You have three choices:1. Set up three banks with the same trunking system in each and program 100 Talk Groups in each bank.
2. Set up one bank with the trunked system and program in 100 talk groups. After pressing the scan button in trunk mode press the search button. Known TG's will be displayed with alpha tags and unknown talkgroups numbers only will be displayed.
3. Set up the system in Control Channel only mode, TRS must be Motorola, and just search, once again whatever known talk groups you enter will be displayed.
With 300 TG's I am sure that you will hear nothing but that trunked system on your scanner.
