GE M-RK Freq Error Tuning

[2wayfreq]

Hey,
I used to tune these when I worked as a tech for a public safety agency. Unfortunately, you have to take them apart. There was a battery connector plate that screwed on to the bottom casting to slide on the external powered (Fake Battery). There was a rear screw on plate (looks like a partial rear cover) behind the radio for the RF connector. Then, there was a multi-colored short cable (10 Pins?) that connected the two internal boards together so that you could actually get to the Oscillator pot. The first two I can probably make out of some beat up covers. Anyone remember or have a part number for the cable? Probably no longer exists, I'll likely have to make that too.
Then again, anyone found a better way or method, or made a better (Tuning Jig) for these? Appreciated Greatly!

 

[radioman2001]

Drill a hole in an old case, that's what I remember was how the test fixture did it

 

[WNZT398]

I serviced MRK radios for years and have two OEM adapter kits including the RF, battery and ribbon cable. We no longer have MRK radios issued and don't know what will happen with these but will update if they are available in the future. We normally sell on GovDeals.com but these items would be included in a large list of radios and or other surplus communications hardware.

 

[cmdrwill]

I used to tune these when I worked as a tech for a public safety agency.

I seem to remember a tech that worked for Riverside County.

 

[2wayfreq]

Hey Will,
Yeah, they moved on to Motorola. I still like M-RKs, just a pain to tune.