Clay, It's listed indirectly on the older Rohn tower drawings I have here. For instance, on Dwg C-630625-R (for rohn 25), it tabulates: "Wind Load per lineal foot of tower at the horizontal wind pres
Clay, OK, I found my July '87 Rohn catalog, and extracted the following data: Area (square ft/lin ft) Rohn 25 - 0.254 Rohn 45 - 0.293 Rohn 55 - 9.334 Rohn 65 - 0.459 I presume this is effective area,
Oops, let's make that 0.334 for R55... geo data: Hope support. http://www.radiancorp.com/ROHNNET/rohnnet2001/catalog/html/gtowers.html for -- -- -- -- -- This message is for the designated recipient
I use Scotch 130C Linerless Splicing Tape, always available at electrical distributors and often available at Lowe's and Home Despot. 73, geo - n4ua suggestions -- This message is for the designated
You can, but you are really putting down just steel wire. The copper is the thinnest of flashes, just enough to keep the steel wire from oxidizing in protected environments. It won't survive outside
You might ask Stone Phillips; he was an anchor... 73, geo - n4ua boulders. them -- This message is for the designated recipient only and may contain privileged, proprietary, or otherwise private info
DB Products was bought by Allen Telecom (who also owned Antenna Specialists) back in the 90's; Allen was bought by Andrew a few years ago. I don't know whose tradenames have survived. 73, geo - n4ua
I am in central VA, and I see the same thing; on a warm, calm day, there will be perhaps a hundred (or more) wasps distributed along the length of the tower. They seem to be non-resident, and they ju
Well, the stuff that is, or has been, supplied with the connectors in the past is a clear silicon grease, sometimes with a Teflon additive. One trade name I have seen on the little snip-off-the-end-a
I meant "silicone" grease. 73, geo - n4ua -- -- -- -- -- This message is for the designated recipient only and may contain privileged, proprietary, or otherwise private information. If you have recei
Except that Jim did exactly what he said he did: he ran a qualitative power-handling test of some capacitors he had on hand. He apparently instrumented only one value, RF power on the source end, and
Yes, they stretch and they wear. Both of them are bad, because they change the "pitch" of the chain slightly (the roller-to-roller spacing), and that can accelerate wear on the sprockets. The chain i
73, geo - n4ua -- This message is for the designated recipient only and may contain privileged, proprietary, or otherwise private information. If you have received it in error, please notify the send
Ward, A coax pigtail technique I've used successfully for a long time is to avoid them - use a pair of connectors. But if the pigtail is unavoidable, I strip the coax jacket back from the edge of the
I just ran the 1959 Gotham V-80 price of $16.95 through the CPI-based cost-of-living calculator, and it gives $120.75 for the 2007 value. Now if we could just get 1959 solar flux numbers... 73, geo -
Doug, I'd stop by a local utility truck and ask those guys for help; they might know of a utility boneyard. On the other hand, your basic premise does raise a few issues. One, are screw-in steps harm
Andrew is now a division of Commscope. 73, geo - n4ua RF most LMR prevail. -- This message is for the designated recipient only and may contain privileged, proprietary, or otherwise private informati
It's a can and bottle opener, commonly given away at paint stores. 73, geo - n4ua disassembling storms in that interesting would antennas bent the the bent at 1st ended shorting side guy load 125mph
I recently was given a TB-3 that had been on a tower, where the mast had not been rotated in perhaps two years. The slight rocking, back and forth, in the wind had "fretted" pockets in the aluminum b
That's a 25 MHz wide chunk somewhere, not at 25 MHz... 73, geo - n4ua free considering of would would at be only the selling offered -- This message is for the designated recipient only and may conta