MSF5000 800MH SSCB convert to UHF

The General forum is where users can discuss any topic regarding Motorola communications equipment - hardware, software, etc. There are also several focused forums on this board, so please take the time to ensure that your questions doesn't fall into one of those categories before posting here!

Moderator: Queue Moderator

Post Reply
New User
Posts: 1
Joined: Fri Jan 16, 2015 4:46 am

MSF5000 800MH SSCB convert to UHF

Post by Mruble »

I came into possession of a MSF5000 RF tray and digital controller with the TLN3090A (800MHz) SSCB. In looking over the documentation it appears a few dozen resisters are different between the VHF, UHF and 800MHz. versions. The EPROM is probably loaded with different code. The parts list refers to different resistors for TRN7061A, TRN9998A and TRN1779A in the book that lists TLN3034A - UHF, TLN3059A - VHF, and TLN3039A - 800 on page 1 publication 68P8102E93-O 12/29/89-UP. I have not been very successful in identifying TRN7061A, TRN9998A and TRN1779A to know which one is the UHF version.

Would it be possible to swap the parts, copy an EPROM from a UHF SSCB, and have a SSCB that could operate a UHV RF tray? Anybody ever done such a thing?
Post Reply

Return to “General Motorola Solutions & Legacy Radio Discussion”