[Elecraft] Dual Receivers 2 different antennas Diversity receive

[donovanf at starpower.net]

I should have clarified 540 feet of separation on 160 meters, 
much less on higher bands (e.g. 280 feet on 80, 140 feet on 40) 


73 
Frank 
W3LPL 

----- Original Message -----

From: donovanf at starpower.net 
To: elecraft at mailman.qth.net 
Sent: Tuesday, January 28, 2020 7:38:07 PM 
Subject: Re: [Elecraft] Dual Receivers 2 different antennas Diversity receive 

60 feet of antenna separation does not provide diversity capability. 
Diversity depends on independent fading of received signals, 
accomplished by at least one wavelength of spacing between two 
identically polarized antennas or by two antennas with opposite 
polarization. More than one wavelength of spacing will provide 
even better diversity performance. 


One wavelength of spacing requires 540 feet of spacing, 
almost ten times more what you're proposing to use. 


73 
Frank 
W3LPL 





----- Original Message ----- 

From: "VernonJ" <k2vjk at k2vjk.com> 
To: elecraft at mailman.qth.net 
Sent: Tuesday, January 28, 2020 7:27:31 PM 
Subject: [Elecraft] Dual Receivers 2 different antennas Diversity receive 

My K3S has Main and Sub receivers. I would like to use Diversity receive with 
the Main using the transmit antenna, and my Sub using a small receive loop. 
Is there sufficient isolation on the Receive Only antenna connection to 
protect the Sub? Antennas are 60 feet apart, and I intend to run 500 watts 
at some point. If I need additional isolation and protection, how would I do 
this? Thanks. 



-- 
Sent from: http://elecraft.365791.n2.nabble.com/ 
______________________________________________________________ 
Elecraft mailing list 
Home: http://mailman.qth.net/mailman/listinfo/elecraft 
Help: http://mailman.qth.net/mmfaq.htm 
Post: mailto:Elecraft at mailman.qth.net 

This list hosted by: http://www.qsl.net 
Please help support this email list: http://www.qsl.net/donate.html 
Message delivered to donovanf at starpower.net 

______________________________________________________________ 
Elecraft mailing list 
Home: http://mailman.qth.net/mailman/listinfo/elecraft 
Help: http://mailman.qth.net/mmfaq.htm 
Post: mailto:Elecraft at mailman.qth.net 

This list hosted by: http://www.qsl.net 
Please help support this email list: http://www.qsl.net/donate.html 
Message delivered to donovanf at starpower.net