Diversity Mode - DATA-A

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Diversity Mode - DATA-A

Edward R Cole
I haven't read W8JI article, but if you are looking to process
diversity data streams from two receivers, you might look at using
Linrad.  I am working on a project that uses the diversity function
of the K3 with aux-Rx to process two signals that are opposite
polarity in order to automatically align the receiver with the angle
of polarization.  The heavy lifting is done by Linrad.  You can
follow my progress at:
http://www.kl7uw.com/LINRAD.htm

73, Ed - KL7UW

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Message: 33
Date: Wed, 15 Jun 2011 20:26:57 -0700 (PDT)
From: vk4cmv <[hidden email]>
Subject: Re: [Elecraft] Diversity Mode - DATA-A
To: [hidden email]
Message-ID: <[hidden email]>
Content-Type: text/plain; charset=us-ascii

Hi Joe et al -

I've read the very informative notes from W8JI
http://www.w8ji.com/polarization_and_diversity.htm - and the previous
lengthy & sometimes heated thread of posts on this forum. Very interesting.

In the end of the day, it looks like some kind of voting system would be
required to take the 'good bits' from each stream of data (antenna).

At least with a mode like JT65a there is some hope of building that into the
software - there's even two decoders built in, if the signal fails on the B
decoder, the K decoder is tried - which is a voting system of sorts.

I think the relevant bit  of Joe Taylor's code is written in FORTRAN - so
I'd better go and brush up on COMPLEX*16 variables.

73 Julian




73, Ed - KL7UW, WD2XSH/45
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BP40IQ   500 KHz - 10-GHz   www.kl7uw.com
EME: 50-1.1kw?, 144-1.4kw, 432-100w, 1296-60w, 3400-?
DUBUS Magazine USA Rep [hidden email]
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