[hpsdr] HPSDR Transmit Frequency

[Joe Martin K5SO]

As further clarification for this "sked" scenario,

> Now,  if you happen to have a pre-arranged CW sked set up with some  
> station and you have an agreed-upon operating frequency of 14.31000  
> MHz, you will want to first select CWU then set the VFO A to  
> 14.31000 MHz.  In this case you will be transmitting exactly on  
> 14.31000 MHz.

and how the HPSDR radio operates,  consider this:

If the station you happen to have the sked with also is using an HPSDR  
radio and is using CWU mode and has his VFO A set to 14.310000MHZ the  
audio tone he hears from your transmissions will be whatever value he  
has set in his own "Pitch Freq (Hz)" window on his HPSDR radio.  This  
is because the Rx frequency in CWU mode is automatically "down tuned"  
in frequency from the VFO A value by the amount set into the "Pitch  
Freq (Hz)" window.  This is so that when you tune to a carrier at a  
given frequency the tone produced in your audio output will be the  
audio frequency that is set in the "Pitch Freq (Hz)" window (not zero  
beat with it).

Joe K5SO




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