I've been trying to get this scanner to work for about two days now and i keep getting bits and pieces of conversations. I've programmed all of the frequencies, and all of the talkgroup ids into this thing. I've put in all of the alpha tags(not required i know) and done everything i can think of to get it to trunk scan and it still wont. My previus scanner was a pro-528 and i could lock onto just talk groups. is this possible at all with the 164? can someone please help me with this or do i just have an expensive paper weight?