NELC Bit Error Rate (BER) Monitor Unit: Description, Operation, and Maintenance.
NAVAL ELECTRONICS LAB CENTER SAN DIEGO CA
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This document provides detailed information necessary to the application and maintenance of the NELC Bit Error Rate BER Monitor Unit and its associated recorder which together make up a link monitoring kit. The BER Monitor Unit provides a transmit code generator for sourcing equipment or link and a receive monitor which automatically bit-and code-locks to the received data stream and compares input against its reference code generator to determine number of errors introduced in link. The unit provides a choice of rates, samples, sizes, and interfaces. It outputs error count in real time on LED display and permanently on paper tape. The arrangement allows time-correlating of results from different receive sites after the test has been completed. Author
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