Multi-tone jammer

Details Multi-tone jammer Multi-tone jammer

1980-08-27

1982-07-27

Bookbinder, Marc E.

Telecommunications

Interference signal transmission

331 47, 331 78, 343 18E, 375 1, 455108, H04K 300, H04B 104

Patent

active

043421199

ABSTRACT:
A waveform capable of jamming some or all of the channels of a multiple channel receiver is developed by a multi-tone jammer that uses a digital counter and a digital/analog converter to generate a ramp voltage for a voltage controlled oscillator (VCO). The output of the VCO is modulated by a pin diode attenuator. The attenuator is controlled by a pattern generator synchronized with the digital counter to blank the retrace and any portion of the sweep to provide a partial band tone jamming spectrum. The digital counter is driven by a MHz reference signal generator and the sweep repetition rate is greater than the circuit bandwidth.

REFERENCES:
patent: 3706940 (1972-12-01), Hausner
patent: 3731198 (1973-05-01), Blasbalg
patent: 3955200 (1976-05-01), Miller
patent: 3971923 (1976-07-01), Linder
patent: 4017856 (1977-04-01), Wiegand
patent: 4052673 (1977-10-01), Herzog

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