[Premium-Rx] MANUAL NEEDED FOR RACAL 2174 B (P) URR

[Royce, Alan (Space Technology)]

I am looking for a ops service manual, copy or original manual. This may be in the form of a military TM manual. I do not have the military TM number.
The receiver is a variation of the Racal 6790/GM with two antenna inputs, N connectors, VLF and VHF. It also has the Cannon military RS232 connector on the back and additional boards in it..
Any help would be greatly appreciated.
Thanks
Al Royce