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Realization of O-QPSK IF receiver for small and medium capacity digital radio relay systems

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3 Author(s)
P. Manojlovic ; Inst. of Microwave Techniques & Electron., Novi Beograd, Serbia ; M. Peric ; D. Simic

We describe the receiver for O-QPSK modulation with coherent detection for small and medium capacity digital radio relay systems (DRRS). Its characteristics are: large dynamic range (from -70 dBm to 0 dBm), large carrier recovery pull in range (at least ±700 kHz) and resistance to cochannel, adjacent channel and continuous wave interference according to ETSI standards. Very important is that the receiver is designed for an extended temperature range from -30°C to +55°C. This receiver is used in Institute IMTELs DRRS RRU13A and RRU23A

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Telecommunications in Modern Satellite, Cable and Broadcasting Service, 2001. TELSIKS 2001. 5th International Conference on  (Volume:2 )

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