[Skimmertalk] Calibration of QS1R for latest SkimServer software
Wes Cosand
wes.cosand at gmail.com
Sat Mar 6 14:19:13 PST 2010
Folk have been asking question about calibration of SkimServer.
Some notes from my experience:
Of course since the resolution with which Skimmer Server reports the
frequency is 100 hz, when I tune my HF rig to the frequency reported in a
Skimmer spot the HF rig is going to be off as much as 50 hz even when the
QS1R is calibrated correctly.
I assume my HF rig is correct, which may be a poor assumption. I use CWget
or some other software that reports the audio tone coming from my HF rig. I
click on a number of 14 or 21 mhz spots and write down the frequency of the
CW tone as reported by CWget, average a number of them, and figure out how
far I am from the CW offset tone of my HF rig
When receiving with the HF rig if the audio tone of CW is too low when tuned
to the frequency reported by Skimmer, then I raise the frequency correction
factor in the Skimmer Server ini file.
The last line in my SkimSrv.ini file is:
FreqCalibration=1.0000095
I think before the correction I was off by perhaps 100 hz or so on 14 Mhz
Fallibly,
Wes WZ7I
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