It's not a "con." It is a trade off that provides wide frequency coverage with a simple, sturdy antenna in return for a few dB of loss. Quite reasonable if you are the National Guard.
Vic 4X6GP > On 13 Aug 2017, at 20:28, Ken G Kopp <[email protected]> wrote: > > The antenna Jim's is referring to (below) is ... I believe ... better known > as > a "T2FD". In a case of conning the unknowing B & W ... and maybe even > themselves ... sold hundreds of them to the Army National Guard. You see > them hanging above every armory here in MT. > > >> Yes, but as noted above, not in a good way. :) There's a folded dipole >>> antenna made with a big resistor in the middle of it, the effect of which >>> is to "broadband" it by "swamping" the resonance, AND to burn half of the >>> transmitter power. In other words, the transmitter puts power into the >>> antenna, but half of it is wasted in that resistor. ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]
