I have been told that the Radio Shack 651 you can not program in a radio's specific radio number and then listen to only them and who they are talking to is this true? If so can i try and program in some radio that are on the MOSWIN radio system or does it not work on P25 radio systems? If anyone knows anything about what i am asking please reply. If it will work on other types of radio systems how do i do private radio traffic and if Radio Shack 651's can not do private radio traffic why do they have the selection for private or group when you program in talkgroups?