Federal stuff is going to be p25 phase 2, usually AES encrypted. Harris or Motorola, and at one point Thales (previously Racal.)
Some other brands end up being used like cobham or bendix but those are usually for aviation.
Tetra isn’t used by us LE. There are military encryption schemes, some of which are classified or controlled occasionally used by feds. Mostly tho you're looking at encrypted voice over data using mobile phones tho. Cellcrypt Inc, for example. Not many investigators lug around a radio to call agents in the field unless they need interoperability with other agencies or tactical communications using local infrastructure.
During the Obama inauguration the Thales liberty triband was used with AES. I think most agencies dumped the Thales Libntry for Harris tri band radios or Motorola now, which is sad because as a result the liberty is basically a dead end platform
Some other brands end up being used like cobham or bendix but those are usually for aviation.
Tetra isn’t used by us LE. There are military encryption schemes, some of which are classified or controlled occasionally used by feds. Mostly tho you're looking at encrypted voice over data using mobile phones tho. Cellcrypt Inc, for example. Not many investigators lug around a radio to call agents in the field unless they need interoperability with other agencies or tactical communications using local infrastructure.
During the Obama inauguration the Thales liberty triband was used with AES. I think most agencies dumped the Thales Libntry for Harris tri band radios or Motorola now, which is sad because as a result the liberty is basically a dead end platform