[tracker2] what am i doing wroung on setting up?

[Ron K7CDL]

i just got my tracker2 OT2m in. when it trys to send i have the RX light go off 
and the ACT/TX lights turn soild red for a few secs. i'm using a mobile rig. if 
i move the jumper to HT then it turns on my mobile so i know my mobile cables 
are right. please help. thanks
K7CDL
Ron