[TowerTalk] Fwd: Polarization: Quad vs Horizontal at 50 mHz

[hanslg at aol.com]

 ... unlike tropos, where you can expect to see the polarization uneffected.

Hans - N2JFS

 


 

 

-----Original Message-----
From: Steve Hunt <steve at karinya.net>
To: towertalk at contesting.com
Cc: towertalk at contesting.com
Sent: Tue, Nov 9, 2010 3:56 am
Subject: Re: [TowerTalk] Polarization:  Quad vs Horizontal at 50 mHz


Over an ionospheric path the polarization is changed randomly and is 

time-variant. There is no advantage in trying to match (or otherwise) 

transmit and receive antenna polarizations.



Steve G3TXQ



On 08/11/2010 19:45, W0WOI at aol.com wrote:

> If Station A is using a traditional horizontal Yagi in contact with Station

>   B using a horizontal Yagi, via 50 mHz Sporadic Es or some form of F-layer

> propagation, either single or multiple hop, does the signal remain a

> constant  horizontal polarization over the entire path, or is the polarization

> twisted to  be received in various polarizations?

>

> And a second question, is there an advantage/disadvantage to using a

> cubical quad at Station A and a horizontal Yagi at Station B?

>

> I ask this in view of a debate transpiring elsewhere.

>

> Both theorists or first-hand experience acceptable.

>

> Thank you.

>

> 73,  Bill @ W0WOI

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