GB1046923A - Improvements in radio jamming apparatus - Google Patents

Improvements in radio jamming apparatus

Info

Publication number
GB1046923A
GB1046923A GB544964A GB544964A GB1046923A GB 1046923 A GB1046923 A GB 1046923A GB 544964 A GB544964 A GB 544964A GB 544964 A GB544964 A GB 544964A GB 1046923 A GB1046923 A GB 1046923A
Authority
GB
United Kingdom
Prior art keywords
jamming
oscillator
receiver
feb
output
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB544964A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Compagnie Francaise Thomson Houston SA
Original Assignee
Compagnie Francaise Thomson Houston SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Compagnie Francaise Thomson Houston SA filed Critical Compagnie Francaise Thomson Houston SA
Publication of GB1046923A publication Critical patent/GB1046923A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K3/00—Jamming of communication; Counter-measures
    • H04K3/20—Countermeasures against jamming
    • H04K3/28—Countermeasures against jamming with jamming and anti-jamming mechanisms both included in a same device or system, e.g. wherein anti-jamming includes prevention of undesired self-jamming resulting from jamming
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
    • G01S7/36—Means for anti-jamming, e.g. ECCM, i.e. electronic counter-counter measures
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K3/00—Jamming of communication; Counter-measures
    • H04K3/40—Jamming having variable characteristics
    • H04K3/41—Jamming having variable characteristics characterized by the control of the jamming activation or deactivation time
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K3/00—Jamming of communication; Counter-measures
    • H04K3/40—Jamming having variable characteristics
    • H04K3/42—Jamming having variable characteristics characterized by the control of the jamming frequency or wavelength
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K3/00—Jamming of communication; Counter-measures
    • H04K3/40—Jamming having variable characteristics
    • H04K3/45—Jamming having variable characteristics characterized by including monitoring of the target or target signal, e.g. in reactive jammers or follower jammers for example by means of an alternation of jamming phases and monitoring phases, called "look-through mode"

Abstract

1,046,923. Radio signalling. COMPAGNIE FRANCAISE THOMSON-HOUSTON. Feb. 10, 1964 [Feb. 8, 1963], No. 5449/64, Heading H4L. In an apparatus for jamming radio signals a panoramic receiver 2 including a frequencyswept oscillator 5 scans the required frequency band, any received signal, up to a maximum number as determined by a counter (not shown) operating on the A.G.C. circuit, producing an output from mixer 3 which is supplied to a control circuit 4. The device 4 stops the oscillator 5 for a short period, de-sensitizes the receiver 2 and operates the transmitter 6 to which the output of the oscillator 5 is fed after frequency conversion, whereby the appropriate jamming signal consisting of a noise-modulated carrier wave is transmitted from aerial 7. Certain carrier frequencies within the band may be excluded from jamming as by arranging that the receiver is de-sensitized at these frequencies. The scanning frequency may be fixed or variable. The effect of varying the scanning frequency and/or the duration of jamming in each cycle is discussed.
GB544964A 1963-02-08 1964-02-10 Improvements in radio jamming apparatus Expired GB1046923A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR924154A FR1356993A (en) 1963-02-08 1963-02-08 Improvements to jamming devices

Publications (1)

Publication Number Publication Date
GB1046923A true GB1046923A (en) 1966-10-26

Family

ID=8796614

Family Applications (1)

Application Number Title Priority Date Filing Date
GB544964A Expired GB1046923A (en) 1963-02-08 1964-02-10 Improvements in radio jamming apparatus

Country Status (6)

Country Link
BE (1) BE643045A (en)
CH (1) CH418415A (en)
DE (1) DE1288656B (en)
FR (1) FR1356993A (en)
GB (1) GB1046923A (en)
NL (1) NL144112B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU1841343C (en) * 1968-09-02 2023-04-07 Акционерное общество "Центральный научно-исследовательский радиотехнический институт имени академика А.И. Берга" Method for creating flickering interference to radar guidance systems with continuous radiation and sinusoidal frequency modulation

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2240213C2 (en) * 1972-08-16 1982-04-29 C. Plath Gmbh Nautisch-Elektronische Technik, 2000 Hamburg Radio transmission jamming system restricted to given area - has direction finder with echo oscillator and directional transmitter
DE3110542C2 (en) * 1981-03-18 1984-01-19 Siemens AG, 1000 Berlin und 8000 München Radio relay system
DE102009006861A1 (en) * 2009-01-30 2010-08-12 Eads Deutschland Gmbh Responsive-jammer for executing interference cycles in communication connection, has receiving antenna protection switch controlled by control device and provided for protecting receiver during radiation of interference signals

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2653222A (en) * 1944-08-04 1953-09-22 Everard M Williams Radio jamming device
US2885543A (en) * 1945-01-27 1959-05-05 Everard M Williams Automatic sweeping and jamming radio equipment
US2643329A (en) * 1945-05-14 1953-06-23 Standard Telephones Cables Ltd Tracking system between receiver and transmitter
US2985754A (en) * 1946-05-04 1961-05-23 Itt Frequency responsive transmitterreceiver system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU1841343C (en) * 1968-09-02 2023-04-07 Акционерное общество "Центральный научно-исследовательский радиотехнический институт имени академика А.И. Берга" Method for creating flickering interference to radar guidance systems with continuous radiation and sinusoidal frequency modulation
RU1841344C (en) * 1969-01-29 2023-04-07 Акционерное общество "Центральный научно-исследовательский радиотехнический институт имени академика А.И. Берга" A method for creating flickering interference for radars and seekers with continuous or quasi-continuous radiation using target selection by Doppler frequency shift
RU1841345C (en) * 1973-10-17 2023-04-07 Акционерное общество "Центральный научно-исследовательский радиотехнический институт имени академика А.И. Берга" Device for creating flickering interference and method for their formation

Also Published As

Publication number Publication date
BE643045A (en) 1964-05-15
CH418415A (en) 1966-08-15
DE1288656B (en) 1969-02-06
NL6401042A (en) 1964-08-10
FR1356993A (en) 1964-04-03
NL144112B (en) 1974-11-15

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