Most Motorola synthesized radios like the Spectra,
MaxTrac, MSF5000, Nucleus, and probably a lot of
others, also send the PL/DPL signal to the reference
oscillator (often called REF MOD) and "modulate" that
so it doesn't succeed at tracking the VCO modulation
and getting rid of the low-frequency shifting. That's
definitely a problem with synthesized radios, but it
can be dealt with.
Bob M.
======
--- Milt <[EMAIL PROTECTED]> wrote:
> Usually if you wish to operate both DPL and PL on
> the same channel you
> decide in advance NOT to use 131.8Hz for anything.
>
> I remember a salesman's radio that was set up with
> PL encode/decode and a
> multi-DPL encoder for multiple community repeater
> access; of course that was
> back in the days when the standard user radio was a
> Mitreck. I don't think
> that I would want to try it with a synthesized
> radio. Most likely the VCO
> would try to track out the DPL signal, crystal
> controlled radios didn't have
> that problem.
>
> Milt
> N3LTQ
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