I have a 64' aluminum 14"/18" tower with a steel hinged base. I have previously raised and lowered it several times with 16' ground mounted, back guyed gin pole and HD block and tackle, pulled by my
driven element, would lead me to believe it is an old Hy-Gain 3 element tribander. I'm not sure of the model number. Maybe a TH-3? Ray, W4BYG _______________________________________________ ________
The circumstance you describe could be quite dramatic when the antennas are combined, as the phase difference caused by different branch lengths between the two antennas can significantly affect the
Jim, K9YC's comments on how to use an antenna analyzer are a valid and a useful alternative to determining the length of cables. I would think for a long cable run more accuracy would be experienced
Dan, Great stuff! Thank you for taking the time to do this and share it with us. Your graphs and program are very instructive. Ray, W4BYG As K9YC said, coax VF changes as the frequency changes. The T
My experience is cold galvanizing applied with a brush is vastly superior to a sprayed application. I have tower hardware that was brushed with cold galvanizing over 35 years ago, which is still exce
When drilling into concrete or stone for mounting bolts, I many years ago learned a neat trick from an old time machinist, Grover Shank. He advised me concrete injected around bolts or hardware store
The molted, liquid sulfur, cooled to be very hard. Much harder than epoxy. I would think applying it over epoxy would weaken the grip of the sulfur on the intended surfaces. It might be a test hole i
I don't think chemistry issues were an issue here. My tower base and brackets were fabricated of construction grade steel that were cold galvanized. The bolts were galvanized HD. They were recommende
Noting one of Joe K8RI's valuable comments: "The rigs (except amps) are/will be on a 3000 watt UPS, voltage regulated, sine wave generator/line conditioner as soon as I replace the outlet. (kinda pri
To those who indicated an interest, I have you on a list. I expect to have more detailed information in the next few days. 73, Ray, W4BYG "The Republic can survive a fool for a president... It is les
I believe that is right. Further clarification: one would use any matched lengths of 50 ohm cables, when using a 50 ohm in/out power divider. 1/4 wave 75 ohm cables (or odd multiples thereof), would
Please ignore... Testing to see if AT&T is delivering mail from this list. Ray, W4BYG _______________________________________________ _______________________________________________ TowerTalk mailing
The URL: http://home.earthlink.net/~w6rmk/ferrite.htm States: Identifying Mystery Ferrites You've seen a big box of cheap ferrites at the surplus place. What kind of ferrite are they? What's their pr
How about moving to QTH.net? In the early 4 years I was admin for a dozen lists there and in the years since, I was never aware of issues like what's been going on here at Yahoo. Ray, W4BYG Gmail is
Is there any readily available design/build information for designing a modest height (35 to 46 feet) ham tower or mast, that would be close guyed using spreaders? This would allow guying with close
I've had good service life (professionally), out of black ties made by Panduit, or Thomas and Betts. Anything not made with carbon black will basically disintegrate outside in a year or so. Most of t
Additionally, I would connect the analyzer with a half wave length of coax instead of the 4 foot piece. The half wave length will reflect what the actual impedance at the antenna feed is. The 4 foot
I am reminded of a time when I was much younger and used a little "ham" ingenuity, which I may have to repeat this year at 76. I had a 72 foot aluminum, hinged base, guyed tower to raise using a 15 f