SMART Tune VHF Head End Combiner

KEY FEATURES:

• 8/16 Transmit & Receive Channels
• 4 Arterial Leaky Feeder Interfaces
• Individual Arterial Current Meters
• Metered 12, 24 or 48 V Supplies
• Diagnostics and Alarm LERD’s
• AGC Amplifier Fitted

The Head End Combines Surface And Under-ground Radio Channels To Form An Intergrated Radio Network For Mine Communications

DESCRIPTION:

The SMARTTune® VHF Head End Combiner is the core of the Sigma Leaky Feeder system. The unit combines multiple radio channels on the surface and underground into one single voice and data network.

With the option of either 8 or 16 repeater channels, surface communications can be linked into the underground leaky feeder system via one or more of the arterial cables within the mine shaft, as well as underground communication, transferred to the surface in the same manner.

With the addition of the SMARTTune® AGC amplifier, the gain of each arterial is held at a stable level. The Head End also has ability to feed a surface or a Sigma Area Coverage Amplifier to provide enhanced local coverage above ground.

An external power supply is required in order to power the first few amplifiers connected to each arterial underground, thereafter underground power supplies are required for further amplifiers in the chain.

There are four Head End variants available:

SPECIFICATION: