FIELD: digital communication equipment. SUBSTANCE: device has dual-mode transmitter for transmission of information signal using frequency-modulation signal, when it operates in frequency modulation mode, and using multiple-access signal, when it operates in multiple access mode. In addition device has dual-mode receiver for reception of information signal using frequency-modulation signal, when it operates in frequency modulation mode, and using multiple-access signal, when it operates in multiple access mode. Dual-mode receiver has digital demodulator for production of information signal from received FM signal in FM mode and for production of information signal from received multiple-access mode signal in multiple-access mode. EFFECT: band-pass filtration without loss of information in carrier frequency. 6 cl, 29 dwg, 3 tbl
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Authors
Dates
1999-11-27—Published
1995-12-19—Filed