Validate NAC Against System ID

Trunking System

ASTRO 25

Causes the radio to validate the upper 8 bits of the 12-bit System ID against the upper 8 bits of the 12-bit NAC (Network Access Code) received on the Trunking - Control Channel. If a match is not found, the radio does not attempt to register / affiliate to that Trunking site.

When disabled, the radio is prevented from validating the upper 8 bits of the 12- bit System ID against the upper 8 bits of the 12-bit NAC.