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[Linrad] Re: Error: MAP65-IQ 4KHZ not MHZ
- Subject: [Linrad] Re: Error: MAP65-IQ 4KHZ not MHZ
- From: "gmail.com; nedstearns@xxxxxxxxxxxxxxxx>
- Date: Sun, 8 Mar 2009 08:49:50 -0700 (PDT)
I am not the expert on this, but this is what I did.
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).
On Mar 8, 2:04 pm, Les <mp3downloadcent...@xxxxxxxxxxx> wrote:
> Sorry I mean 4KHZ off not 4MHZ off
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