Axell Wireless CSR438 TETRA repeater
Enhancements have been made to Axell Wireless’s CSR438 TETRA repeater. The repeater does not require hardware upgrades and therefore can be reconfigured remotely using software updates.
The enhancements provide an extension of the company’s range of digital TETRA repeaters, which includes band and frequency shifting capability used to enhance the reach of a TETRA base station.
The enhancements allow the digital repeater to be configured via a graphical user interface to operate in either ‘band’ or ‘channel’ selective modes. Systems integrators and public safety operators can then deploy systems in a typical 5 MHz band selective mode and, to improve selectivity and reduce noise at a later stage, reconfigure the unit to operate with a set of channels within the band.
The switch from ‘band’ selective to ‘channel’ selective, or vice versa, can be done through a local connection to the repeater or remotely via a wireless modem or ethernet connection. Whilst operating in ‘channel’ selective mode the repeater provides filtering for up to eight channels.
The digital repeater is designed to support public safety networks and PMR systems for security applications either within buildings or critical infrastructure facilities such as metro (underground) networks, rail or road tunnels, airports, and energy or chemical plants.
Its broad frequency capability allows it to operate from 380 to 470 MHz in bands of up to 20 MHz in bandwidth. Equally operating in ‘channel’ selective mode, a narrow band part of the spectrum can be selected through a GUI interface.
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