Scroll through the available folders (TMO or DMO) using the navigation keys. Highlight the desired talkgroup and press the key. Initiating a Voice Call

Hytera MT680 TETRA Mobile Terminal Owners Manual R4.0 New The Hytera MT680 is a high-performance TETRA mobile terminal designed for mission-critical communications. It provides reliable voice and data transmission for public safety, transportation, and utility sectors.

The MT680 Plus operates in both TMO (Trunked Mode) and DMO (Direct Mode). Sumitec Comunicaciones TMO (Trunked Mode Operation): Communication through the TETRA network. DMO (Direct Mode Operation): Direct communication between terminals. Gateway & Repeater:

Tested to stringent military standards for shock, vibration, and dust.

Built-in 4W internal speaker supplemented by an optional 10W external public address speaker interface. 2. Hardware Interface and Control Layout