MCR-100 MOTOCYCLE RADIO

GOLDENDOME · Post by **GOLDENDOME** » Mon Oct 30, 2006 9:41 am

Hello,
What type of crystals does this radio use, the rx is a K1040A. are they mt 500's. I want to re crystal this old timer.
Thanks

RESCUE161 · Post by **RESCUE161** » Mon Oct 30, 2006 9:53 am

Never heard of an MCR-100. Is it an MCX-100? If so, it uses EPROMs to store the frequencies and PL tones. You have to have an EPROM burner and software that you can buy from sources on the net (legally I might add).

Or you can modify them to use EEPROMs so you can change the freqs/PL at will. You just have to pull the chip to write to it.

GOLDENDOME · Post by **GOLDENDOME** » Mon Oct 30, 2006 10:17 am

The MCR-100 is around 1975 vintage, before the eprom era.
Thanks

RESCUE161 · Post by **RESCUE161** » Mon Oct 30, 2006 10:29 am

My fault. Pre-dates my knowledge of Motorola radios...

abbylind · Post by **abbylind** » Tue Oct 31, 2006 7:45 am

MCR100s were an offshoot of a Mocom 35. Uses the same TCXOs. Are you interested in selling it?

Fowler

DJP126 · Post by **DJP126** » Tue Oct 31, 2006 9:24 am

abbylind wrote:MCR100s were an offshoot of a Mocom 35. Uses the same TCXOs. Are you interested in selling it?

Fowler

He is correct. The MCR100 was based on the MOCOM 35. The main changes were to add the multi channel element board to bring the unit up to 10 frequency capability and adding the remote control head and speaker.

Motorola's first order for the MCR100 was for 300 radios on a penalty contract if not shipped on time. We had the 300 radios ready to go a week ahead of time when engineering called them all back for a rework because the transmitter frequency would drift out of spec at 30 degrees F. The order was for Hawaii.

WB6NVH · Post by **WB6NVH** » Wed Nov 01, 2006 8:00 pm

The MCR-100 was a police motorcycle radio, just thought I would add that.

GOLDENDOME · Post by **GOLDENDOME** » Sun Nov 12, 2006 8:02 am

Thanks for all you comments