Electrical and electronic instruments and apparatuses for testing, measuring, generating and monitoring electrical signals, namely, oscilloscopes, logic analyzers, logic analyzer mainframes, logic analyzer modules, logic protocol analyzers, optical modulation analyzers, bit error rate testers, spectrum analyzers, digital multimeters, digital signal pattern generators, arbitrary waveform generators, arbitrary function generators, vector signal generators, signal pulse generators, multi-format optical transmitters, RF power meters, electrical signal amplifiers, electrical signal analyzers, electrical signal digitizers and data converters, electrical signal generators, electrical signal frequency counters, electrical signal sampling modules, electrical signal waveform monitors, electrical power analyzers, electrical power supplies, hybrid integrated circuit modules, MPEG generators and analyzers, optical signal sampling modules, optical signal analyzers, picture quality analyzers, RF and microwave power meters, video signal analyzers, video and audio signal monitors, video signal waveform rasterizers for viewing, measuring, and testing electrical and RF signals, video quality monitors, video waveform monitors and analyzers, video and audio signal content verifiers for analyzing the signal quality of video and audio signals; video network monitoring equipment, namely, equipment for quality of experience and quality of service monitoring of video and audio in advanced video networks; accessories for electrical and electronic test, measuring, and monitoring instruments and apparatuses, namely, electrical signal probes, probe tips, probe adapters, electrical signal attenuators, electrical signal termination devices, electro-optical signal converters, probe holders and positioners, surface mount device (SMD) interconnects, digital logic probes, battery packs, battery chargers, electrical power cords, electric wires, electrical connection leads, electric cables and connectors therefor, instrument rackmount kits comprised primarily of mounts specially adapted for all the foregoing goods, instrument carts, namely, wheeled carts specially adapted for all the foregoing goods, and instrument cases and protective covers, namely, cases and protective covers specially adapted for all the foregoing goods; computer application software for MPEG signal analysis, video stream analysis, and waveform editing; oscilloscope, logic analyzer and spectrum analyzer software for ensuring standards compliance, power measurement and analysis, jitter, noise and timing analysis, vector signal analysis, serial data link analysis, communications standards testing, USB testing, and data capture, analysis, and documentation