The SHF Communication Technologies EA40 GIG Error Analyzer is a tool for the detection of errors in gigabit transmission systems. Used in conjunction with the SHF BPG 40 A Bit Pattern Generator, a system for bit error rate tests can be formed. Ease of use is ensured by simple hardware functions allowing phase adjustments or input threshold variations of the analyzer. It is therefore ideal for the research and development of high speed logic MMICs and digital communications systems. Further applications include the testing of high rate PCM and SDH systems as well as digital optical components and sub-nanosecond pulse engineering.