[Antennas] 160 loop

[Ray Brown]

----- Original Message ----- 
From: "Rick Gouge" <rickgouge at shaw.ca>



> Hello. I am new to the list. Does anybody have recipe for a 160 meter loop with the 75 ohm stub? Rick VE7RiK

  Greetings and welcome to the list. :-) 

  Our radio club runs a "SkyWave" antenna during Field Day here in the States.
It's optimized for 80m CW, but it could run on 160m as well.  But I'm trying to
figure out what the 75 ohm stub would be on it. On ours, we feed it in the centre
of one leg with ladder line to a tuner, but it almost always runs direct pass-thru
because the SWR is below 1.4:1 on the CW section, and I think it creeps up
to 2:1 in the phone section of 80m.

  It's relatively easy to make, you just need lots of real estate, with trees far enough
away to give you room to construct it. We get ours tossed up in position with about
3 hours of labour between about 3 of us. We hope to trim that down with so-called
antenna launchers that shoot a piece of PVC attached to fishing line over the top
of the trees. :-)  (Our club is trying to market them now.)

  Anyways, a SkyWave for 160m would require about 320m of wyre, preferably
the copper-clad steel wire for those long 80m runs between the corners. But it's
just a big square of wyre antenna, if viewed from overhead.

  Is that what you had in mind? :-)


            Ray, KB0STN
            incoming president,
            Joplin (MO) Amateur Radio Club