[Elecraft] Diversity at 50 MHz

[Rick Kunath]

Alan Bloom wrote:
> As I recall, signals at VHF/UHF tend to become horizontally polarized
> after propagating long distances, no matter what the polarization of the
> transmit antenna.  That's why horizontal polarization is traditionally
> used for SSB/CW (DX-oriented communications) and vertical for FM (mostly
> local communications).

Exceptionally interesting thread...

K1JT (of WSJT fame) has been doing some experimenting with dual 
polarization reception using two identical setups, preamps, receivers, 
etc, connected to horizontal and vertically polarized antennas. Each 
receiver requires a separate baseband feed to Linrad to decode (4 
channels) that is then fed to a second computer over a dedicated 
Ethernet crossover cable which is running MAP65.

Results have been outstanding.

Here is a link describing MAP65:

http://physics.princeton.edu/pulsar/K1JT/MAP65_Quick_Start.txt

My question would be, are there two separate IF outputs on the K3 if you 
have two receivers installed?

Better yet, can you get I and Q outputs for both receivers separately at 
the rear panel to feed into a 4 channel soundcard, and then along to a 
computer running Linrad and then on to a second computer running MAP65?

Rick Kunath, k9ao