HLI

ELECTRONIC COMMUNICATIONS EQUIPMENT FOR USE IN TRANSMITTING VOICE AND DATA SIGNALS, INCLUDING: TRANSMITTERS, RECEIVERS, TELEMETRY SYSTEMS, LINE CONDITIONERS, FILTERS, LOGIC CIRCUITS, SWITCHING CIRCUITS, TELEPHONE SECURITY DEVICES, DIALED NUMBER RECORDERS, THRESHOLD EXTENDERS AND RATIOMETERS: AND TEST EQUIPMENT FOR ELECTRONIC COMMUNICATIONS EQUIPMENT INCLUDING DEVICES FOR: TRANSMISSION MEASUREMENT, TELEPHONE SYSTEM ANALYSIS, PHASE AND PHASE JITTER MEASUREMENT, AMPLITUDE MEASUREMENT, SIGNAL DISTORTION MEASUREMENT, TIME JITTER SIMULATION, AND NOISE MEASUREMENT

ELECTRONICS ENGINEERING ADVICE AND CONSULTATION SERVICES, AND ELECTRONIC DESIGN SERVICES