Posted by
EricJ-2 on
Feb 01, 2006; 5:34pm
URL: http://elecraft.85.s1.nabble.com/PAR-antenna-on-80-meters-tp386245p386246.html
I sometimes do that to use my TH7DX on 30m. The K1 and K2 have no problem
loading it on 40m and 80m too, but it doesn't hear or radiate very well.
Still it's usable in a pinch.
Eric
KE6US
www.ke6us.com
-----Original Message-----
From:
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[mailto:
[hidden email]] On Behalf Of Grif
Sent: Wednesday, February 01, 2006 7:41 AM
To:
[hidden email];
[hidden email]
Subject: [Elecraft] PAR antenna on 80 meters
Greetings, all-
Here is a small tidbit of possibly useful information in this period of low
sunspot activity, which probably everybody but me knew anyway.
The PAR EndFedZ is a popular backpacking or portable semi-QRP (25 watts
maximum) multi-band antenna covering 40, 20, and 10 meters. (It will also
cover 30, 20, and 10 if the wire "stinger" is shortened.) Being a half-wave
antenna, no radials are needed.
I found that if both sides of the coax coming out of the PAR matchbox are
tied together and treated like a random wire, the internal tuner in my Icom
IC-703 would match it on 80 meters, with a resulting SWR of 1.2. I used
about a 34 ft. counterpoise with this setup. I'm looking forward to seeing
if the internal tuner in my KX-1 with the forthcoming 80 meter board will
also match it.
The IC-703 was unable to get a match on the WARC bands or on 15 meters.
Sorry. I think a more robust tuner could probably match those bands as well.
An experiment for another day.
73, Grif, KF4JG
Sorry, the previous attempt to send this had unacceptable formatting
embedded in the text. I don't know how much went through, but some of it got
bounced.
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