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Europe-wide digital standards

Article Abstract:

Marconi Mobile has developed the Terrestrial Trunked Radio (TETRA) system for the digital transfer of voice communications and data. TETRA does not suffer from the shortcomings of other wireless systems such as low data transfer rates or the absence of instant call set-up. TETRA will offer national coverage, excellent voice quality, instant call set-up and corporate VPNs. It can replace four discrete pieces of in-vehicle communications equipment, the mobile data terminal, the PMR dispatch telephone, the cellular phone and the pager.

Digital Radios

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Digital network

Article Abstract:

The Mobile Radio Business division of Marconi Mobile has introduced the DTR-100 series, a new digital air traffic control (ATC) VHF radio transceiver. The DTR-100 is intended to provide for the requirements of ATC agencies throughout the world. The transceiver can be configured by using software for voice networks with traditional AM-DSB modulation, data-only sub-networks for connection to an aircraft, integrated voice and data networks and VHF data network for CNS/ATM.

Mobile & Base Transceivers

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On the wire

Article Abstract:

New Zealand firm Tait Electronics Ltd has introduced a new range of trunked radio systems which can be used for airport voice and data communication. Tait Liberty systems are able to add channels for more calling capacity and can add sites for extra coverage due to its modular design. The systems are based on the open standards MPT1327 format and can provide a complete range of voice and data call functions.

New Zealand, General Radio Equip

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