I'm running the TRX-1 variant, the converted RS 668. I'm also having problems on the Monmouth TRS and I DM'd JMR about it. In the defense of the radio I have to say when I had the NJICS system in it, that system worked. Also on DMR the radio works exceptionally well and for that reason alone I would keep the radio!
A few weeks back the Micro SD card became corrupted and I lost all the info. I read that installing a smaller capacity SD card improves the radio's performance and that seems to be the case. I'm presently running only the Monmouth TRS and some DMR and it does work. A question back to you guys- I thought I read a post somewhere which I can't find now a better way to enter the NJICS without entering every individual site? Since I travel around several different counties (Monmouth, Ocean, Middlesex, Somerset & Morris) programing all those individual sites is a pain.