Who assigns Talk Groups?

[hankv]

We have two unrelated Motorola Type II systems in my area. One is Public Safety, and the other General Business. I don't think there is any duplication of TGID's between these two but it got me curious.

Who assigns the TGID's to a system? Is each TGID used in only one System or can the same one be assigned to two or more systems that are in different regions?

 

[UPMan]

In general, every system is an independent, freestanding entity. Talk Group ID's are assigned by the system's radio system administrator. There is generally no coordination of TGID's between different systems (nor is there generally any need for such coordination).

That said, there are some neighboring systems that do coordinate TGID's (for example, Tarrant County has two systems and each can be used as the backup for the other, so in that case TGID's are coordinated but I believe both systems are administered by the same group) but that is likely more the exception than the rule.

 

[hankv]

In general, every system is an independent, freestanding entity. Talk Group ID's are assigned by the system's radio system administrator. There is generally no coordination of TGID's between different systems (nor is there generally any need for such coordination).

That said, there are some neighboring systems that do coordinate TGID's (for example, Tarrant County has two systems and each can be used as the backup for the other, so in that case TGID's are coordinated but I believe both systems are administered by the same group) but that is likely more the exception than the rule.

Thanks, that makes sense.

 

[Forts]

We have two unrelated Motorola Type II systems in my area. One is Public Safety, and the other General Business. I don't think there is any duplication of TGID's between these two but it got me curious.

Who assigns the TGID's to a system? Is each TGID used in only one System or can the same one be assigned to two or more systems that are in different regions?

The same talkgroup could be assigned to many systems within a given region. Let says you have a talkgroup of '48' in use on 3 systems in the same area. The radio will only listen to the '48' talkgroup on the system it's programmed for, which is determined by the SystemID. You mentioned you have 2 systems in use in your area, each of which would have a different SysID assigned to it.

 

[DickH]

In general, every system is an independent, freestanding entity. Talk Group ID's are assigned by the system's radio system administrator. There is generally no coordination of TGID's between different systems (nor is there generally any need for such coordination).

That said, there are some neighboring systems that do coordinate TGID's ...

In the Portland, OR area, there are 4 counties, all with Motorola Type II systems.
Portland TGs are from 16 to 40,000; Clark Co., WA TGs are 40,000 to 50,000; Washington Co., OR and Clackamas Co., OR have a dual system, sharing TGs 50,000 to 65536.
The 3 Oregon counties can and do use each other's TGs.; Portland, OR and Clark Co., WA also share some TGs.

 

[iMONITOR]

Who assigns the TGID's to a system?

Al Gore

 

[ScanDaBands]

Who assigns the TGID's to a system?

I DO.......I am Radio God , creating all that is equal in the frequency world and beyond.

 

[N4DES]

Me too...I am the 813a czar!

 

[WayneH]

Kids, chill out. This isn't the Tavern.

 

[OpSec]

Me too...I am the 813a czar!

He does, along with his other system administrator brethen.