[Elecraft] K3: Thinking return to K3.

[Brendan Minish]

The 7800 is terrible for diversity, there are two issues that make it 
nearly unusable for diversity

1/ the Main and Sub RX cannot track (tune together )
2/ there is constant but small frequency offset between the main and sub 
RX, this is present all the time, even with an external 10MHz reference 
oscillator.
The main and sub Receivers have slightly different IF frequencies 
(100KHz apart if I recall correctly ) as a result the 2DDS Local 
oscillators have differing decimation errors and this results in a small 
frequency offset at all times between main and sub, this makes Diversity 
reception very difficult and unpleasant to use.

been there, done that ;-0

73
Brendan EI6IZ

ny9h wrote:
  > And I understand that the 7800 is not as good for diversity
> reception... as the K3.
> 
> bill 
>