[Elecraft] PSK D Center frequency

[Lyle Johnson]

Hello Julian!

>> That's correct.  It was done intentionally.
>>
> If so, fine. But why?

The PSK decoder's "sweet spot" is closer to 1010 Hz than it is to 1000 Hz.

Your next question is probably," Well, why not move the sweet spot?"

The answer to that is quite lengthy.  Trust me, doing so is not trivial! 
  Shifting the Tx tone 10 Hz to better match the decoder, on the other 
hand, is trivial ;-)

73,

Lyle KK7P