I thought stranded came out the winner in the great wire discussion here a few weeks ago. I remember the THHN from Lowes part, but I forget if it was stranded or solid. BTW if the weather is bad enou
The pot is accessible beneath a bottom plate on the gearbox. Unless you suspect a mechanic problem with the gears, do not open the gear box. Before disassembly, put the rotator at North, or some know
Good morning, 28 years ago I buried a 1.5 inch schedule 40 PVC pipe in the ground and ran some low loss coax and a three wire electrical control cable (14-2 house wiring cable). The 14-2 is used to o
Thanks everyone, I think I have enough info now. The voltage on the 14-2 is strictly 12V, low current DC for running relays to switch phase on my four square array. Dave _____________________________
Patrick and all -- Patrick makes a very good point and I am planning to remove both the old coax and the 14-2 wiring. To clarify (again) there was never 117VAC on that 14-2. I used it because it is a
I have a Rohn 55 tower that rotates. I recently built a rotary dipole for 40 meters. It is full size. The center section tubing is 1.625 inches in diameter. It is a split construction. I feed it with
Very good questions, Ron. I will attempt to clarify. The antenna always hangs or bolts to the tower horizontally. To raise it, I strung a trolly cable to a point well out from the base of the tower.
OK Grant -- very nice work. Those dimensions are pretty close to what is up there. I have read the many inputs from various people -- all very thoughtful and really informative. I have decided to mod
Good morning Craig, You make several good points. As I measured the dipole hanging away from the tower, there was 100 feet of RG8X used as a feedline. It is known to be good and I check loss often. I
John -- sorry if I wasn't clear on my answer. I measured the SWR with the test coax, no balun, through 100 feet of RG8X, known to be good. It showed the lowest SWR at 7200, 3.0:1. It rose to 5:1 at t
My mistake. The coax in the choke is RG142, MIL-C-17 27478 from Harbour Industries-- good stuff. Dave _______________________________________________ _______________________________________________ T
The recent thread concerning a rusted nut on a torque limiter caught me completely off guard. I have run a 200 foot rotating Rohn 55 with a Rotating Tower Systems chain drive without a torque limitin
FYI -- The 40 meter dipole is coming down today. It must be redesigned for strength. It bent slightly in a wind storm Tuesday evening. I will rebuild it, change the mounting method and put it back up
There is a saying, attributed to our Native American culture that says, "Do not criticize another until you have walked a mile in their moccasins." Another piece of advice comes to mind. "Engage brai
Good afternoon, A few weeks ago I posted a request for advice and information on pulling cables through underground pipe. A lively, detailed and educational discussion ensued. Yesterday, I put all of
Has anyone suggested to just tunnel under the wall? I don't know the construction of that particular wall, but stone fences in Kentucky are just dry stone stacked. A sharp stick would poke a hole und
Simple thimbles will work also. I believe, since the new philly can be worked like a regular cable. My philly guys are the old style with epoxy potting at the end fixtures. I just used thimbles there
I've never fretted about how much to use. I have used rags, bare fingers, and an old toothbrush to apply it. If there is excess, it builds up as you insert the element and you wipe it off. I have nev
i use a trolley cable system to erect antennas. A manual crank winch with rachettting pall is mounted on the back of my tractor. I tension the cable with the winch and suspend the antenna from a pull
Any hams in Florence, Italy? I am in the bar at the Grand Hotel Mediterrano for the next hour. Dave, K4TO _______________________________________________ _____________________________________________