Tunnel Radio
Tunnel Radio communications systems keep you connected at all times under all types of conditions. The local area leaky feeder UHF/VHF radio system is rugged and dependable and is specifically designed to provide clear communications throughout the entire rig or structure. Together, RigNet and Tunnel Radio are dedicated to helping you increase manpower efficiency, safety and productivity.

For more specifications:
http://www.rig.net/wp-content/uploads/2016/04/tunnel-radio.pdf