[RFI] Antenna Polarization Tests

[Bruce Jungwirth]

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 at 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 at contesting.com] On Behalf Of Tom Thompson
> Sent: Tuesday, June 13, 2017 12:19 PM
> To: rfi at contesting.com Contesting <RFI at 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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