[Elecraft] Dual Receivers 2 different antennas Diversity receive
Barry
barrylazar2 at gmail.com
Tue Jan 28 19:09:39 EST 2020
Frank,
Not all of us have your backyard, like me. Using two different
polarization will get you there also, And, cross polarization will
enhance decoupling between the antennas.
73,
Barry
K3NDM
------ Original Message ------
From: donovanf at starpower.net
To: elecraft at mailman.qth.net
Sent: 1/28/2020 2:41:40 PM
Subject: Re: [Elecraft] Dual Receivers 2 different antennas Diversity
receive
>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/
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