[Elecraft] PAR End Fed Half Wave antenna
Joe W2KJ
w2kj at bellsouth.net
Tue Mar 3 00:13:26 EST 2009
I've been using two PAR EFHW (End Fed Half Wave) antennas in portable ops
for several weeks now with excellent results.
I have the 20/40M and the 10/20/40M antennas that I use at the local park.
What I like about these antennas, besides the fact that they work very well
indeed, is that no transmission or support rope is required.
I get one end up in the air using the monofilament line on my wrist rocket
and tape the match box end to my operating table....a short coax jumper
cable to my K2 or KX1 completes the installation.
Using the monofilament on the wrist rocket to support one end of the antenna
obviates the need for a support rope of some kind so this along with the
transmission line is eliminated.
These end fed half waves appear to be ideal for backpacking ops since they
eliminate a lot of weight and bulk.
I also have played with an 88ft center fed doublet fed with 450 ohm ladder
line and this has also been an excellent portable antenna, although it
requires a transmission line and antenna tuner and at least one support rope
in the center and two shorter lines for the ends.
What is really neat about the PAR EFHW's is that once pruned and tuned no
antenna tuner is required so even more weight and bulk is eliminated for the
portable operator.
The PAR 10/20/40M job provides 3 bands of operation with no tuner,
transmission line or support rope...not too shabby.
We are supposed to warm up considerably hear in southeastern North Carolina
over the weekend....supposed to be in the 70's so I'll be in the park on
Saturday and perhaps on Sunday playing with these antennas...hope to meet
you on the air this weekend (CW of course!!!--grin)
73, Joe W2KJ (near Wilmington, NC)
I QRP, therefore I am
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