UNDER GROUND RADIO

The WORLD FIRST portable MF band radio transceiver

Ferra L1

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

Buy FERRA

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