If it's possible to do this conversion and I end up doing it, this
repeater won't see that much usage compared to a lot of other ham
repeaters...it's just for a small group of people who I don't think
will abuse it *too* much...but anyway, here's what I found in
looking at it again:
TKN6413A - on one of the wire bundle connectors going from power
supply to exciter
PT7 - red, stamped on power supply near bottom
TLN8847A1 - on small circuit board on back side of power supply
25D84561A01 and 5247338 - on the larger of the two black transformers
27E83972GQ5 - on upper part of power supply, on side of chassis
Hopefully, out of those numbers, at least one of them is meaningful
and provides the info you need. I'll look forward to your reply.
Thanks,
Matt
--- In Repeater-Builder@yahoogroups.com, Neil McKie <[EMAIL PROTECTED]>
wrote:
>
> Before you get too far into this, please note Motorola made
> three versions of the power supply you may be currently looking
at.
>
> Most likely, the power supply you have there is the intermittent
> duty version. The part number of the power transformer and/or
the
> power supply model number will tell you for certain.
>
> Intermittent duty is a 20-25% transmit / 75-80% receive ...
meaning
> the power supply won't survive when used as the so-called typical
> ham radio repeater - where close to a 100% transmit duty cycle
> should be expected.
>
> Please post the power supply model numbers (all you can locate -
> rubber stamped on the chassis) and the power transformer part
> number too if possible.
>
> Hope this helps,
>
> BTW, I have the manuals on all three power supply chassis'.
>
> Neil - WA6KLA
>
>
> Matt wrote:
> >
> > Hi. I was given a Motorola Motrac base station...it's model #
> > C53MHB-3100BR, and comes in the short cabinet, with card cage,
etc.
> > I was looking at it earlier today and see that there's a place
for a
> > Squelch Gate card and Tone Decoder card in the card cage, as
well as
> > a spot in the bottom of the unit where it looks like a second SO-
239
> > connector could be mounted. There are also separate cables
running
> > to the bottom of the cabinet from the TX and RX sections.
> >
> > This leads me to believe that this unit was made with the
potential
> > for conversion to a repeater station. My theory is that I could
> > stick in one of my extra Squelch Gate cards, make two separate
> > connectors for TX and RX, and do something to make the receiver
stay
> > active while the TX is running, and it should work.
> >
> > Has anyone done this before? Any suggestions, advice, notes, etc?
> >
> > Thanks,
> >
> > Matt
> >
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