Mine Site Technologies is a solutions provider, specializing in the development and supply of technology, and services, to the mining industry. Our particular areas of expertise include underground communications, remote blasting systems, mine tagging & WiFi tracking systems and cap lamps; as well as high data wireless mesh systems for open pit and surface communications.

The Transmission System (LF)

The Transmission System, in its simplest form, consists of the following:

  • An IBM compatible PC running Windows
  • A proprietary Modulator Unit
  • PEDCALL Software package
  • VHF Leaky Feeder Headend
  • Leaky Coax Antenna or Distributed Antenna

Leaky Feeder Schematic

PEDCALL PC & Software – The Operator Interface

The Windows (95, 98, or NT) computer which is running PEDCALL controls the Transmission System. The PEDCALL software provides the interface from the operator to the system in a simple and efficient manner.
Modulator Unit

The Modulator Unit, as its name suggests, modulates the encoded information and produces a frequency shifted output signal. The Modulator provides the interface between the PC and the transmission system.
The Transmitters

The VHF Leaky Feeder system version requires high quality signal from a dedicated channel which is used to carry the encoded PED signal.
Antenna

This Leaky Feeder Version uses the existing leaky coax antenna network, or distributed antenna system, used for the two way voice and data transmissions in the mine.

Minesite Technologies: 25 27 Whiting St Artarmon NSW 2064 AUSTRALIA Phone: +61 2 9437 4399 Fax: +61 2 9437 5688 Email: mst@minesite.com.au