Bruce,
True, but that is the polarization you see from an RFI source in a
residence.
On 6/13/2017 2:31 PM, Bruce Jungwirth wrote:
>From the pictures, the testing was not in free space, nor in an RF test
chamber, therefore, there will be reflection both from the ground as well as any
nearby objects which will effect the polarization of signals at the receiving
antenna.
Sent from my iPad
On Jun 13, 2017, at 2:42 PM, Lee STRAHAN <k7tjr@msn.com> wrote:
So Tom,
Am I reading your data correctly, I see only a 9.7 dB difference as the loop
is rotated from broadside to inline with the vertical source in the first two
columns of A and B. Or am I missing something? My Eznec models of loops show at
low angles a near perfect null for vertical polarized signals broadside to the
loop and a near perfect null for horizontal polarized signal inline with the
loop? As in your A and B tests .
Lee K7TJR OR
-----Original Message-----
From: RFI [mailto:rfi-bounces@contesting.com] On Behalf Of Tom Thompson
Sent: Tuesday, June 13, 2017 12:19 PM
To: rfi@contesting.com Contesting <RFI@contesting.com>
Subject: [RFI] Antenna Polarization Tests
Some of you have mentioned in the past about using a tuned loop for tracking
RFI. A question has sometimes arose about the direction of the null of the
loop. Larry Benko, W0QE, and I did some polarity tests using various
orientations of both the transmitting short dipole and a receiving loop and a
receiving short dipole. The results are shown here:
http://tomthompson.com/radio/AntennaPolarization/Antenna%20Polarization%20Measurements.html
73, Tom W0IVJ
PS Sorry for the wrong word before
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