Typically 380–400 MHz (Public Safety) and 410–430 MHz (Commercial).
Time Division Multiple Access ( TDMA ) with 4 user channels on one 25 kHz carrier. Modulation: TETRA MANUAL - Google Drive
A standard manual outlines several critical communication modes: Typically 380–400 MHz (Public Safety) and 410–430 MHz
High-priority calls that preempt other traffic. TETRA MANUAL - Google Drive
Since I cannot directly access your private Google Drive files, I have compiled a report based on the standard contents and technical specifications found in common TETRA user and system manuals. TETRA System & Manual Report 1. Executive Summary