NL RADAR 1420 - Non-linear Junction Detector
Multi-frequency non-linear junction detector NL RADAR 1420 is designed for search for and detection of electronic devices both in active and switched offstate. Multi-frequency harmonic detector searches and analyzes the 2nd and 3d harmonics at each probing frequency. A detector that uses two and more probing signals simultaneously at different frequencies is hereinafter referred to as a multi-frequency mixing detector. It can analyze products called 2nd and 3d order distortions: F1-F2 ; F1+F2: and 2F1-F2; 2F2:-F1, respectively. NL-1420 is an example ofsuch a detector.