From: JJ&A (w7ls@blarg.net)
Date: Wed Oct 09 2002 - 21:14:45 PDT
The deviation on those old mil sets is +/- 15 KHz. Current amateur practice is 5 KHz. If the mil radio guy just talks softly, he
will not deviate the full 15 KHz, and the amateur receiver will work fine. The amateur transmitter, deviating only 5 KHz will
sound weak, but readable to the mil radio guy. We do it all the time at shows. There is a 'new squelch' function on some mil
radios, which is just a 150.0 Hz subaudible tone. It's very close to a standard PLL tone of 151Hz (or something like that). Some
need it, some don't. Jim W7LS
Patrick Jankowiak wrote:
> I thought that was by gentlemen's agreement. Does this apply to the PRC-68 and RT-246 as well? The manuals say they interop.
>
> Can I find this in the FCC Rules? Now you have me curious. I thought the BW was 25KHz.
>
> Jumpmaster wrote:
> >
> > --- Patrick Jankowiak <eccm@swbell.net> wrote:
> > > I do use a PRC-77 and/or a Racal TRA-976 for walking
> > > about, and in the M35, an RT-246 when parked. All on
> > > 6 Meters Ham band. There's only a couple people I
> > > run into on 6M at shows.
> >
> > BTW, the signal from the PRC-77 is too wide to legally
> > use on 6m FM without some modification, but that's a
> > story for another time...
> >
> > T. Bloxom
> > 1985 M1009 CUCV
> > (w/VRC-64 w/modified H-250 to narrow it to legal
> > levels...)
> >
> > __________________________________________________
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>
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