[Antennas] Eighty Meter mobile or portable

Wed Apr 23 14:22:22 EDT 2008

 Would it be worthwhile to consider an attaching bracket whereby the angle
between the two can be ~120 degrees rather than 180 degrees. Is this not
how an Inverted Vee antenna provides an ~50 Ohm impedance as vs. the 72 or
so Ohms of a dipole? 
Regards,
Dick - KA5KKT/4
-----Original Message-----
From: antennas-bounces at mailman.qth.net
[mailto:antennas-bounces at mailman.qth.net] On Behalf Of Ron Youvan
Sent: Wednesday, April 23, 2008 1:19 PM
To: a
Subject: Re: [Antennas] Eighty Meter mobile or portable
> Two "ham sticks" by any mfg. screwed into a double horizontal mount 
> similar to the MFJ model 347 make a decent single band portable dipole 
> when attached to a 1&1/4" OD pipe.

 They should be individually tuned to the same frequency, then adjusted
the same amount to trim them, and since they are now a dipole, would be best
fed with 72-75 Ohm line.
They can be mounted on anything, I have a 15 meter unit at the top of a 10
foot piece of 1/2 inch (trade size) EMT. (interior electrical conduit with
a cap on top, hose banded to a sewer vent pipe on the roof of my house)
-- 
 Ron KA4INM
 Youvan's corollary: Every action results in
 an unwanted side effect.
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