The B & W antenna was/is a T2FD. I have several rolled up in my shed, and all National Guard armories in Montana have them in use.
73 - K0PP On Dec 9, 2015 19:00, "Charlie T, K3ICH" <[email protected]> wrote: > I forget the name of it, (MAX-something) but there was an "antenna" > produced back in the 70's that consisted of a sealed center box with a coax > connector on the bottom and two eyes to attach dipole wires. The ads > claimed good match from 80 thru 10 M. It was basically a 50 Ω > non-inductive resistor across the feed line which also connected to the two > eyes. It was potted, so you had to destroy it to see what was inside. If > did in fact radiate a little and of course provided a decent match to the > coax. > > Another "slightly" more efficient antenna was produced by the venerable B > & W Company and sold as a wide band dipole. It's coax feed point had a > 6:1 balun which fed a fairly wide (12" ??) spaced 90 foot folded dipole > which was terminated with a 600 Ω *resistor in the center, physically > right above the center fed balun. We had one at Microlog and used it quite > successfully on the HAM bands as well as the Marine SITOR freqs, however, a > random 100 foot dipole fed directly with coax thru an MN-2700 generally > worked better. > > My point here is that there is a wide range of antenna types & performance > and they all work to some degree. > > Hard to beat a simple resonant dipole though. > > I agree with Joe. Nothing wrong with traps either, especially since > there's no 'tuner' required. > > 73, Charlie k3ICH > > > > * (Might be wrong on the value....seems it should be 300 Ω. Then again, > maybe the balun was 12:1) > > > ______________________________________________________________ > 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] ______________________________________________________________ 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]
