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- Scientific Atlanta 4657
4657 Error Rate Analyzer
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Scientific Atlanta 4657 Overview
The Scientific Atlanta 4652 Bit Error Rate Test Set is the receiver portion of the BERTS system. DS-3 input (bipolar signal) rate is 44.736-Mbit/s ±20 ppm. NRZ input (unipolar signal) 40 to 47-MHz at 1.0 to 2.0 V p-p, impedance is 75-ohms. Synchronization is Automatic.