TRANSLATION: K3 Subreceiver Status Update

[Bill W4ZV]

HB9DRV:

 >The delay in the sub-RX is making me reconsider whether to buy
the sub-RX and instead just buy a second basic K3 to use for RX.

         I'm having similar thoughts since I already ordered
a second K3 in September, mainly for SO2R use.  For true
diversity, it would be necessary for both rigs to be phase-
locked to the same source and then use an external control
program (e.g. HRD, N1MM) to program identical frequencies, etc.
It should not be too hard for someone to figure out how to
run both rigs from one unit's reference oscillator.  In my case,
since I will have two units anyway, the incremental cost might
actually be less than the cost of a KRX3.  Still thinking...

                                         73,  Bill  W4ZV

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[Bill W4ZV]

Bill W4ZV wrote

HB9DRV:

 >The delay in the sub-RX is making me reconsider whether to buy
the sub-RX and instead just buy a second basic K3 to use for RX.

         I'm having similar thoughts since I already ordered
a second K3 in September, mainly for SO2R use.  For true
diversity, it would be necessary for both rigs to be phase-
locked to the same source and then use an external control
program (e.g. HRD, N1MM) to program identical frequencies, etc.
It should not be too hard for someone to figure out how to
run both rigs from one unit's reference oscillator.  In my case,
since I will have two units anyway, the incremental cost might
actually be less than the cost of a KRX3.  Still thinking...

        Yet another option might be to carefully calibrate
both K3s to the same frequency, and hope that the drifts
of both would be similar.  Or buy 2X $99 KTCXO3-1s which
are spec'ed to +/- 1ppm (firmware corrected to 0.5ppm) and
hope temperature and aging drift would be very similar.  This
would still not be true diversity using phase-locked receivers
but would be better than other rigs currently on the market
(Orion's Main and Sub in my unit were offset by ~2.33 Hz).

         If my second K3 arrives before the KRX3, I may
give this a try before taking delivery of the KRX3.  Another
benefit of this approach is much more flexibility in antenna
switching.

                                              73,  Bill  W4ZV