Perhaps somebody can convince Mike Stahl or Martin Jue to buy the remanants of KLM and at least keep the spare parts alive. Or maybe the rotor doctor? Mike, W4EF........... Hmmm... You're so right, D
Richard, I had a similar experience with Rohn 25 accessories that I purchased about 6 months ago. I had to re-drill the bearing templates in the BAS25G top section. This problem was common to two pie
Gerald, What is the bearing of the line between the two towers? You might be able to use this a "boom" for a wire beam, or for suspending a bobtail curtain. KS8S did the latter back in the 80's with
Gerry, Commercial broadcast installations typically put a chain link fence with concertina wire around their guy piers in order to deter vandals. Although this is a pretty good deterrent, it isn't go
Jeff, If you still have your AEA analyzer handy, place a 200 ohm carbon resistor between the output screw terminals of the balun (I assume you are using the KLM 4:1 ferrite balun and not the coax bal
Hi Jon, A couple of suggestions come to mind. (1) How about putting some radials at the base of the Glenn Martin root tower to form a shield between the antennas and the shack? I recall a story that
John, First of all, a quarter dB of loss in the tuner would be 50 watts of dissipation when running 900 watts total output, so it doesn't take much loss to produce noticeable heating. As far as the l
I am in the process of preparing a used KLM KT34XA for re-installation on the tower. While I was cleaning-up and inspecting the elements, I noticed that it was difficult to get the shorting straps in
The following is a summary of the replies to my query on loose KT34XA shorting straps. Thanks to everyone for all the good information. I now have what appears to be at least four good fixes to chose
I had the same experience here in Los Angeles. Although the galvanizer didn't mention EPA regulations, I was told explicitly that anything I brought in needed to be free of paint before it could be d
I am in the process of prepping a KLM 40M4 and KT34XA for reinstallation at our club station, and was wondering what the collective wisdom was on taping of element joints. When the antennas were init
I am interested permanently installing an AC extension cord between our club's shack and the base of the 40 meter antenna tower. The cord would be bundled with the above ground coax and rotator cable
Does anyone know of a distributor for muffler style zinc plated U-clamps with the double edged saddles (Dorman or Clamps Inc brand). McMaster Carr and MSC only carry the guillotine style (single edge
Bravo Eric, I am glad someone took up the task of doing this kind of modeling work. One question though - did your modeling assume uniform flat ground, as I wonder if this is too ideal an assumption
A good example of what Scott is referring to can be seen by imagining a pair of simple bandpass filters each of which is nothing more than a single parallel LC tank. If you imagine that these two fil
I have a spreadsheet here for the 34' 25G tower that I had in Florida. My tower held a CC A3 (4.7 sqft) and was bracketed at around 8'. If I use this model and change the windload to 2.5 sqft (per th
Kurt, The 4.7 sqft for the A3 comes from their specs, but as you point out, its not clear whether or not this projected area or effective area (what I called equivalent flat plate area). Just to reit
Anyone know where I can find cold galvanizing spray? I struck out at Home Depot this evening. Thanks, Mike, W4EF................. -- FAQ on WWW: http://www.contesting.com/towertalkfaq.html Submission
The absolute signal levels in dBm that are published in the comparison report are consistent with pattern look angles that are significantly attenuated relative to expected boresight gain. In my mind
Guy, See my comments below. Mike, W4EF............ Hi, all. I suppose that all of the material that could be abstractly related to this comparison would be a book. Practically, though, do they actual