[hpsdr] frequency correction factor

[Graham / KE9H]

Hans:
You are a candidate for Excalibur.
You won't need a "Frequency Correction Factor."

http://hpsdr.org/wiki/index.php?title=EXCALIBUR

--- Graham / KE9H

hartfuss wrote:
> ***** High Performance Software Defined Radio Discussion List *****
>
> Hi Bill (KD5TFD), all,
> after initial table tests with Atlas-Ozy-Mercury-Penelope, loading the 
> latest firmware and having also a few QSOs in this open setup I 
> assembled the whole transceiver together with the power supplies and a 
> class A 10W driver amplifier in a FLEX-5000A like housing (Schroff 
> company) and it works fine. Thanks again to all hard- and software 
> developers, great!
> Penelope output is woderfully linear, as reported earlier, 
> Mercury/Panadapter baseline clean, Level calibration OK, automatic 
> frequency calibration basically OK; a few Hz of deviation present 
> compared to broadcast stations whose accuracy is of the order of 10^-9 
> (DW at 6075 kHz). There were reasons already discussed in the 
> reflector, I know.
> Frequency calibration could be done better I think in case the 
> "Frequency Correction Factor" in the Setup could be changed MANUALLY 
> (there are enough digits behind the comma), tuning to 6075 kHz and 
> adjusting the beat frequency to zero in DSB mode (scope or phase 
> Panadapter Mode).
> Bill, why don't you allow for manual Frequency Correction Factor 
> changes, isn't it possible??
> Thanks, Hans, DL2MDQ.
>
>
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