[hpsdr] frequency correction factor

Bill Tracey bill at ewjt.com
Wed Apr 1 21:05:48 PDT 2009


Hello Hans,

The only reason one cannot enter the correction factor manually is 
because I did not like the user interface for it - entering a bunch 
of numbers did not seem terribly elegant to me.

Next time I'm updating the code I'll open it up so those that want to 
set it manually can.

Cheers,

Bill (kd5tfd)

At 04:02 AM 4/1/2009, 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.



 1238645148.0


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