UltraComm Complete Wireless Coverage-
MSHA and West Virginia Approved

UHF Underground Radio Systems
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.

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.
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!
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 |