be interesting to see if that feature could be added.
Original message
From: Don Wilhelm w3...@embarqmail.com
Date: 05/26/2015 8:26 PM (GMT-05:00)
To: Tony McRae a...@ttecs.com.au, elecraft@mailman.qth.net
Subject: Re: [Elecraft] K3, diversity and noise reduction
The suggestion is to use the two identical receivers in the K3 to null
noise and interference. The idea is to connect each receiver to a
different antenna so the signals arrive with different phases. The
phase difference will generally be different for the desired signal and
the interference
Tony,
You are looking at information about how to compensate two unequal
receivers for true diversity reception - two orthogonally opposed
antennas receiving the same signal.
The K3 makes that easy with a sub-receiver that is identical with the
main receiver and they are phase locked together
It would be interesting to see if that feature could be added.
Original message
From: Don Wilhelm w3...@embarqmail.com
Date: 05/26/2015 8:26 PM (GMT-05:00)
To: Tony McRae a...@ttecs.com.au, elecraft@mailman.qth.net
Subject: Re: [Elecraft] K3, diversity and noise reduction
Tony,
I strongly recommend the DX Engineering NCC-1 for noise cancellation:
http://www.dxengineering.com/parts/dxe-ncc-1
It is very effective at nulling out offending noise sources -- BUT, it
will do so for only one source at a time. You may find that nulling out
one of your sources will
.
Original message
From: Don Wilhelm w3...@embarqmail.com
Date: 05/26/2015 8:26 PM (GMT-05:00)
To: Tony McRae a...@ttecs.com.au, elecraft@mailman.qth.net
Subject: Re: [Elecraft] K3, diversity and noise reduction
Tony,
You are looking at information about how to compensate two unequal
PM (GMT-05:00)
To: Tony McRae a...@ttecs.com.au, elecraft@mailman.qth.net
Subject: Re: [Elecraft] K3, diversity and noise reduction
Tony,
You are looking at information about how to compensate two unequal
receivers for true diversity reception - two orthogonally opposed
antennas receiving
This is normally done ahead of the aerial input and will work with any
receiver that supports such an input.
Effectively what you are doing is creating a null in the antenna pattern
in the direction of the source.
It needs an effective point source to work well. If the signal is
getting
I have been watching some youtube clips showing how by adjusting the phase and
amplitude of two received signals on a diversity receiver local noise can be
reduced by more than 20db.
This would be particularly useful to me as I have the dirtiest plasma TV on one
side of me and a gaggle of
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