I see two PD talkgroups for Driscoll on Four County (EDACS) system.
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If they have moved over to the new
Coastal Bend P25 Phase II system, their TGIDs should be 21670 & 21671. (You take the EDACS talkgroup (the Decimal one, not AFS) & add 20000 to them to find the probable TGID on the new system.)
The only thing I see on the new system for Bishop is a fire department TGID.
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What you might do is have the new system loaded, & set it to ID Search instead of ID Scan. That will find any new talkgroups not yet shown in the database. You did not mention which scanner. For talkgroups that
are in the database, but of no interest to you (like the buses in Corpus & public works), program them in the system, but then lock them out ("Avoid" if you are using a database scanner such as the x36HP or SDS series). That way, if programed but locked out, the scanner will skip then even if ID Search mode.