[Milsurplus] BC348Q Usage
Mike Morrow
kk5f at earthlink.net
Tue Jan 30 17:55:11 EST 2007
>there's a 150kc blocking osc on that module w. 200kc xtal that's
>mixed with xtal to make 50kcs.
I didn't want to get into the details of calibration checkpoints in my last post dealing with BC-348 receiver usage, but since the issue is raised, here goes.
An AN/ART-13 with the second and by far most commonly encountered 8Q-2 MCW/CFI unit produces calibration check points as indicated for use in the calibration book and tables at intervals that are dependant on the setting of Coarse VFO Dial A:
Frequency VFO Dial A Cal Interval
0.2 to 0.5 mc 13 25 kc
2.0 to 3.0 mc 1 or 2 100 kc
3.0 to 4.0 mc 3 or 4 150 kc
4.0 to 6.0 mc 5 or 6 200 kc
6.0 to 9.0 mc 7 or 8 300 kc
9.0 to 12.0 mc 9 or 10 450 kc
12.0 to 18.1 mc 11 or 12 600 kc
NB: There are exactly ZERO calibration check points spaced at 50 kc intervals.
> rtfm
That would be my suggestion. You'll find some here:
http://bama.edebris.com/manuals/military-kg7bz/art13/
Mike / KK5F
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