[Linrad] Re: Error: MAP65-IQ 4KHZ not MHZ

[Joe Taylor <Princeton.EDU; joe@xxxxxxxxxxxxxxxx>]

Hi Ned,

You wrote something on the Linrad reflector that prompts me 
to ask a question.  Where does one set a frequency 
correction for the SDR-IQ in Linrad?  I haven't found this, 
I guess.

	-- Joe, K1JT

> You need to get it right in both apps. I used a signal generator and
> got the offset frequency in LINRAD right first by watching its
> display. And then I modified the fadd in MAP65-IQ to get its display
> right. There is a 3rd offset which I cannot figure out how to control
> My SDR-IQ is off around 200 Hz. There is not enough resolution in the
> frequency correction in LINRAD to correct for that...maybe I can get
> it right by adjusting fadd in MAP65-IQ. What happens with that SDR-IQ
> frequency error  is that the station may be actually in the next 1 KHz
> increment than what my displays suggest. So, when I dial my TX
> frequency, I may be off by 1 KHz. To correct for that right now, I
> look at the DF and when it is a big number I known it is in the next 1
> KHz bin (which bin is determined by the sign of the DF).
> 
> Ned
> 
> AA7A

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