Tunnel Radio of America
ULTRACOMM UNDERGROUND MINE COMMUNICATION SYSTEMS

UltraComm Complete Wireless Coverage-

MSHA and West Virginia Approved

Underground Mining compliancy with Miner Act of 2006

UHF Underground Radio Systems

  • Multi-Channel Radio technology offering unmatched 500 MHZ radio coverage and range
  • Proven operational record, hundreds of miles installed
  • Provides increase in manpower efficiency, safety and productivity
  • Mine-Ax "Bird Dog" mobile tracking, utility monitoring and control capable
  • High reliability design, simple to install and service, fully mine tested
  • MSHA and West Virginia Approved

As the most experienced supplier of Mine radio technologies, Tunnel Radio has again stepped out in front with our patented UltraComm TR-500 MHz radio system. Radio tests have confirmed that these new bands offer great advantages over lower frequency systems due to their ability to transmit great distances including around corners, in confined spaces, and beyond barriers.

UltraComm TR-500 - 500 MHz systems provide vastly improved obstruction passage over older VHF technologies. Parked equipment, belts, or shields will stop VHF signals DEAD where the powerful compact UHF wave will pass on ensuring the best possible link. In most installations, UltraComm provides 100 - 500% more coverage than competitive systems.

Propogation of Wireless Signal In Tunnel

UltraComm is the perfect choice for portable or mobile voice and data systems for your mine. UltraComm offers an integrated wireless network of voice, mobile and production data. Fixed utility monitoring systems provide for maximum efficiency and safety. Integrated to the phone and/or computer network, UltraComm provides the virtual window needed by management to view the unseen world of day to day operations throughout the mine. Timely problem resolution and the ability to communicate decisions instantly to the right person at the right time has now proven to transform your mine.

In the event of an Emergency...

UltraComm compatible portable radios employ an emergency alert feature that may be initiated from the portable or mine wide from the dispatcher. Individual units may be “pinged” to determine operability and transmissions may be date / time logged to track use. Our customers continue to expand, and relay the same message: Tunnel Radio works!

Key Benefits

  • Superior lateral coverage over conventional VHF systems
  • Coverage to keep you in contact with your drill rig operators
  • TR-500 UHF systems require fewer cables and amplifiers
  • Reduces costs while dramatically increasing coverage area
  • Provides the system radio coverage needed in mining with MSHA approved portable radios

Features

  • Latest technology multi-channel amplifiers
  • 400 - 500 MHz operation
  • External LED status of RF power
  • Fault monitoring system
  • Up to 2,500 ft (762 m) lateral range UHF frequencies
  • Noise free Conrad™ antenna compatible
  • 6-32 channel video capable
  • Data and control / monitoring option
  • Voice Alert and Stat-Alert compatible
  • TR-500 UHF is compatible with our TMS Tunnel Monitoring System
  • Mine-Stat monitoring and control compatible
  • Compatible with existing surface UHF systems

Specifications

TR-500 Specifications 
Frequencies
465-470 MHz inbound
448-455 MHz outbound
Gain - 400-500 MHz
30 dB nominal
PO UHF
+18 dBm nominal
Current draw
60 milli-amps @ 13 VDC
Voltage
40 VDC Maximum/13 VDC IS
Noise Figure
4 dB
Spacing Calculations
Maximum recommended amplifier spacing
1100-1600 feet
Loss at max/min
25.5 dB / 20.5 dB
Attenuation @ 500 MHz
1.5 dB per 100 feet
Coupling loss @ 500 MHz
65 dB @ 20 feet
Loop resistance
2 Ohms/1000 feet
Impedance
50 or 75 ohms
Diameter
.510"
Jacket Type
PVC
Bend Radius
6" minimum

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