Maxtrac 800 MHz VCO Schematic Wanted

This forum is for the discussions targeted at converting various models of Motorola equipment to operate in the 900MHz Amateur Band.

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60hzEE
Posts: 217
Joined: Fri Apr 05, 2002 4:00 pm

Maxtrac 800 MHz VCO Schematic Wanted

Post by 60hzEE »

I know 800MHz conversion would be mucho effort, but......

Has anyone a copy of the schematic for U201, the VCO module from a Maxtrrac HLF 9122A RF board? It's the one with the Pin Shift talk around option.

I want to try my luck rubbering the VCO up in frequency to just below 900MHz.

Lee
60HzEE
Will
Posts: 6823
Joined: Tue Sep 04, 2001 4:00 pm

Post by Will »

If I remember, the schematic just shows a box representing the VCO in my books.
60hzEE
Posts: 217
Joined: Fri Apr 05, 2002 4:00 pm

Post by 60hzEE »

Yes, that's the problem. The service manual just shows it as a 'factory module'.
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