Thanks Hank I didn't really understand this until I drew a top view of a tower in AutoCAD. It was then easy to see that the torque arm offers little resistance, since it's in line with the guy and th
I just did some guy wire length calculations. I used a 100' Rohn 55 tower with a 12" torque arm at the top and a 80' guy radius. The guy wire length is 126- 6.28". I then rotated the tower 10 degrees
.con or .com? Just removed and ready to go. http://members.aol.con/kj6y/skip.html Skip, KJ6Y KJ6Y's Home Page _______________________________________________ See: http://www.mscomputer.com for "Self
Why would moving the linear loading further out and having longer elements change anything? Wouldn't it still be the electrical equivalent of a 1 1/2 wl dipole on 21 MHz? Yes, exactly, but the 240/23
I think the KT-34A has a 16' boom and insulated elements so just loading the boom would be a poor antenna. I think he's looking for actual plans on how to build a rotatable 40m dipole. The ARRL anten
It's probably too thin to weld and a mechanical clamp may be a better solution. Polyphaser makes a clamp (PT#58R-112S) that will attach 1 1/2" wide strap to a 5/8" ground rod. I have searched and sea
L44P is correct (UHF male for LDF4-50A) John KK9A L4UM (male) L4UF (female) Art KB7WW Norm Covey wrote: connectors. equivalent Weather Stations", and lot's more. Call Toll Free, 1-800-333-9041 with a
Gary, your callsign is at the bottom of all of your posts. I'm not sure why any ham would intentionally omit their call from a post. John KK9A / P40A What makes you think so? Some do, some don't. I r
The problem appears to be in the antenna. Are the received signals strong and does it appear to have a proper beam pattern when you rotate it? John (callsign) KK9A I posted the following message on t
The previous statement assumed that the antenna is set to the same band that you are transmitting on? Could the Orion be transmitting on a different VFO or memory by mistake. Perhaps you can test the
Since the GAP is a multi band antenna this does not prove that you are transmitting on the correct band. I don't think so. In previous tests, when I had the Ameritron antenna switch in line, I would
It sure would have been nice if people would post I'm sure Bernard WA4OEJ won't mind that I share with you on TT the final outcome and solution of the "Real Problem for Antenna Experts" thread that r
It sure would have been nice if people would post their solutions. It gives us a chance to learn and also informs everyone that the problem has been solved. John I'm sure Bernard WA4OEJ won't mind th
There are times during storms that my upper antennas have heavy static and the lower ones are much quieter. Perhaps your antenna is low and less prone to static than your buddies? John KK9A I can't s
I've purchased a number of items including Philystran from Gerald at Texas Towers and he's always been friendly to me. I've also been happy with their pricing. 73, John KK9A / P40A <snip> By contrast
There is no clockwise stop on the rotor and if you create a hard stop you'll likely strip the plastic gear inside the motor gearbox. If K3LR's suggestion is to have a chance of working, you would nee
Do you really need 120' tower? If you use the standard 120 degree anchor spacing you'll have less than a 53' guy radius, assuming that you can place the tower in the ideal location of your lot. You m
This thread should be dropped. It started five days ago. Hopefully the administrator will eventually solve the problem by removing geo888@cs.com from the list. Yup! Only when you post do you see the
Since the tower is part of the 1/2 sloper antenna system, the radiation is more omni directional than a full sloper. It's radiation pattern is similar to an inverted "L". I'm not sure if you can gain
That makes sense. I should have mentioned that the gain would be in the direction of the sloper. I just checked ON4UN's book and it states the antenna can have 10-15dB F/B over a poor ground and no m