[Elecraft] Is it my KX3/antenna or is it lousy band condx?

Ron D'Eau Claire ron at cobi.biz
Sun Aug 13 14:08:49 EDT 2017


Sometimes convenience is more important than 3 dB of power. That is the case
for many installations, including those T2FDs on National Guard armories. 

After all, EVERY antenna is a compromise of some sort. For example, consider
the unidirectional Rhombic antenna, a staple of major commercial
point-to-point stations since Marconi's day strung among a large field of
telephone poles.

A Rhombic is basically bi-directional with two main lobes 180 degrees apart
in azimuth. But a resistor is added to make it unidirectional by absorbing
half of the transmitter power that would normally be radiated in the "wrong"
direction. 

73, Ron AC7AC

-----Original Message-----
From: elecraft-bounces at mailman.qth.net
[mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Ken G Kopp
Sent: Sunday, August 13, 2017 10:28 AM
To: jim at audiosystemsgroup.com
Cc: Elecraft
Subject: Re: [Elecraft] Is it my KX3/antenna or is it lousy band condx?

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.



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