I noticed that Bencher/Butternut offers a set of elevated radials that offer multiband performance for 40-20-15-10. That is, each radial is resonant on all four of the bands so only four elevated rad
Any ideas or opinions on which of the 32' telescoping fiberglass masts currently available is the best? Jim W9TM _______________________________________________ See: http://www.mscomputer.com for "Se
"WOW! This is about as bad as it gets with lightning." No......not nearly as bad as it gets with lightning! Nobody was hurt at W0RTT. (Thankfully!) Good luck getting it all put back together Pete and
Bill: I generally think of a "roofing filter" as a first IF filter. See ON4UN's "Low Band DXing," 1.8.7 for an informative discussion on IF filtering. 73, Jim W9TM ___________________________________
Hi Mike: It would be better to rephrase your question from referencing radials under a R8 to referencing radials under any half wave vertical radiator. The best info I've seen on this is available at
In a message dated 9/18/2004 1:22:52 PM Central Standard Time, kq2m@earthlink.net writes: My yagis worked fine too, until I spent a lot of time computer modeling them over my terrain. I found better
Bob: We're truly looking forward to hearing results from your modeling efforts and believe we'll all benefit from your soon to be published works in this area. It's great you're willing to share with
Jim: A pair of mobile whips mounted as a short loaded dipole will probably be as good as it gets. Don't worry about directivity. At twenty feet on 3.8 Mhz, any horizontal antenna will be essentially
Wrong, if there is a mismatch at the antenna you can get reactance along the line that varies in sign and magnitude. Wrong! If there is no reactance at the antenna, there will indeed be no reactance
Pete: Tom's suggestion was to use a vertical radiator as tall as the proposed two mobile whips and substitute a good ground system for the lower whip. I heartily agree. Although a 35 x 35 lot is a li
Real Hams just pucker up, bend over and suck that darn solder out of the hole! Jim W9TM _______________________________________________ See: http://www.mscomputer.com for "Self Supporting Towers", "W
All: In these polarized political times, it is difficult to keep unrelated feelings regarding the presidential candidates from inappropriately becoming part of our ham radio discussions. But having s
Jim, You seem to be assuming you can't have an acceptable radial field in a suburban backyard. I'm in suburban Chicago and had an available space of only 60' x 40' for my radial field. I centered a H
Howard, If you're going to add some set number of additional radials, without question, adding more 130' radials would be more beneficial than adding 65' radials. For a fixed number of radials, longe
You'll find a good article on tuning elevated radials for quarter wave verticals on the Force 12 web site. Jim W9TM _______________________________________________ See: http://www.mscomputer.com for
Mass won't help for RF. You're looking to enhance conductivity over the ground surface area surrounding the tower, normally done with radial systems. Jim W9TM ________________________________________
No. I have both the R8 and 6BTV. Both are good performers. The R8 is more of a mechanical challenge to put up and keep up. The 6BTV is very ground dependent requiring a radial field if ground mounted
In a message dated 2/4/2005 7:23:09 PM Central Standard Time, jimsmith@shaw.ca writes: How about asking your municipality to lower your property taxes because your antennas have lowered the value of
Mel,, Thanks for the great information. It makes sense. Somehow, the conclusion that if your property taxes aren't promptly reduced after a so-called "value lowering event" occurs next door, then val
Lee, Congrats on working the 3B8 on 40! You sure were at the right place at the right time since he was calling cq and not already buried under dozens of QRO stations. But covering that distance on 4