A loop has directivity but if the noise is from the same direction as the
desired signal it doesn't help. However if the noise is 90 degrees off then
a loop will help.

--
73
Hank WD5JFR
"Bob Miller" wrote in message
...
On Tue, 13 Jul 2004 10:56:16 -0400, "- XC -" wrote:


"Crazy George" wrote in message
...
William:

Look carefully at what you wrote. Couldn't you have achieved the same
results by turning the RF gain down, or shortening your existing
antenna?
Noise down, signals down also? WWV gone? Hmmm. Suspicious.

I'll answer for him, ...No and No.
Receiving loops aren't about signal strength they're about improved
Signal
to Noise **Ratio**.
Not hearing 20 MHz WWV at the hours he said he was listening (late eve?)
means nothing as that band folds late at night or propagation simply may
not
have been favoring a path between them at that time.
Try some Google-searching for receiving loops, lots of info.

XC



Dumb question: how do you reduce noise without reducing the strength
of the signals you want to hear? How does the antenna know which is
which?

What makes some antennas "quiet."

Bob
k5qwg