Project25_MASTR
Millennial Graying OBT Guy
I'm just coming in here as an Astro 25 tech working on the GATRRS system. Interoperability is a mindset. Period. Part of current plan includes local, regional and system wide talk groups. So if you need to be interoperable in Western Counties, you change to a WR IOP zone. Interoperable in Austin? Change to the designated zone. Granted individual regional talk groups are not mapped across the whole system so if your in Western Counties you can't affiliate to a CoA or Wilco interop talk group but that is why the system wide (and some region to region) wide interoperable talk groups are present.
On top of this, each county in the area maintains a set of interoperable repeaters (one for calling, one for assignment) for each band used by neighbors on the national interoperable band plan. This is so if an incident continues into a county that is not part of the GATRRS system or if their infrastructure doesn't support the subscribers (since it's a mix of VHF/700/800) there is still some level of interoperability.
To facilitate the interoperability, CoA has to approve a codeplug template before it can be blown into radios (to ensure the presence of interoperability channels/talk groups and for reference).
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On top of this, each county in the area maintains a set of interoperable repeaters (one for calling, one for assignment) for each band used by neighbors on the national interoperable band plan. This is so if an incident continues into a county that is not part of the GATRRS system or if their infrastructure doesn't support the subscribers (since it's a mix of VHF/700/800) there is still some level of interoperability.
To facilitate the interoperability, CoA has to approve a codeplug template before it can be blown into radios (to ensure the presence of interoperability channels/talk groups and for reference).
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