower, reversing the protocol I used going up, I secured all three cables every few feet.  I finally had my feet back on the roof at 2:20 PM, almost exactly 2 hours and 30 minutes from when I started climbing.  Projects usually take me twice as long as I think they will but this was about half as long as I thought it would take, so we were all pleased that the work had gone smoothly and relatively quickly.  My main objective was to get the old TV antenna down and the three antennas up but my secondary objective was to only climb and descend the tower once.  Mission accomplished, at least for now.

By now we were all hungry and thirsty so Linda made chickpea salad sandwiches and set out fresh sweet peppers, sliced apples, baby carrots, and cold water.  After a suitable lunch break we returned to the next phase of the work which was routing the coax cables into the cable entry box (CEB) and making the connections.

We started with the RG-59 coax from the OTA TV antenna.  I coiled the extra cable and hung it on the tower (with zip ties, of course), routed it into the CEB and connected it to the power inserter / lightning arrestor.  We purchased this cable from a Radio Shack store in Florida two winters ago to hook up our bus to the RV resort cable TV system.  Besides the coax it had a separate ground wire.  The amplifier and the power inserter both had connections for a separate ground wire so I connected it on both ends.

Routing coaxial cable into the cable entry box from the tower and the basement and making the connections. (Photo by Linda)

Routing coaxial cable into the cable entry box from the tower and the basement and making the connections. (Photo by Linda)

We had already routed a 75 ohm video cable from our bedroom TV to the sump pump room in the basement.  I selected a suitable length of this same type of cable from our existing inventory, connected it to the other side of the power inserter, and routed it through the back of the CEB into the sump pump room where Linda guided it.  Conveniently, I had a double-ended F-female barrel connector designed to connect together two cables with F-male connectors.  I plugged in the AC power adapter for the power inserter, which was already in the sump pump room, and we went upstairs to see if we were receiving any TV stations.

We set the ‘Source’ on the TV to ‘Antenna’ and did an ‘Auto Scan’ for digital channels only.  There are very few analog TV signals still in use and the ones that are reside in the old VHF TV spectrum which our new antenna cannot even receive.  The scan found 58 signals, which obviously included the sub-channels.  Besides the main Detroit stations and the East Lansing PBS station we got other Lansing area stations and even a station from Flint.  The nice thing about digital TV is that if you get a picture at all it is very good.

There is a large TV tower at I-96 and US-127 on the southeast corner of Lansing so we were probably picking it up.  There are several TV towers SSW of Lansing about 35 miles that serve Battle Creek and may serve Lansing and Kalamazoo.  They are 50+ miles from us and I did not have the west antenna pointed in exactly that direction but it may have been close enough to pick them up.  Flint is at least 35 miles away straight north off the sides of both antennas so theoretically we should not have received any stations from that direction.  We will have to check the AntennaPoint.com website and confirm by station identifier what stations we are actually receiving.

Feeling good about our success so far we routed the coax for the cellular booster across one of the support arms that brace the tower to the house just under the east soffit.  We dropped it down next to the wall and brought it into the bottom of the CEB, replacing the hole plug with a rubber grommet.  Routing it this way kept it out of the way of future foot traffic, or lawn and garden work, in the space around/between the tower and the CEB.  I connected the cable to the lightning arrestor and coaxed it unto position inside the CEB.  LMR-400 is stiff and bending it sharply will damage it.

I connected one end of the 15-foot LMR-400 cable to the other side of the antenna arrestor and routed it into the sump pump room where Linda guided it into position.  I secured it to the ceiling, brought it down the opposite wall, put a large 180 degree bend in it, and attached it to the connector on the bottom of the cellular booster.  I turned it on and watched the lights blink for a while.  All three of us then started checking signal strength throughout both floors of the house.  All five of the ‘Alert’ lights went from blinking yellow, which means the unit is adjusting the gain on that band, to solid yellow, which is not described in the manual.  Since we had not yet registered the device with Verizon Wireless I turned off the booster.

Back out at the CEB I removed one of the hole plugs directly below the input of the Morgan VHF lightning arrestor.  We routed the coax for the 2m/440 ham antenna across the tower brace, down the wall, and around through the bottom of the box where I attached it to the lightning arrestor input.  I had an old piece of 50 ohm coax with an N-male connector on one end and a PL-259 (male) connector on the other end.  I attached the N-connector to the output of the VHF lightning arrestor and fed the other end through one of the 2″ conduits into the sump pump room where Linda routed it out into the ham shack.

We set our “Go Box” on the desk, plugged the PL-259 into the SO-239 socket on the back of the case, plugged it in to AC power, turned on the power supply, and turned on the radio.  The radio, an Icom IC-7000, came up tuned to the South Lyon (K8VJ) repeater.  I transmitted and successfully triggered the repeater, which is currently at a secondary site about 20 miles from our tower.  Mike went out to his car and used his mobile radio to verify that we could transmit to and receive from the repeater.  I had a lot of background static (white noise) so Mike switched modes and transmitted directly to our antenna.  The signal was full scale and full quieting.  I have a ground lug in the Go Box but did not have it connected.  I vaguely recalled that I had to ground the box at the previous house to eliminate a noise issue.  (The radio and power supply are grounded to the box.)

I switched the radio to UHF and it was set for the Novi repeater.  I listened but did not hear anyone transmitting so I transmitted, giving my call sign and a brief message, and then listened.  I did not get a reply even though Mike was also monitoring the Novi repeater so I switched back to the South Lyon repeater.  Mike indicated that I had, indeed, triggered the repeater and that a couple of other hams acknowledged hearing me in addition to him.  It thus appeared that I did not have something set up correctly on the receive side of the radio for the Novi repeater but the system (radio, cables, arrestor, antenna) was clearly working.

That was enough work for one day so we gathered up all of the tools and unused materials and put them away.  We offered to take Mike to dinner as a ‘Thank You’ for his assistance.  It was more than helpful to have someone on the ground who was familiar with tower operations.  We considered several dining options but opted for Olga’s in Brighton.  Linda and I had small salads, sans the Feta cheese, veggie Olga’s that were excellent, and curly fries without Tabasco sauce for the ketchup.  Warning:  As inconceivable as it may sound, Olga’s does not have any kind of hot sauce in its restaurants.  Mike had a dish with chicken in that he said was very good.

Mike headed home from the restaurant as did we.  We were tired but very pleased with what we had accomplished in the course of the day.  We celebrated our accomplishments by watching several programs on Detroit PBS, something we have not been able to do for more than two years.

 

2015/06/22 (M) Cable Me This

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We turned the air-conditioning off last night and enjoyed the fresh air, pleasant temperature, and lower humidity.  The overnight low was 58 which made for good sleeping.  We awoke to blue skies and what we thought would be a picture perfect Michigan summer day until Linda checked the morning news (iPad).  There was a story about a storm that moved through the upper plains yesterday and had a bead on Michigan for later today and this evening.  What had been a 10% chance of rain for today had been replaced by a forecast for strong-to-severe thunderstorms with the possibility of strong winds, large hail, and tornadoes.  Ahhhh, summer in Michigan.

Not ones to sit around and wait for the apocalypse we did what any sensible couple would do, I made coffee while Linda reheated the last of the Baked French Toast from yesterday’s brunch.  We had breakfast and then sat on the deck enjoying our coffee and contemplating the end of the world, or at least the possible destruction of our brand new roof.  But it’s insured, so “no worries, maan” as they say in Jamaica.  More coffee please.

We have a whole house generator that runs on natural gas so as long as a storm doesn’t damage it we can survive for a very long time without electric utility power.  Losing our AT&T Internet connection, however, would be a genuine hardship as that would require us to use our Verizon Mi-Fi (without the benefit of the new Fusion5s cellular booster which I plan to install on Wednesday) or go to Panera, McDonalds, or one of the libraries to get online.

Keith showed up around 10 AM to cut the grass.  We were hoping he would make it as we have not had too much rain this past week and the last few days in particular have been dry.  I think this is the first time this season he has been able to cut our grass without it being wet.  It looked nice when he was done.

I got a call from Phil Jarrell.  He had been successful in reaching Mike Fearer of Bid Rite Concrete on Mike’s cell phone.  Based on Phil’s description Mike was interested in looking at our tower foundation project and was expecting me to call so I did, using my cell phone, and this time I was able to reach him.  It turned out that the information about his business on the Internet is out of date.  He is no longer in Whitmore Lake but now operates from near M-59 and Latson Road, not far from us.  We agreed that he would stop by tomorrow at the end of the work day to look at our project.

I did not want to do a lot of heavy work today, as I was still a bit tired and sore, but I needed to mount two lightning arrestors in the cable entry box and mount the cellular booster in the sump pump room so I could figure out what coax cable lengths I needed and go get them from Scott Adams (AC8IL) at Adams Electronics in Wixom.  But first I called Mike (W8XH) to let him know I was planning on Wednesday for the tower work, assuming he was still available and the tower was still standing.

Cable entry box showing copper ground plane with Morgan lightning arrestors (lower left), control line arrestor (center top), and cellular and OTA TV arrestors (center).

Cable entry box showing copper ground plane with Morgan lightning arrestors (lower left), control line arrestor (center top), and cellular and OTA TV arrestors (center).

I determined that I needed two coaxial cables and ordered them from Scott by phone rather than take the time today to drive to his place of business.  They will both be LMR-400 with N-connectors on both ends.  One will be 50 feet long, for our 2m/70cm Diamond X50-N VHF/UHF base station antenna, and the other will be 15 feet long, to get from the cellular booster lightning arrestor in the cable entry box to the repeater (amplifier) in the sump pump room.  I will pick them up early Wednesday morning and install them.

One of the lightning arrestors was for the SureCall Fusion5s cellular booster system.  It has N-connectors on both ends, one of which is intended for bulkhead mounting.  It came with an angle bracket that fit over the bulkhead end and I used that to mount it.  I used the 2′ length of LMR-400 that came with the booster installation kit to position the lightning arrestor so the cable from the repeater could exit one of the 2″ conduits and bend around and connect to it.  LMR-400 is a low loss, 50 ohm impedance, coaxial cable that can handle high RF transmit power.  The cellular booster only has a 1 Watt transmitter but is operating at frequencies where energy losses in coax cables become significant.  To do what it does LMR-400 is just under 1/2″ in diameter.  It is fairly stiff and does not make sharp bends so cable runs and connections have to be carefully planned.

The other lightning arrestor was for the Antennas Direct DB8e OTA TV antenna and serves a dual purpose as the power insertion device for the tower mounted amplifier.  The coax cable for OTA TV signals is typically 75 ohm impedance RG-6 with F-connectors.  It is half the diameter of LMR-400 and much more flexible.  It is also typically used to receive low power signals and convey them in one direction; from the antenna to the TV.  Because we are 25 miles from the nearest TV tower and some of the towers are 50+ miles away, I ordered a signal amplifier to go with the antenna.

Ideally you want to amplify an OTA TV signal as soon as it comes out of the antenna and this amplifier does just that.  It will mount on the same tower leg as the antenna about two feet below the antenna feed point.  However, being an active electronic device it needs electrical power to operate.  There are two basic ways that could be done.

One way would be to have power wires, such as +5 VDC and DC Ground that are separate from the coaxial cable that carries the radio frequency (RF) energy.  The two OTA TV antennas on our bus are set up this way with three wires to supply power and control the enclosed rotor.

The other way is to provide DC power through the coaxial cable itself, which is how this amplifier is set up.  The nice thing about this arrangement is that the amplifier only has two connections and they are both coax connectors that can be weather sealed.  To get the DC power into the coax cable, however, requires a special device called a power inserter.  The power inserter, in turn, requires the coax to be split into two segments so there end up being four connections instead of two.  The power inserter for this amplifier very conveniently acts as a lightning arrestor as well, which is why I mounted it to the copper back plane in the cable entrance box.

By boosting what I presume will be weak signals from distant towers the amplified signal should be strong enough to survive the trip through the coax cable to the power inserter, from there to a 1-in/2-out signal splitter, and then through additional lengths of coax to the two TV sets.

After getting the two lightning arrestors mounted in the cable entry box I took a break for lunch and then went to Lowe’s for some supplies.  When I got back home I turned my attention to mounting the SureCall Fusion5s cellular booster (repeater amplifier) in the sump pump room.  The sump pump is in the northeast corner of the basement, which is also the northeast corner of our ham shack and office.  (The ham shack occupies the north wall and my desks occupy the east wall.  Most of the rest of the room is storage.)

I gutted and rebuilt this space, with the help of long-time friend John Rauch, before we moved in and created the large closet (small room) around the sump with insulated walls to contain sounds.  I installed an electrical sub-panel in this room to provide power to the office and ham shack desks and to an RV outlet by the pull-through driveway.  I fed the power for the RV outlet through the bond on the east wall just above the concrete block foundation and ran it underground to the far side of the driveway.  It was my intention from the beginning to mount a cable entrance box next to the power feed and have all of the coax cables and control wires for outside devices enter the sump pump room in the same manner as the power.

The ham shack/office walls are finished with T-111 exterior plywood with 4″ groove spacing and I finished the interior of the closet the same way as I knew I would eventually want to mount things to the walls.  I mounted the SureCall Fusion5s booster on the west wall of the closet about a foot inside the door and just below my eye level so I could see all of the connectors, switches, and indicator lights on the top and front of the unit.  It had four mounting tabs, two top and two bottom, that attached easily to the wall with short wood screws.

There is a duplex AC electrical outlet on that wall and one on the opposite (east) wall.  The power supplies for the cellular booster and OTA TV antennas will plug in to these along with the sump pump and the charger/controller for the battery powered backup sump pump.  One of the things I bought at Lowe’s were two outlet expanders which I installed in these two duplex outlets.  I also bought a switch with a pilot light to replace a single pole Decora switch that will eventually control the light in the closet.  I installed the switch but did not complete the wiring as I have to tie it in to the light fixture which requires me to cut the power to that circuit.   I would also like to replace the bare bulb fixture while I am at it but have not yet purchased a replacement.

Although it was late afternoon I decided to install the inside antenna for the cellular booster system and run the coaxial cable that connects it to the booster.  The antenna is designed to mount to a flat ceiling and provide a hemispherical coverage area below the plane of the ceiling.  I had previously figured out that if I mounted this antenna in the main floor hallway near the midpoint of the house I could connect it to the cellular amplifier using a 50 foot length of coax cable that came with the system.

The desired mounting location was opposite the door to the hall closet and the access to the attic is through the ceiling of that closet, so that was very convenient.  We emptied the closet, removed the clothes rod, and setup our six foot step ladder.  I removed the piece of foam insulation we currently use to seal the attic access opening and climbed up, flashlight in hand to check out what was on the other side of the ceiling.

Our desired location for the antenna was free of problems on the back side so I drilled a 3/4″ hole for the mounting stud and used a piece of rebar to poke a hole through the insulation for the coax cable that came out of the stud.  Linda fed the coax and stud through the hole and I put the retaining nut on the stud from the attic side of the ceiling.  The antenna is shaped like a coffee filter, is about six inches in diameter at the ceiling, and tapers down to about four inches in diameter about four inches from the ceiling.  The housing is white plastic and blends in well with the ceiling paint.

About four feet from where we installed the antenna is a chase that runs from the attic to the furnace room in the basement.  It appears that once upon a time something having to do with the furnace ran through this chase, such as the combustion air intake.  The combustion air is now drawn through the back wall under the deck and the exhaust goes out through the east wall of the basement via a double wall stainless steel flue pipe.  The chase is no longer used for furnace or other utilities although there are electrical cables to switches mounted in the bathroom walls and it still contained a piece of 4″ plastic pipe.

I positioned myself near the chase and guided one end of a 50 foot length of LMR-400 coax down through the pipe and through the hole into the furnace room while Linda held the roll of coax near the top of the ladder and unrolled it.  At one point the coax bunched up and Linda had to go to the furnace room and untangle it.  At another point the 4″ plastic pipe slipped through the bottom hole into the furnace room which caught me by surprise.  Once the cable was mostly fed through I routed it to the location of the antenna, connected it to the pigtail coax from the antenna, wrapped the connection in weather seal tape to keep moisture out, and secured it with a cable tie.

With the antenna installed Linda started preparing dinner while I dealt with the 37 feet of coax in the furnace room.  The furnace room does not have a finished ceiling so I had access to the areas above the suspended ceilings in all of the adjacent rooms.  In particular I was able to feed the free end of the coax above the ceiling in the office and into the sump pump room.  I secured the cable with plastic cable ties at two points in the furnace room to keep it away from the flue and various hot water pipes.  I had about 8 extra feet of cable so I made a large coil with two loops such that the free end came off the loop straight down into the connector on top of the booster.  I hung the coil on the wall above and to the right of the booster making for a very neat installation.

I took a shower to try and get rid of some of the fiberglass itch while Linda finished the dish she was making for dinner.  It was a complex Indian style dish with Basmati rice, garbanzo beans, Swiss chard, onions, and shallots, seasoned with salt, black pepper, cayenne pepper, cumin seeds, garam masala, fresh lemon (zest and juice), and fresh dill that Linda grew herself.  The house was filled with the aromas of all these ingredients for a couple of hours as they were prepared and combined into the final dish.  It tasted as good as it smelled with many flavor layers.

Our beautiful blue sky gave way to high, thin clouds through the morning and then to lower, thicker clouds during the early afternoon.  By 2 PM the clouds to the west were dark as I drove to Lowe’s in Howell and the first, heavy rains came as I got to the parking lot.  I waited a few minutes and they stopped so I got into the store without getting wet.  I had the same good fortune on my way back to the car.  The sustained rains came later in the evening along with a tornado watch.  We went to bed before 10 AM but did not go to sleep.  It took me a long time to write this post and we kept a watchful eye on the weather radar.  Although thunderstorms were forecast as a certainty from 1 to 5 AM with the possibility that they might be severe, we finally turned the lights out around 12:45 AM and tried to get some sleep.

 

2015/06/20 (S) Cable Entry Box

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We had not been to our local ham radio club breakfast the last two Saturdays because of the GLAMARAMA rally and a visit from Linda’s brother, Ron, and his wife, Mary.  The club was conducting VE testing today, rather than the usual 4th Saturday of the month, because the ARRL Field Day event is next weekend.  When we got to breakfast at 8 AM there were already a lot of people there and seven more came in after us.  We did not take a head count but it was somewhere between 25 and 30 people.  We also did not have our usual waitress but the substitute very efficiently got everyone’s order taken and delivered.

The 40 foot tower on the east end of the house with the old OTA TV antenna on top.

The 40 foot tower on the east end of the house with the old OTA TV antenna on top.

I checked with Mike (W8XH) and he is available to help us get the antennas mounted on the small tower on Monday or Wednesday, assuming I have the cable entry box (CEB) installed and all of the necessary coaxial cable on hand.  Getting the CEB mounted was my main goal for today, but not the first thing I had to do.  I called Chuck as we were leaving breakfast at 9:15 AM.  He was at home and suggested we stop by there and pick up a key to his shop.  He was working on landscaping when we arrived so we did not stay long and we were back home by 10 AM.  Linda finalized her shopping list and headed off to gather the things she needed to prepare tomorrow’s brunch.  I changed into my work clothes, gathered up the laundry, put a load in the washer, and got to work on the CEB.

The CEB is designed to mount on the outside of the house, allowing wiring to pass between the inside and outside of the house in a way that is weather tight and animal proof.  Coaxial RF cables and control lines enter through the bottom, connect to lightning arrestors in the CEB that provide a path to ground if/when needed, and then continue through the wall of the house and thence to various devices.  Those devices might include cellular phone signal boosters, Wi-Fi systems, TV sets, satellite receivers, personal weather stations, or amateur radio gear such as radios, remote antenna switches, and antenna rotators.

The general area on the east end of the house at the base of he 40' tower where the CEB will be mounted.

The general area on the east end of the house at the base of he 40′ tower where the CEB will be mounted.

Superficially the installation looked simple.  With the copper back plane removed there were four mounting holes, one near each corner, and two large holes in the back.  All we had to do was hold the box against the wall, mark the locations of the four mounting holes and the big cable entry holes, set the box aside, drill the holes, put the box back up and secure it.  Right.  Sort of, but not exactly.  Mounting the box took seven hours to complete.

The first step was to remove the copper back plane with the three lightning arrestors installed on it.  I took care of that yesterday.  The next issue was that the house has shiplap siding, i.e., the east wall where I needed to mount the CEB was not a flat surface.  I decided to use 1″ square aluminum tube, installed vertically along the back of the box at the outside edges, to span multiple siding boards, ensuring that the CEB would be plumb.  I also decided to leave the tube long enough to go all the way to the ground and use it to support some the weight, in effect creating legs for the CEB.  That was Linda’s idea.  She’s a smart girl and a licensed amateur radio operator.

The back of the CEB with one of the vertical mounting bars.

The back of the CEB with one of the vertical mounting bars.

We had some surplus pavers and garden blocks and I found one that was just wide enough to catch the bottom of the legs.  I also had some left over paver base material, which meant I did not need to make a trip to the store.  The paver base material was from a project long, long ago (in a place far, far away) and I used it to create a base for the foundation paver, which was approximately 18″ x 12″.  I leveled the base side-to-side and pitched it away from the house for drainage.

Yesterday I purchased a 3′ long aluminum tube at Lowe’s and a 4′ long tube at The Home Depot.  Three feet turned out to be a good length, so I cut a foot off of the 4′ tube.  Things then got trickier.  The positioning of the CEB was critical as the two large holes in the back were for adapters for 2″ plastic conduit.  I was going to have to cut 3″ diameter holes through the bond that would come out above the plate on top of the concrete block foundation.  In the chosen mounting location the bottom corner holes in the CEB would be below the siding.  The lower right leg would be at least an inch away from the concrete block foundation and the lower left hole would be in front of a basement window opening so neither of these were going to be screwed into anything.

The CEB in position on the east end of the house with the door open. The copper backplane has been removed.

The CEB in position on the east end of the house with the door open. The copper backplane has been removed.

I wanted the CEB anchored at more than two points so I decided to drill two additional holes in the back, one on each side, approximately half way between the existing top and bottom holes.  I measured the spacing between the top and bottom holes as carefully as I could.  I measured down from the top end of each leg a distance for the top holes that was just sufficient to make sure the door of the CEB was below the 2″ iron gas pipe that runs horizontally along the outside of the house.  I measured down from there for the new middle hole and the bottom hole.  I then drilled the three holes through each leg by drilling opposing sides.  I had to use a powered hand drill for this work as my drill press was stored behind a large pile of RV furniture that we took out of the bus and was inaccessible.

I attached one of the legs to the back of the box using two short bolts through the top and bottom holes.  I then used the middle hole in the leg as a guide and drilled through the back of the CEB.  I repeated this procedure for the other leg.  I drilled the holes in the legs as accurately as I could but they did not quite line up so I had to enlarge them slightly by using the drill bit like a router bit.  Not ideal, to be sure, but aluminum is relatively soft and it worked.

The east end of the house with two 2" holes for the conduit.

The east end of the house with two 2″ holes for the conduit.

I attached each leg to the back of the CEB using 1.5″ 1/4-20 bolts through the bottom corner holes.  I snugged these up but left them loose enough that we could move the legs.  The top and middle holes were located in positions that would allow lag screws to be screwed into the siding and underlying plywood.  We had to tilt the legs to get them under the 2″ iron gas pipe and then straighten them and set them on the foundation paver.  We had to do this multiple times but it was easy once we figured out how to do it the first time.

With the CEB in position I marked the location of the holes for four 3″ 1/4-20 lag screws.  We removed the CEB so I could drill the holes for the lag screws and then put it back in position and screwed it to the wall.  I marked the locations of the two holes for the conduit as best I could and then unscrewed the box and removed it again.  I used our 1/2″ Craftsmen corded drill for the 3″ hole saw.  I bought this drill in 1978, along with a lot of other Craftsmen tools, when we moved into our house in Farmington Hills.  I still have almost all of those tools and they all still work.

The CEB in position with both pieces of conduit through the back.

The CEB in position with both pieces of conduit through the back.

With the conduit holes drilled I cut one of the 18″ lengths of conduit in half, inserted the pieces into the adapters, and placed them in the holes.  We then put the CEB into position, got the adapters through the holes in the back of the CED, and tried to line up the holes in the legs.  The conduit was being forced up as it went through the bond, especially the one on the left, and would not allow the holes in the CEB to line up with the holes in the legs.  We took the retaining rings off of the adapters and removed the CEB, again.

I shortened the conduit pieces to approximately 5″ and checked the fit in the holes.  We wrapped two bands of adhesive backed foam weather-stripping around each piece of conduit and placed them back in the holes.  I then applied a bead of adhesive caulk all the way around each adapter at the wall.  We put the CEB in position for the final time, got the conduit adapters through the holes, snugged up the retaining rings, and put the four lag screws in.  After tightening the four lag screws I tightened the two bolts in the lower corners.  I then tightened the adapter retain rings and put the open end caps on.  The conduit ended up getting pulled back out of the wall a bit so I used the thin end of a 10″‘wood shim to try and force the caulk back into the gap around the conduit adapter.  It did not go back in very well so I will have to figure out something else to seal around the conduit.

The CEB was finally installed and very solidly anchored.  I got the copper base plate and remounted it to the five studs (four corners and one center) using some antioxidant/anti-seize compound on the stud threads.  The last step (for today) was to install the snap in covers for the 16 cable entrance holes in the bottom of CEB.  I also ordered 16 grommets and will remove the caps and replace them with grommets as I install devices and run their cables and wires into the CEB.

The CEB with the copper backplane installed and the three Morgan lightning arrestors mounted (two lower left, one top center).

The CEB with the copper backplane installed and the three Morgan lightning arrestors mounted (two lower left, one top center).

The two pieces of conduit open into the sump pump room (large closet) in the northeast corner of the basement just above the wood plate that sits on top of the concrete block foundation.  I plan to install the SureCall Fusion5s 5-band cellular booster (amplifier) in this room to keep it close to the CEB and because there is AC power available there.  I bought an installation kit for the Fusion5s that includes a lightning arrestor which will get mounted in the CEB.  I also bought an amplifier for the OTA TV antenna that will mount on the tower a few feet below the antenna.  The amplifier will get its power through the coax from a power inserter that doubles as a lightning arrestor and will be installed in the CEB with the AC power supply (wall wart) in the sump pump room.

I did not get these two additional lightning arrestors installed today.  By the time we got the CEB installed we were tired.  The high temperature was OK (near 80?) but the relative humidity was very high.  I was also very sore the whole time, especially my left knee, undoubtedly the lingering after effect of using the power chisel earlier in the week to remove thinset and mastic from the floor of the bus.  Getting down and up at least 50 times during the afternoon did not improve matters, but we got it done.

Even though she was also tired, once we reached a point where I could finish up alone Linda got busy making several food items for tomorrow.  In the midst of all that she heated some Amy’s Lentil Soup and made grilled cheese sandwiches with Diaya cheese or dinner.  Diaya makes an excellent non-dairy cheese that works well cold or cooked into dishes.

After dinner I returned a call from Butch to find out more about their new property and buildings, and discuss bus and ham radio projects.  One of the things Linda made was an apple pie so we stayed up until it was cool enough to wrap up.  That turned out to be 10 PM, by which time we ready to turn in for the night.