Wouldn't feeding it up high in the corner like that at least eliminate the need for radials? 73, Mike www.w0btu.com _________________ Topband Reflector Archives - http://www.contesting.com/_topband
The only real way to tell is have one of each, and do many instant A-B comparisons over a period of time. I just have two 10'+ high elevated radials on my bottom-fed L. It seems to work "well", but I
The real key is "symmetrical", according to the stuff I re-read earlier today by Rudy, N6LF and K9YC. Mine aren't symmetrical. The N radial is straight; but the S radial has to zig-zag, because I'm t
Thanks, Guy. If I ever try this, it will very likely be on 80m first, and each half will be 1/4 wave. 73, Mike www.w0btu.com _________________ Topband Reflector Archives - http://www.contesting.com/_
A very respected authority on radial systems, Rudy Severns N6LF, has this to say about 4 elevated radials: "Since my QST article I've done some modeling to explore the sensitivity of a simple 4-radia
Here are the RFC part numbers, from http://www.ad5x.com/images/Articles/BiasT3amp.pdf "I finally settled on two J.W. Miller inductors that appeared acceptable. One was the 5250-RC 100 uHy inductor ra
I would like to know where to get those diodes! Right after I bought my last MFJ-259B, I e-mailed MFJ about buying a spare or two just in case. They never replied. Anyone have a Mfg. name and P/N? 73
I've worked all states on 160 including DC, but I can't (and don't care if I do) prove it to anyone. If the ARRL ever gets their LoTW stuff working on Linux ... 73, Mike www.w0btu.com _______________
Anyone know exactly where CS2C was operating from in the ARRL 160 this weekend? His report to me was Zone 14. Qrz.com confirms the zone, but it lists the op in Europe. 73, Mike www.w0btu.com ________
Ok, I see the error of my ways now. DX Atlas was displaying ITU zones, and not CQ zones. That makes sense now. Thanks. And of course, I meant the CQ WW 160 contest, not the ARRL. :-) 73, Mike www.w0b
I finally got around to installing WSJT-X. I haven't even read the manual, but it's decoding JT65 (and maybe JT9) signals on 160 and displaying callsigns just fine. You don't even have to tune the si
I did a Google search about 8 months ago, and I found what seemed to be an ideal liquid to use for this purpose. I forget what it was, but it had a low dissipation factor at HF and a good dielectric
Does it sound like an internal combustion engine idling, with little change in sound or frequency over time? I hear that from time to time and have no explanation for it. 73, Mike www.w0btu.com _____
The last ice storm surely would have taken down my 160m inverted-L, had it not been for the counterweight at the end. (It's made from #16 THHN, not very strong.) The pulley did not completely ice up,
Need heaters inside the elements, at least towards the ends, that can be turned on to melt the ice. Where there's a will, there's a way to do that. 73, Mike www.w0btu.com _________________ Topband Re
w0btu.com/Optimum_number_of_ground_radials_vs_radial_length.html Check the links on that page to N6LF, Rudy Severns' pages. His work has been called the gold standard of radial science. 73, Mike www.
There's a contest in progress --the ARRL Int. DX CW-- but you wouldn't know it from listening on 160. Where is everyone? The only two stations on 160 calling CQ TEST are K3LR and W3LPL. 73, Mike www.
I didn't notice that the K index jumped to 5 until after I posted this. That doesn't help. But the 3 or 4 stations that I hear calling CQ are quite strong (S9+) in SW Missouri. W3LPL is S9+, but he h
I kind of thought that might have been the case. :-) Anyway, the band is much better now. I've been hearing Europe and SA. 73, Mike www.w0btu.com _________________ Topband Reflector Archives - http:/