The radio system is used in order to transmit information from a fixed station to a mobile station and/or persons.
This system is approved in accordance with Europe-Standard:
BVS-Nr. 92.C.1212X
for SYST EEx ia I
or SYST EEx ib I
The transmission bands have a range between 27 MHz and 35 MHz in order to be insensitive to electromagnetic disturbance.
The coaxial cable (leaky feeder) is connected to the fixed station and from this point it is laid out along the communication path. A radiating coaxial cable (leaky feeder) is connected to the fixed station and from there it is cabled along the way which is intended to be used.
The vehicle stations and transceivers are coupled to the fixed station with their antenna via the leaky feeder.
Even with the long distances of 5 m between the mobile antenna and leaky feeder cable, trouble-free operation is guaranteed in difficult conditions.
The specially constructed microphones and loudspeakers offer an excellent voice communication and high syllable intelligibility.
Data radio transmission is serially effected by data modems at the radio station with an interface in accordance with "Bergbau Betriebsblatt BB 22444".
With the use of the amplifier station it is possible to extend the radio network to a working range of approximately 10 km. The non-amplified range is about 2,5 km.
The coupling to the following F+H systems provides an area-covering communication network and data transmission:
- Intercom system L110/L120
- Telephones in underground mining with iVT2
- Data transmission systems ZM51
- Compact module Z51K-2112 for telecontrol and automation
