No, it's not a virus. It's a former member of the list who no longer has an AOL account. We had exactly this problem on another list to which I subscribe. It was a PITA to track down, but the managed
As they vote for "small government," low taxes, and a free lunch. That small government includes smaller law enforcement, smaller education, smaller FCC (especially less enforcement), etc. Jim Brown
ARE YOU BRAIN DEAD? Did you not see two posts here from the ARRL attorney who represents the ham in this case telling us to LAY OFF? _______________________________________________ See: http://www.ms
Not with a half sloper, but with some half-wave dipoles sloping off a tower. I specifically chose them over the half-sloper because modeling in ON4UN's book predicted a somewhat lower angle of radiat
Last winter, I bought an ARR mast-mount GaSFet preamp for 6m. It has now failed for the fourth time, and I'm about to give up on it. Each time, ARR has repaired it under warranty. Several times I des
Thanks, Steve. If that is true (and I don't doubt you), why would ARR not say that on their data sheet and/or instruction sheet (and why would they include a sensing circuit in the amp that doesn't w
I bought the 160 watt model. Jim _______________________________________________ See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless Weather Stations", and lot's more. Call Toll Fr
Apology accepted, although not needed. :) I appreciate the input. The failure mechanism was the FET, not the relay. I appreciate all of the responses on this, nearly all of which make sense. But if,
Any good switching system, including ARR's, is designed with hang time to accomodate SSB and even CW. When it works, it works very well, and the last time it was fixed it ran well for 3 months and a
I can't say that I've ever heard this. You speak of this as if it is a keyed carrier. What frequency is it on? Always the same, or does it move? What is the duty cycle -- mostly on, mostly off, etc.?
The definitive book on this is by Tsaliovich -- "Cable Shielding For Electromagnetic Compatibility." FWIW -- lots of the high futility folks use double shields and quad shielded cable because they ar
Also count on having to send the VHF ICE filters back for realignment. I bought two -- one for six meters and one for two meters. Both were significantly out of alignment (a couple of dB loss in the
I am a HUGE fan of fan dipoles. I regularly build them with three in the fan. They tend to get pretty big and clunky when you go more than three, but that doesn't mean you couldn't build a perfectly
I certainly did not belittle you nor anyone else. I did suggest (indirectly) that you were being lazy, expecting others to do your work for you. I did give you a bunch of specific suggestions about h
You should really be asking this on the RFI list, but I'll take a stab at it. I use my Kenwood TH-F6A when I need to do some RFI snooping. It has a built-in loopstick antenna that works fairly well o
Several issues. First, I wouldn't worry about the wind loading. These are relatively small antennas. But they might get in the way of your climbing the tower, so I would be concerned about how they a
Actually, the impedance of a bead choke can be found on the mfr's data sheet as a graph of series equivalent R and X vs frequency. Both R and L are functions of frequency. At the risk of sounding lik
I was luckier. My EE class (Univ of Cincinnati, 1964) was the last that was required purchase the complete 5-volume set of RCA tube manuals. We used them extensively (to study load lines), but we als
Modest amounts of second harmonic distortion are perceived as "warmth." There are even EFX generators that contain a second harmonic generator, and the control for it is called "warmth." When left to
With a good Scotch or a rich Belgian ale. And for Miles (or Getz), with a consenting adult. :) But seriously -- the distortion is often added at the recording/production stage for artistic effect. On