[Lowfer] WE2XGR/2 frequency & sampling rate cal signal test

David L. Wilson dwilson314 at verizon.net
Sun Mar 4 12:20:30 EST 2012


> David, Gary et all
> 
> We should probably resist temptation and not over analyze the data ... but
> lets do so anyway ;~) .
> Remember the task at hand is to calibrate a sound card to maybe the
nearest
> mHz if we're lucky.

I mostly digressed from the subject as I got no copy here.  Part of the
reason perhaps being an always present weak carrier from some local device
right on 506.5.  I wish I could of tried as the sound card here is probably
the main error source (the receiver is a GPS disciplined ICOM R9500).  I
could not copy /6's test either--just too weak ---oops spoke two soon:

t:  24 f: 0.224 a: 1.1 dp: 35.2 ci:12 cj:157 8ARZEEB.FODD??? ?
t:  48 f:-0.193 a:-1.5 dp: 34.9 ci: 3 cj:178 K52P0K6/*21P5YV ?
t:  96 f:-0.885 a: 0.9 dp: 31.5 ci: 3 cj:201 7NZQ01*7SEP6??? ?
t: 192 f: 0.205 pm:0.339 jm:647 q: -2.8 -2.0 WE2XGR/6 FN12LQ -





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