Diversity reception has been around a very long time. I remember
seeing it in the early '50's in Air force RTTY traffic circuits. Yes,
you can do it with separate radios, and you can easily control their
tuning simultaneously by tying them together through software (not
necessary, but very convenient). I did some experiments a couple
years ago with two K3s using independent antennas and it definitely
improved reception using stereo headphones. When one receiver faded
out, the other usually had a signal. Reduced the effect of fading
almost completely. Definitely worth doing!
The article at http://en.wikipedia.org/wiki/Antenna_diversity explains a lot.
There are additional advantages if you can phase-lock the receivers
and then preferentially tweak the signal delays through software
tricks. This is called beam-forming, or null-steering. See
http://en.wikipedia.org/wiki/Beamforming for more on this concept.
From what I read about PowerSDR development, we may have this in a
future release for the flex-5000 hardware. Pretty neat stuff.
Jerry W4UK
At 08:46 AM 4/1/2010, Michael Walker wrote:
So, I apologize if this has been asked before (as I have over 2000
unread emails in my Flex in box).
Would it be possible to run diversity reception at some point if I
was to use a 3K as my main raid and a 1.5K as a 2nd receiver?
Mike VA3MW
_______________________________________________
FlexRadio Systems Mailing List
_______________________________________________
FlexRadio Systems Mailing List
FlexRadio@flex-radio.biz
http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz
Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/
Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
