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Re: [IRCA] Antenna experiment
- Subject: Re: [IRCA] Antenna experiment
- From: "Ira Elbert New, III" <ien3@xxxxxxxxxxx>
- Date: Sat, 17 Sep 2005 21:58:53 -0400
I made a new loop antenna today, and initial results are very encouraging.
It's getting dark with a thunderstorm approaching, so I ran out of time.
A version of the antenna can be seen most of the way down this page:
http://www.stormwise.com/page3.htm
I bought four 10' lengths of 3/4 copper tube and four elbows. Set it into a
square and soldered seven of the eight joints. I have a tuner I made years
ago using a toroid and air variable capacitor, and an output link of a few
turns. The copper tube was slipped through the toroid, and a coax run to my
truck radio through an adapter. Tuned to a few stations and could get stuff
totally inaudible on the normal truck antenna. For example, the 640 station
near Springfield, MA was not heard on the whip. With the loop setup it was
listenable with some noise from adjacent WPRO which is a 5kw non-d local.
If I have time tomorrow, I'll do some further work. I hope to use a second
toroid and see if I can link couple to the loop with the tuner next to the
radio. I also want to put it in the clear and see how well it nulls.
We shall see!
Craig Healy
Providence, RI
And then you'll build one for those of us on the list who are technically
challenged and ship it to us at a nominal cost...
=0
Bert New
Watkinsville, Georgia
Proudly Serving You Since 1964!
<BLOCKQUOTE style='PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #A0C6E5
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From: <i>"Craig Healy"
<bubba@xxxxxxxxxxxxxxxxxxxx></i><br>Reply-To: <i>Mailing list for the
International Radio Club of America<irca@xxxxxxxxxxxxxxxx></i><br>To:
<i>"Mailing list for the International Radio Club of
America"<irca@xxxxxxxxxxxxxxxx></i><br>Subject: <i>[IRCA]
Antenna experiment</i><br>Date: <i>Sat, 17 Sep 2005 19:01:53
-0400</i><br>>I made a new loop antenna today, and initial results are
very encouraging.<br>>It's getting dark with a thunderstorm approaching,
so I ran out of time.<br>><br>>A version of the antenna can be seen
most of the way down this
page:<br>>http://www.stormwise.com/page3.htm<br>><br>>I bought four
10' lengths of 3/4 copper tube and four elbows. Set it into a<br>>square
and soldered seven of the eight joints. I have a tuner I made
years<br>>ago using a toroid and air variable capacitor, and an output
link of a few<br>>turns. The copper tube was slipped through the toroid,
and a coax run to my<br>>truck radio through an adapter. Tuned to a few
stations and could get stuff<br>>totally inaudible on the normal truck
antenna. For example, the 640 station<br>>near Springfield, MA was not
heard on the whip. With the loop setup it was<br>>listenable with some
noise from adjacent WPRO which is a 5kw non-d local.<br>><br>>If I
have time tomorrow, I'll do some further work. I hope to use a
second<br>>toroid and see if I can link couple to the loop with the tuner
next to the<br>>radio. I also want to put it in the clear and see how
well it nulls.<br>><br>>We shall see!<br>><br>>Craig
Healy<br>>Providence,
RI<br>><br>><br>>_______________________________________________<br>>IRCA
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list<br>>IRCA@xxxxxxxxxxxxxxxx<br>>http://dallas.hard-core-dx.com/mailman/listinfo/irca<br>><br>>Opinions
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irca@xxxxxxxxxxxxxxxx<br>><br></font></BLOCKQUOTE>
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