A multi-band tetra digital trunking detection method and device
A technology of digital trunking and detection device, applied in transmission monitoring, electrical components, transmission system, etc., can solve the solution description of non-baseband signal processing, not involving receiver device, radio frequency reception index of satellite navigation receiver radio frequency signal can not be solved. Meet the requirements of TETRA digital trunking detection device and other issues
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[0082] (1) Basic composition and working process
[0083] The multi-band TETRA digital trunking detection device is composed of a multi-band receiver RF front-end, a digital intermediate frequency processing board, a reference source, a secondary power supply, a front panel of the chassis and a fan. The RF front end of the multi-band receiver can receive multiple signals in any frequency band at the same time, and the two antenna ports receive the uplink frequency band signal and downlink frequency band signal in the frequency band respectively. The digital intermediate frequency processing board is responsible for the processing of received data and the control of the whole machine, and provides external interfaces. The reference source provides the base clock. The secondary power supply provides working power for each module. The basic composition of the multi-band TETRA digital trunking detection device is as follows: image 3 shown.
[0084] The multi-band TETRA digita...
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