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Search: Posts Made By: tripelo
Forum: Antennas 18-Apr-2020, 1:52 PM
Replies: 39
Views: 17,174
Posted By tripelo
Interesting idea, using RG8 with RG11 connector. ...

Interesting idea, using RG8 with RG11 connector.



Guessing from your image, probably RTV silicone would be a good candidate.
(Avoid silicone that contains acid, some use acetic acid, smells...
Forum: Antennas 11-Apr-2020, 5:27 PM
Replies: 39
Views: 17,174
Posted By tripelo
Thanks for the image. The location of the...

Thanks for the image.

The location of the single antenna may be a better location with respect
to multipath (likely ground reflections).

Best current guess; the problem is external and...
Forum: Antennas 11-Apr-2020, 1:35 PM
Replies: 39
Views: 17,174
Posted By tripelo
Reference 2nd and 3rd images in previous post: ...

Reference 2nd and 3rd images in previous post:

http://forum.tvfool.com/showpost.php?p=62791&postcount=8

Since the 'East Antenna Only' and the 'West Antenna Only' showed evidence
of phase...
Forum: Antennas 10-Apr-2020, 5:49 PM
Replies: 39
Views: 17,174
Posted By tripelo
The blue trace (antenna pair) shows a dip in...

The blue trace (antenna pair) shows a dip in middle of RF 8 spectrum.
That is indicative of two signals interfering with each other (out-of-phase).

An out-of-phase condition can result from:
...
Forum: Antennas 7-Apr-2020, 7:21 PM
Replies: 39
Views: 17,174
Posted By tripelo
Interesting project, Bob. Yes true. ...

Interesting project, Bob.



Yes true.

Many models that I have seen, especially at UHF, fail to account for everything that can affect results.
Partially because NEC2 makes it difficult...
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