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Old July 11th 17, 10:39 PM posted to
Pat[_7_] Pat[_7_] is offline
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Default Magnetic receiving loop theory

On Tue, 11 Jul 2017 10:11:11 -0700, Jeff Liebermann

On Tue, 11 Jul 2017 07:35:35 -0400, Pat wrote:

Sounds good. As an aside, I just watched a youtube video of someone
trying out one of these magnetic loop antennas. With his particular
set of circumstances, it reduced the noise floor on 80 meters

Compared to what other antenna? He probably reduced the received
signal strength by the same amount leaving the SNR unchanged.

Not really. Both signal and noise are reduced, but the SNR must be
better because you can hear an SSB conversation with the loop that is
not there with his sloper. Search youtube for MFJ-1886 and N9BC.

Of course, there is no mention of antenna patterns. Maybe the QSO he
was listening to is in a null or his other antenna. Not enough info
to really tell.