The selsyns I used to have had 5 wires, 3 stator and 2 rotor. The stator was a 3 phase winding and was not connected to the rotor. I remember this clearly because once in the 60s at a UBC dance I dro
http://www.texastowers.com/philly.htm Javier Lopez wrote: Hi, I am looking for a different alternative than steel to be used as guying systems. I have heard about Phillistran, but no experience with
http://www.rohnnet.com/ James Brennan wrote: ke4jrv I am looking for some engineering specs forRohnn 25g tower. I need the base diagram and wind load ratings that are the most up to date. I need to s
Pete, Try http://members.cox.net/pc-usa/station/ground0.htm 73, Jim Smith VE7FO Pete Smith wrote: Fascinating, Frank. I tried going back up the URL tree, and eventually found myself at a page for Pre
Oohh.... a fascinating topic. A minor quibble. The low power category is between 5 and 150W, not 100W, so maybe 4A per radio might be a better number if you're running radios capable of 150W like the
Any idea where you found this calculator? I tried a search for rohn tower calculat and got 4 hits - none useful. Sure would like to play with it. 73 de Jim Smith VE7FO Alan NV8A (ex. AB2OS) wrote: So
How about asking your municipality to lower your property taxes because your antennas have lowered the value of your property. Once they finish laughing you should get a nice letter turning down your
It just occurred to me that you can easily prevent the lightning from hitting the tower at all by the simple expedient of equipping the golfer with a 1 iron. I believe that it was Chi Chi Rodriguez w
The devil in me just has to ask. If an HOA looks like it's about to die, is there any way of getting oneself, or a legal entity set up for the purpose, declared to be the HOA? Just think, someone bit
I would think that, in view of the existence of readily available cable which is clearly intended for the purpose, you should use 5 cats attached by CAT5 cable. 73, Jim VE7FO ________________________
Have a look at http://www.n6rk.com/falling_derrick_gme/falling_derrick_gme.html for a lot of info on the falling derrick method. We used this method on FD to erect 40 ft of Delhi tower with a TH3 on
"WOLF"???? Good heavens, TOM will be spinning in his grave. You might be wise to correct the spelling lest the instrument seek you out and apply the appropriate remedy for this sacrilege :-D Jim VE7F
Martin, Your post brings back memories I thought I had banished. Many years ago I decided to insulate the floor of my mother's house. So, there I was, lying on my back on the dirt in the crawl space
I put an AlfaSPID turning a C4SXL on an AB577 a couple of times on Field Day. Worked FB. 73 de Jim Smith VE7FO _______________________________________________ See: http://www.mscomputer.com for "Self
I want to end-feed a half wave vertical so I can get a nice low angle of radiation. The base of the antenna would be about 0.05 to 0.10 wavelengths above ground. It looks like the antenna impedance w
First, I want to apologize for taking so long to respond to everyone who put time and thought into helping me with my question posted Jun 1/05. It is very much appreciated. June was pretty much a los
Merlin, check out http://www.k1ttt.net/technote/airbalun.html HTH de Jim Smith VE7FO _______________________________________________ See: http://www.mscomputer.com for "Self Supporting Towers", "Wire
Steve, I'm no expert on this stuff but I'm sure I have seen TT posts which say that silver soldering is FB for this application. So, wrap the strap around the ring and silver solder it. Takes a LOT o
Hi Dick, See if you can find a copy of +++++++++++++++++++++++++++++++++++++++++ Physical Design of Yagi Antennas -- by Dr. David B. Leeson, W6QHS. Packed with information on how to design or reinfor
2nd attempt to send this Hi Dick, See if you can find a copy of +++++++++++++++++++++++++++++++++++++++++ Physical Design of Yagi Antennas -- by Dr. David B. Leeson, W6QHS. Packed with information on