[Elecraft] Diversity at 50 MHz

[Lyle Johnson]

Hello Rick!

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

There are two IFs, and independent 8.215 MHz IF buffers.  The KXV3 only 
allows a single IF to be connected at the moment, so you'd need to 
hijack or add a rear panel BNC to have access to both IFs at the same time.

> Better yet, can you get I and Q outputs for both receivers separately at 
> the rear panel ... ?

The 15 kHz IF is not brought to the rear panel.  I and Q are done in the 
DSP, and the DSP has only stereo outputs.

However, it *might* be possible to incorporate a special mode where the 
LINE OUT represented I and Q from one receiver, and PHONES/SPKR the I 
and Q of the other receiver.  You'd then need to isolate the PHONES and 
be careful with level settings, etc.  The PC application would need to 
independently compensate for any phase or amplitude shift from the 
different AF paths.  The bandwidth from these would be about 5.2 or 5.3 kHz.

The K3 with second receiver will have high correlation between the 
receivers, as the synthesizers are derived from the same reference 
oscillator, the same oscillator is used for the conversion from 8.215 
MHz to 15 kHz, and the ADC sampling is done by a common clock on the 
main DSP board.

Have a gr8 '08!

Lyle KK7P