[Elecraft] K3 Diversity Reception Question
Eric Swartz - WA6HHQ, Elecraft
eric at elecraft.com
Tue May 29 10:42:06 EDT 2007
Hi Mike,
The synthesizer in the second RX is locked to the same TCXO reference as
the primary K3 rx.
73, Eric WA6HHQ
Mike Scott wrote:
> Is there one or two local oscillators in a two receiver K3?
>
> I have been puzzling over the stated ability of the K3 to achieve diversity
> reception (single signal two independent antennas). For this to work I
> believe that the subreceiver 8+ MHz local oscillator and the DDS VFO must be
> in phase lock with the main receiver.
>
> I think I read that the subreceiver DDS VFO can be slaved to the main
> receiver and I assume this means the two VFOs can be in phase lock.
>
> I have not read anything about phase locking the local oscillator of the sub
> receiver to the main receiver or if a single local oscillator is common to
> both receivers. If this isn't the case diversity reception won't work
> properly unless the phase difference of the two local oscillators is
> possibly compensated for in the signal processing chain.
>
> Mike Scott
>
> AE6WA
>
>
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