Can solid wires be crimped? Every time I have tried it, something went wrong. -- 73, Cecil, w5dxp.com _________________________________________________________________ All-in-one security and mainte
From: "Jim Miller" <JimMiller@STL-OnLine.Net> That would give me the longer wire connected to the center lead. Any advantage in doing this? We know from mobile shootout measurements that the farther
The thing that one has to do is to ensure that the unused antenna system is not resonant by accident. With one feedline disconnected and floating what you might wind up with is a open stub that reso
From: "Kelly Johnson" <n6kj.kelly@gmail.com> I get very strong noise >levels, especially on 80 and 40 meters whenever it rains. Nobody has mentioned the phenomenon of precipitation static which could
Here's one: http://www.palstar.com/manual_at1500dt.pdf -- 73, Cecil, w5dxp.com _________________________________________________________________ Talk now to your Hotmail contacts with Windows Live M
Also http://www.texastowers.com in the Dallas area. -- 73, Cecil, w5dxp.com _________________________________________________________________ Share your latest news with your friends with the Window
This same sort of crap was spewed when the single sidewinders, sounding like Donald Duck, started taking over the AM phone bands. :-) -- 73, Cecil, w5dxp.com ________________________________________
Seems one must admit that being baptized into the Morse code religion didn't do much to prevent cesspools from forming on 75m and other HF bands. -- 73, Cecil, w5dxp.com ____________________________
I once used Rohn 25 as a 40m vertical. I had the buried radials connected directly to the tower and fed the tower with a gamma match. -- 73, Cecil, w5dxp.com ________________________________________
My Rohn25G brochure shows a ten foot section with insulators in the middle of the legs, part number 25RG. Note says it *must* be guyed. Presumably one sinks 4 feet of this section in concrete leavin
Based on my experience with 40m loops, making the long side twice as long as the short side and feeding the short side in the center results in close to 50 ohms at resonance. -- 73, Cecil, w5dxp.com
I brought six ten-foot sections of Rohn 25G with me from AZ to TX when I retired. I intended to put up a 60 foot tower. But one of the sections has 11" spacing on the top instead of the 11.25" specif
I'm buying a house in Tyler, TX. The city planning commission told me I couldn't have any "structure" taller than 16' that wasn't attached to the house. Here's a document that I composed for them: Te
From: "R. David Eagle" <kb8nnu@yahoo.com> Subject: [TowerTalk] W2DU Balun Bead Source Howdy all...I am looking at constructing 2 W2DU bead baluns as described in ARRL Antenna book that uses 12 Amidon
That should work pretty well but I would recommend RG-400 teflon for the coax. -- 73, Cecil, w5dxp.com _________________________________________________________________ Your Hotmail address already
The #77 material used for w2du chokes is primarily resistive and thus dissipates power. Other materials are primarily reactive and not as lossy as #77. -- 73, Cecil, w5dxp.com ______________________
Here's some good information on toroidal ferrite materials. Apparently, the FT-240-K has been optimized for baluns. http://www.amidoncorp.com/aai_ferritecores.htm -- 73, Cecil, w5dxp.com ___________
Wow, I missed that. Jerry, you probably should change your "can't do that" statement to a "you'll be sorry if you do" statement. :-) A T-antenna turns the coax into a radiating element. One will cer
Although it may not be readily apparent, if you short the inner connector to the outer connector on a piece of coax, zero RF current flows on the inner conductor. All the RF current flows on the out
If you tell us what impedances you are presently seeing per band, someone can tell you how much adding 50 feet of 450 ohm ladder-line will transform those impedances. As an alternative, describe you