Yes, I agree with you - 121.5 MHz is an AM circuit.
Using an external AM detector is what I am thinking about ... using
the FM squelch circuitry to turn on the AM detector is in mind here.
Tom, thank you for your comments.
Neil - WA6KLA
Tom Manning wrote:
>
> Neil
> I hope you know 121.5mhz is AM. The receivers you quote are all
> FM I believe. As you may know the 121.5mhz frequency is emergency
> primarily for aircraft. Sometimes you can hear interesting things
> on this and 243.0mhz which is military aircraft emergency frequency.
> 73's de Tom Manning, AF4UG
>
> Neil McKie wrote:
>
> > Any one on here ever convert any Motorola Motrac, Micor, Mitrek or
> > Mocom-70 receivers to 121.5 MHz
> >
> > Or GE Mastr-Pro, Exec, Mastr II or Exec II receivers to 121.5 MHz?
> >
> > I have one to several of each mentioned above.
> >
> > Thank you,
> >
> > Neil - WA6KLA
> >
> >
> > Yahoo! Groups Links
> >
> >
> >
> >
>
>
> Yahoo! Groups Links
>
>
>
>
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