I am trying to figure out how to program a LTR system on a radioshack pro 197. I have the frequencies but I do not know of any talkgroups. They have an analog channel but you can still hear the random little blips of sound on the channel that is analog and all the other frequencies. But on my scanner I am not sure how to actually get it plugged in with the talkgroup. I just have the frequencies and a wildcard.