Designed for use in tanks and armoured vehicles, the radio provided three communication channels:
- The A set provided longer range communications within the squadron or regiment.[1]
- The B set or "troop set" provided short range communication between tanks in a troop.[1]
- The IC channel provided internal communication between crewmembers inside the tank.
A rear-link tank in the HQ unit would join its A-set to a wider network, and relay relevant messages to the commander on the B set. This would extend a squadron net to the regiment, or a regimental net to the wider brigade/division