New to the forum, and am working on programming a GRE-600. I know that it is a MOT UHF system, the problem I'm running into is that I can't seem to hash out the trunking tables for it. I have all the frequencies for the system, and I can see the ID's rolling by, however I can't hear anything. I have looked all over the place for trunking tables that might point me in the right direction, but the pickings are pretty slim, any help on the issue of how to get this UHF trunking system to work. If I set it up like the site HERE It works, but the frequencies are off. Any input on this issue would be greatly appreciated.