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Relm RH256NB help!

Posted: Mon Aug 05, 2013 8:21 pm
by KD8QQC
I recently acquired a Relm RH256NB serial number 681-A23702. The unit powers up but I have not been able to program it. I did get a reply from Relm for an inquiry for a user manual and they were going to mail it to me. Well that was a month ago and I have yet to get anything.

Does anyone have a copy of the use manual for this radio? I also need to know how to program it. All the information I have found does not match this radio. It does not have the switch on the board that all the programming I have been able to find refers too.

Any information or assistance on this would be appreciated.

Re: Relm RH256NB help!

Posted: Thu Aug 29, 2013 9:47 pm
by KD8QQC
Ok, I have figured out how to get this radio programmed but have a microphone issue. I still have not heard anything from Relm about the owners manual. Does anyone have a copy of one and with any luck a schematic?

thanks in advance,

73
KD8QQC

Re: Relm RH256NB help!

Posted: Sat Sep 07, 2013 11:19 pm
by gcnengineer
Programming is simple

http://www.youtube.com/watch?v=xjnrjMVmTS4

You will also find helpful pdf and spreadsheets there to assist your programming.

Also try:
http://www.relmservice.com/manuals/RELM/RH256N_Prog.PDF

Re: Relm RH256NB help!

Posted: Tue Nov 05, 2013 9:40 pm
by KD8QQC
Wow I figured out how to program this and fix the microphone myself. What is strange is that I just got notification of a reply almost 2 months later than when it was posted. Nice.