[Lowfer] NC
Bill Ashlock
[email protected]
Thu, 21 Nov 2002 12:51:27 -0500
John A,
Bill sez >>fade conditions were such that I couldn't make out your full ID.
John replies>You've got to allow Bill a little slack, here. He puts these
whips way >up in the trees, and then watches the signals "fade" when the
wind >picks up.
OK mister smarty pants, hot shot, world renowned, grabber of small signals;
show us what YOU have from NC last night! <G>
The experiment for tonight, with your Engineering Approval, will be an A/B
comparison between my old amplified loop and the new tree probe (BTW, it's
not a whip, as such, but just a 20ft #12 wire looped over top of a 50ft high
limb, plus a wire to a pipe in the ground near the trunk of the tree). We're
talking the extreme of eloquent simplicity -like the Ashlock TX loop (plug
#52). <G>
I remembered that Bill B (That's Bill Bowers. Used to have Bills A through
D) had an article in the Lowdown some time back about matching different
lengths of 'longwire' receiving antennas to a coax line using a stepdown
transformer. Found it last night, and it's March '96. His shortest length
was 50' and he showed that a 4 to 1 ratio improves the signal approximately
8X over a direct connection to the line. This closely matches my use of a 10
to 1 ratio for an antenna length of 20ft.
Bill A
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