INTERFERENCE APPLIED RESEARCH DATA COLLECTION AND ANALYSIS, SYNCHRONIZATION OF AN FIM WITH A TEST RADAR
A. E. F. Grempler, Parker R. Cope, James L. McKain, Walter C. Jackson, Robert E. Barker · 1963
The synchronizing unit to be described substantially reduces the power measurement error inherent in using a field intensity meter to measure a radar set in an area of strong RF in terference. With the exception of one electromechanical chopper, the unit is all solid state. The circuits are conservatively designed, although relatively new component types, such as hybrid tunnel diode-transistor logic circuits and field effect transistors, are used to advantage. The significant features of the system are an accurate selection of PRF, automatic gate-width control, timing-error indication and false signal indication. Conventional features such as manual selection of gate-width and automatic correction of PRF are also included in the model. When op erated in the automatic gate-width mode, inter ference signals up to 100 db stronger than the desired signal are effectively suppressed. The performance level of the FIM is maintained, and the receiver is always left in the 'on' state if no signal is being received or the SCU is disconnected.