I am in dire need of the proper VCO crossover frequencies for an MT2000 UHF, H01SDH9AA7AN.
Firmware: R02.13
MDC-1200 capable
450-512 Mhz.
RF board: NUE7268B
Controller board: NCN6147A
Yes, this is an Ace. P radio folks.....All the way from Waco, GA.
Well, to make a short story shorter, this is the first time I have had a need to program this radio, and it's been sitting idle since I received it.
Nevertheless, once I attempted to progam it, the FAIL 001 showed up!
I never entered the service menu...WTF?
So I did enter the service menu, and the VCO crossovers for both transmit and receive were waaaayyy out of whack!
I know for certain there are NO crossovers in the 448/468 range for THIS split radio, hence the FAIL 001 error.
This is why I would appreciate someone with a more recent service manual that does have the above listed RF/controller boards, as well as their corresponding VCO crossover frequencies, so I can enter the proper values and get out of the error message on the display.
My service manual only has values for 800/900 and VHF models and the 'R' split models only....Not a single value for 'S' split UHF radios.
ANY help in this matter is HIGHLY appreciated!
Thank you very much in advance!!!!!!!!!
MT2000 with wrong VCO crossovers....RX/TX.
Moderator: Queue Moderator
Here's what I have to work with, for the 'S' split radio.
Manual FMR-1799A-1, which covers a 450-520 split board, but does NOT cover my RF board number.
RF PA: 85Y11
RF board number: 4421J44, revision 'T'
The crossover frequency listed for use is 495.375.
But since my RF board is a different number, the second 'choice' for use is 486.025.
Okay, since the manual states 'any' 4221J series board will work, aside from the J01 through J06/36, I should be good to go with the 495.375 frequency, which I'll use.
I just had to dig a little more to find the answer.
Manual FMR-1799A-1, which covers a 450-520 split board, but does NOT cover my RF board number.
RF PA: 85Y11
RF board number: 4421J44, revision 'T'
The crossover frequency listed for use is 495.375.
But since my RF board is a different number, the second 'choice' for use is 486.025.
Okay, since the manual states 'any' 4221J series board will work, aside from the J01 through J06/36, I should be good to go with the 495.375 frequency, which I'll use.
I just had to dig a little more to find the answer.