Wireless Tecpro enables members of the group to talk to and listen to all the other members simultaneously, using wireless beltpacks. In addition an unlimited number of listen-only wireless beltpacks can be added to the system, for personnel who only need to monitor conversations. An interface is in the final stages of development which replaces one of the full-duplex users with a connection to a wired Tecpro intercom circuit, extending the conference to the users on the wired circuit.
The system operates on a primary UHF frequency of 869.525 MHz, at a power of 200mW maximum, giving an approximate coverage of 300-400m depending on the environment. A further two EU licence exempt frequencies, are user selectable on 863.500 MHz and 864.500 MHz operating at a power of 10mW, giving an approximate coverage of 80-100m, again, dependent upon the environment within which they are being used.
(Jim Evans)