The answer is: “It depends.” In a perfect world, no power would be
transferred. The number I see most often for the real world is 20db.
Chuck W5PR
Sent from Mail for Windows 10
From: Peter Laws
Sent: Sunday, January 29, 2017 12:13 PM
To: vhf contesting
Subject: [VHFcontesting] Attenuation from polarity mismatch (Re: C6AFP SixMeter
Beacon
On Sun, Jan 29, 2017 at 10:38 AM, Buddy Morgan via VHFcontesting
<vhfcontesting@contesting.com> wrote:
> Of course, I am horizontally polarized.
Undoubtedly, that makes a difference ... but how much?
Does anyone have a scholarly (or even semi-scholarly, e.g., QEX, QST)
citation for the amount of attenuation? I've heard anywhere from 3 dB
to 30 dB (and WAGs going even higher). 3 to 30 dB doesn't seem like
much to a lot of hams because they don't understand dB, but that's
2x(ish) to 1000x ... so I'm thinking one of them is wrong ... and
since we all routinely hear signals of the other polarity I'm thinking
it's closer to 3 than 30 ...
Someone has surely done actual research on this. So where is it?
--
Peter Laws | N5UWY | plaws plaws net | Travel by Train!
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