There are several controllers used with PURC5000
equipment. We'd need the station model number or some
other description of the control unit to go further.
One uses an EPROM that's programmed with an R-1801
suitcase programmer.
Another uses a PC and RIB and the appropriate RSS
software.
A third has an actual numeric keypad on the front
panel, but it's usually locked so it can't easily be
changed. Either a password or flipping a DIP switch
inside the unit would be necessary to allow frequency
programming.
900 MHz Spectras have a 935-941 MHz filter in the
receiver's front end. They will not receive well, if
at all, at 902 MHz. There are no inexpensive filters
you could buy to expand the range. There probably
aren't any expensive filters available either.
900 MHz MaxTracs have similar front end filters, but
these can be replaced with 915 MHz units that have a
+/- 13 MHz bandwidth. Some other work would be
necessary to get the radio to receive 902 MHz.
800 MHz MaxTracs are inexpensive. Replace the front
end filters and it makes an excellent 902 MHz
receiver.
See the articles on www.repeater-builder.com in the
Motorola MaxTrac and Motorola Spectra sections.
Bob M.
======
--- radionut45 <[EMAIL PROTECTED]> wrote:
> Hello,
>
> Can anybody direct me on how to get a Motorola PURC
> 5000 900MHz
> transmitter on 927? It is currently on 931. Also,
> what would be ideal
> for a receiver? It is only the transmitter. I'm
> thinking a spectra or
> maxtrac.
>
> Thanks for the help.
>
> -David
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