RFI
[Top] [All Lists]

Re: [RFI] Antenna Polarization Tests

To: Lee STRAHAN <k7tjr@msn.com>
Subject: Re: [RFI] Antenna Polarization Tests
From: Bruce Jungwirth <k0son@frontiernet.net>
Date: Tue, 13 Jun 2017 15:31:53 -0500
List-post: <mailto:rfi@contesting.com>
>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
> _______________________________________________
> RFI mailing list
> RFI@contesting.com
> http://lists.contesting.com/mailman/listinfo/rfi
> _______________________________________________
> RFI mailing list
> RFI@contesting.com
> http://lists.contesting.com/mailman/listinfo/rfi

_______________________________________________
RFI mailing list
RFI@contesting.com
http://lists.contesting.com/mailman/listinfo/rfi

<Prev in Thread] Current Thread [Next in Thread>