[Milsurplus] FS: ATD Maintenance Manual Reprint

[WA5CAB@cs.com]

Hue & Group,

Yes, and also as was the case with the GP-7, ATC (AN/ART-13), etc., the 
200-500 KC or so range required the use of an external antenna loading coil.

In a message dated 11/17/2002 3:06:23 AM Central Standard Time, 
milsurplus-request@mailman.qth.net writes: 
> 
> The
> >NAVAER specifically says that the transmitter is supplied with 540-1500,
> >1500-3000 and 2x3000-9050.  And then says "Tuning units having frequency
> >ranges of 9050-15,800 Kcs and 200-540 Kcs are available."  I'm pretty sure
> >that the one that I sent (I think) to Walt H. many years ago included a
> >200-540.
> 
> Interesting, too, that the range 200-500 and 500-1500 were deemed more
> important than HF above 9 MHz. And, if you judge, for this set alone, that
> the 3-9 MHz range was most important, 1.5-3 and  0.5 -1500 next, and
> 0.2-0.5 less important. Important, as in "commonly used". My take, is that
> altho LF / MF was important for DF use, the LF was more difficult to use,
> requiring a much longer trail antenna, and radiating less power, so maybe
> the range 500-1500 was to be preferred.
> 

73
Robert Downs
Houston
<WA5CAB@cs.com>


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