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UNDER GROUND RADIO

The WORLD FIRST portable MF band radio transceiver
FERRA
Tilda Publishing
The system Ferrа is intended for radio communication in mines, diggings and caves.

Our results were confirmed by tests in the anthracite mines with significant inclusion of higly wet rocks.
FERRA
Underground radio communication
VOICE & SMS
50 CM ANTENNA, LONG DISTANS
  • 1200
    METERS THROUGH THE ROCK
  • 5000
    METERS ALONG THE MINE
  • 120
    KILOMETERS AT SURFACE
The system XFERRA has been designed by scientists of the research-and- production company HF communication under direction of PhD Dmitry Fedosov with support of Foundation for Assistance to Small Innovative Enterprises (FASIE) and the Omsk region Government
PATENTS
Made on
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