Title: Device for a radio station comprising a jammer

Abstract: A jammer comprises a frequency modulated transmitter for jamming, a receiver and a mixer for the receiver. One input of the mixer is connected to a receiver antenna circuit and a record input is connected to the output of the transmitter, the carrier of which is frequency modulated according to an arbitrary function of time. The receiver is tuned to receive a frequency including side bands which lie within one range of beat frequencies produced by the mixer, varying in dependence on the transmitter modulation wave. An indicating device indicates the presence of output signals of the receiver unit in dependence on the carrier frequencies received which lie within approximately the range of frequencies transmitted by the transmitter.

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Inventors: Weidstam, Eskil (Stockholm, SW)

Application Number: 024912
Filing Date: 1970-03-17
Publication_date: 1976-04-27
Assignee:
Primary Class(es): 342/14
Other Classes:
US Patent Ref:

2965896	Dec, 1960	Wright et al.	343/14.
3109172	Oct, 1963	Hardinger et al.	343/14.
3195130	Jul, 1965	Adrian	343/18.

Other Refs:
Primary Examiner: Hubler, Malcolm F.
Assistant Examiner:
Attorney: Burns; Robert E., Lobato; Emmanuel J., Adams; Bruce L.