[Elecraft] [Elecraft_K3] Who said anything about removing diversity? That would *never* happen...

[Alan]

If the two receivers' local oscillators were even a fraction of a Hz 
different in frequency, the perceived "direction" of the incoming signal 
would be constantly changing, which I think would be disconcerting.

Alan N1AL


On 02/17/2015 10:09 PM, Wayne Burdick wrote:
> Diversity reception is characterized by perceived "phase precessing" between the two receivers' audio streams due to varying phases of the main and sub RF input signals. You don't want additional, unpredictable phase precessing on top of that due to the receivers themselves. Additive phase changes would sometimes make diversity reception less pleasant to listen to. Better to have the receivers locked together, eliminating a variable.
>
> Wayne
> N6KR
>
>
> On Feb 17, 2015, at 10:02 PM, Vic Rosenthal <k2vco.vic at gmail.com> wrote:
>
>> I know it's true, but I don't see WHY the receivers need to be phase-locked. After all, the signals are entirely separate until they are combined in your head. There isn't a question of interference/ reinforcement at RF.
>>
>> Vic 4X6GP/K2VCO
>>
>>> On Feb 17, 2015, at 9:31 PM, Wayne Burdick <n6kr at elecraft.com> wrote:
>>>
>>> In diversity mode, the main and sub RX synthesizers are guaranteed to be phase-locked to each other if the crystal filters selected for main and sub both have exactly the same frequency offset. The offset for all 8-pole filters is 0.00. The offset for 5-pole filters varies, and can be ordered in matched sets for main/sub.
>>>
>>> Wayne
>>> N6KR
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