ELECTRONIC RECONNAISSANCE SYSTEMS FOR MILITARY USE ON LAND, SEA, AND AIR, ELECTRONIC WARFARE COUNTER MEASURE SYSTEM, ELECTRONIC SEISMIC SYSTEM FOR MILITARY AND NON-MILITARY GEOLOGICAL EXPLORATION, AND ELECTRONIC CALIBRATION SYSTEM FOR MILITARY AND NON-MILITARY APPLICATIONS, COMPRISING SOME OR ALL THE FOLLOWING, NAMELY, DIRECTION FINDING (DF) SUBSYSTEMS FOR PROVIDING PRECISE INFORMATION ON THE DIRECTION OF INCOMING SIGNALS, INSTANTANEOUS FREQUENCY MEASUREMENT (IFM) SUBSYSTEMS FOR SIMULTANEOUSL...

COMMUNICATIONS EQUIPMENT, NAMELY RECEIVERS, RECEIVING SYSTEMS, ANTENNA S,SIMULATORS, RECEIVER/ANALYZERS, COMMUNICATIONS AND SIGNAL PROCESSIN G EQUIPMENT, SPECTRUM ANALYZERS AND RECEIVERS, ELECTRONIC COUNTER AND FREQUENCY STANDARD CALIBRATION SYSTEMS, AND DIGITAL SEISMIC SYSTEMS