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Monday, 04 February 2019
  • Easy to use
  • Cost efficient
  • Ecological
A simple training tool for parachute schools.
Successfully tested !


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Ground-Text - Through-Ground Radio Modem

DESCRIZIONE

ground-text01Ground-Text is a through-ground Radio Modem that was developed from the Water-Text Underwater system.
Ground-Text has been optimised to operate 2-way through rock, soil, reinforced concrete and other solid materials. Ground-Text can be readily tailored to a variety of applications.

MEETING THE CHALLENGES OF WIRELESS COMMUNICATION
We understand the challenges that operators face when designing and specifying systems for an operational scenario. This leading edge technology provides substantial operational and cost-effective solutions to the Defence & Homeland Security community.

APPLICATIONS

MINING DISASTER/EMERGENCY / TERRORIST ATTACK ON UNDERGROUND SYSTEMS
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WIRELESS MONITORING OF UNDERGROUND / SEARCH & RESCUE - UNDERGROUND BY AIR
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Trials took place in the Glasgow
Underground in May 08
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Trials and a demonstration, with the latest
version of Ground-Text took place
in the London Underground in April 2009

The first through-ground tests took place
at Birkhill Fireclay Mine in August 2007
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FEATURES
  • Transceiver
  • Fast propagation
  • Can be connected in a network
  • Shorter download times
  • GSM option
BENEFITS
  • Two way communications
  • Can be interfaced to text entry terminal for comms link
  • Reduction in Doppler shift
  • Extended coverage
  • Global access
TECHNICAL SPECIFICATIONS

Performance

  • Data rate = 100 bits/sec half duplex
  • Multiplexing – multiple units uniquely addressable
  • Modems can be connected in a network
Antenna
  • Loop
  • Options available for extended range
Data
  • RS 232 data interface
Physical (typical)
  • Housing - application specific
Power Requirements
  • 24V external power or battery pack to specific application
  • 3W receiving / 12W transmitting
Environmental
  • Temp. operating -10 to + 35ºC
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