Well the specific one is from a CDM750 but I think most operate in
the same basic manner. It isn't so much an exact schematic I need but
a basic operation diagram. Motorola supplies about +5V on the mic
line and the mic element is also connected throgh the PTT switch
somehow.
What I am trying to figure out is if I can use a mic amp to boost the
gain for an autopatch.
It is almost looking like I may have to custom build an amp out of a
FET or something like an other responder did.
As to the TU-154, all I get is hits for an old Russian airliner.
Thanks -Rob-
--- In Repeater-Builder@yahoogroups.com, Neil McKie <[EMAIL PROTECTED]>
wrote:
>
> Not a problem, if you can remember which radio you had it
> connected to when you installed it, I probably have the manual
>
> Was that a FMTRU-5V ?
>
> Neil
>
>
>
> Mark Holman wrote:
> >
> > type in TU-154 for Motorola, an old remote head with a amplified
mic.older
> > than dirt 1964 I think.
> >
> > I had one or 2 my dad gave me no radio though :-(
> >
> > M. H.
> >
> > ----- Original Message -----
> > From: "Rob" <[EMAIL PROTECTED]>
> > To: <Repeater-Builder@yahoogroups.com>
> > Sent: Wednesday, January 05, 2005 1:15 AM
> > Subject: [Repeater-Builder] Motorola microphone schematic
> >
> > >
> > >
> > > Anyone know if the schematic for an amplified Motorola Mic is
> > > available on the net?
> > > Still trying to get this autopatch going and having some real
level
> > > issues. My patch just doesn't have enough drive for the radio.
> > > TIA -Rob-
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > > Yahoo! Groups Links
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> >
> >
> > Yahoo! Groups Links
> >
> >
> >
> >
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