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Motorola Q2904A MCR100 Repeater

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Trinity-Explorations

Trinity-Explorations

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I have a Motorola Q2904A MCR100 Repeater that we purchased off ebay.
We are looking to make a GMRS Project out of it and i am looking for some information on it.

What kind of RSS Does it take to program this repeater? I have heard you need a very slow computer under 25mhz to program it. Is it difficult to program?

Can you use a Control module for this such as a Comtegra console or Desk Control phone?

What kind of antenna's would i need for the transmit and receive?

Also, i would like to use a motion computing tablet to control MDC ID's and Tone signaling software for this repeater, is this possible with this repeater?
 
ramal121

ramal121

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The R-100 repeater is really becoming vintage. I remember a few new ones that went out when I started the radio gig in '89. Soon after, Desktracs were all the rage.

It uses its own special R-100 RSS. The same rules apply as a Maxtrac. Slow computer and pure DOS to run it is best. Good luck finding it, it's becoming pretty rare. I had it until my old Toshiba satellite died a sudden death.

Be aware they came as either a PL or DPL model. You couldn't change between the two. Check the factory sticker inside.

External equipment can be hooked to the terminals on the control board. TRA, external controller, IDer, etc.

You should run it with a cheap duplexer and then you can have the UHF antenna of your choice. If you want to run split antennas, search around, there are many threads on that subject.

Good luck with it. Not a bad unit at all.
 
cmdrwill

cmdrwill

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The R100 takes a modular to serial port cable, and does NOT use the RIB. The RSS R100.exe, only runs in DOS with a slow 12 mHz 286 computer.

The receiver and Exciter program separately on a different PGM jack on the control board.
The RSS and the radio were built in Germany back in the late 80's when the IBM 296 was the latest computer.
 
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