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Re: [IRCA] EXPERIENCE WITH LARGE LOOPS
The quick answer is....use whatever size loop is convenient
Mark. You might lose a few dB in overall signal strength, but
signal to noise won't change, and I suspect you have plenty of gain
to spare in your receiver. On the other hand, 60' circumference
(not radius or diameter, hi) shouldn't be that big to put up in the
desert. My normal DXpedition ALA-100 is a 20' pole, 100' of wire
and a couple of pegs to make a delta. Unreeling the wire and
threading it through the little ring at the top of the pole takes
most of the time.
best wishes,
Nick
At 12:51 23-02-16, you wrote:
Finally in possession of a Wellbrook ALA-100 (sometimes us old folks
move slowly).
I'm intrigued by the idea of a large magnetic loop and seeking war
stories from anyone who has built these larger-circumference arrays.
Wellbrook suggest a 60-foot circumference is about as large as you
should go to take full advantage of the amplifier.
At our upcoming DesertDXPedition in Utah we plan on chasing signals
below 500 kHz. What I'm curious about is whether such a large loop
is necessary to give us a leg-up on long-wave. Might we do (almost)
as well with smaller antennas?
This group is extremely responsive and supportive, and I'm looking
forward to your thoughts!
Cheers!
Mark Durenberger
With the MN Twins Spring Training, Ft Myers FL
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