Batboard

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

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.

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

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

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

Fowler

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.

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

Thanks for all you comments