CN203301497U - Portable signal jammer - Google Patents
Portable signal jammer Download PDFInfo
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- CN203301497U CN203301497U CN2013202244092U CN201320224409U CN203301497U CN 203301497 U CN203301497 U CN 203301497U CN 2013202244092 U CN2013202244092 U CN 2013202244092U CN 201320224409 U CN201320224409 U CN 201320224409U CN 203301497 U CN203301497 U CN 203301497U
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- power amplifier
- jammer
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Abstract
The utility model relates to the field of wireless communication and provides a portable signal jammer. The portable signal jammer comprises a power supply module, a power supply control module, a base-band module, a frequency conversion module and a power amplifier module. The power supply module is respectively connected with the base-band module and the power amplifier module, the power supply control module is connected between the power supply module and the power amplifier module, and the frequency conversion module is connected between the base-band module and the power amplifier module. The portable signal jammer is advantageous in that interfering frequency seamless coverage can reach up to 40-1000 MHz, a product with full-frequency-range seamless coverage interference can be achieved in one jammer, signals with any frequency points discovered via monitoring can be interfered, and a function of interference is strong; and many interference signal debug modes are provide, such as FM, AM, CW, ASK, PSK, GSMK and FSK and the like, and an against cheating effect and work efficiency are raised greatly.
Description
Technical field
The utility model relates to field of wireless communication, refers to especially a kind of portable signal jammer.
Background technology
In recent years, the radio tool kind that cheats at one's exam is various, disguise is become better and better, Cheating Phenomenon is more and more serious, mobile phone interferometer in the market can only meet the shielding of the radio cheating tool that uses the cheating of mobile phone frequency range to be disturbed, can not scan the radio cheating tool of other frequency ranges, for example intercom.There is following deficiency in prior art: the frequency range of 1, disturbing, and frequency is limited; 2, can only active interference; 3, a plurality of band interference simultaneously; 4, the interference signal modulating mode is limited; 5, narrow frequency modulation disturbs.
The utility model content
The purpose of this utility model is to provide the portable signal jammer that a kind of interference function is strong, debugging mode is many.
The technical solution of the utility model is achieved in that a kind of portable signal jammer, comprise power module, energy supply control module, baseband module, frequency-variable module and power amplifier module, described power module is connected with power amplifier module with baseband module respectively, be connected with energy supply control module between described power module and power amplifier module, be connected with frequency-variable module between described baseband module and power amplifier module.
the beneficial effects of the utility model are: after adopting said structure, because power module is connected with power amplifier module with baseband module respectively, be connected with energy supply control module between power module and power amplifier module, be connected with frequency-variable module between described baseband module and power amplifier module, baseband module produces low frequency signal and is transferred to frequency-variable module, frequency-variable module produces local oscillation signal simultaneously, frequency-variable module carries out mixing to low frequency signal simultaneously, amplify, filtering, produce finally needed interference radiofrequency signal, then by power amplifier module, the interference radiofrequency signal is amplified, then launch by the SMA radio frequency interface, the interfering frequency seamless coverage can reach 40-1000MHz like this, can realize the product that the full frequency band seamless coverage disturbs on a jammer, any frequency signal of can interference monitoring finding, interference function is strong, the interference signal debugging mode is many, and the more modulation patterns such as adjustable FM, AM, CW, ASK, PSK, GSMK, FSK, greatly improved anti-cheating effect and operating efficiency.Energy supply control module is used for controlling energising and the outage to power amplifier module again, simultaneously the overcurrent of power amplifier module, overvoltage, short circuit, open circuit warning message are fed back to baseband module, and then by baseband module, warning message is passed to main control system, after warning, energy supply control module cuts off the power amplifier module power supply automatically, has apparatus overheat protection automatically, antenna short circuit and open circuit is protected automatically, the alarm indication function; Have the network communication interface with monitoring system, communication protocol is provided, according to instruction, carry out work.
Description of drawings
in order to be illustrated more clearly in the utility model embodiment technical scheme, in below describing embodiment, the accompanying drawing of required use is briefly described, apparently, accompanying drawing in the following describes is only that this practicality is in order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, below will the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making under the creative work prerequisite the every other embodiment that obtains, and all belong to the scope of the utility model protection.
a kind of portable signal jammer as shown in Figure 1, comprise power module 4, energy supply control module 5, baseband module 1, frequency-variable module 2 and power amplifier module 3, described power module 4 is connected and is connected with power amplifier module with baseband module 1 respectively, be connected with energy supply control module 5 between described power module 4 and power amplifier module 3, be connected with frequency-variable module 2 between described baseband module 1 and power amplifier module 3, baseband module 1 produces low frequency signal and is transferred to frequency-variable module 2, frequency-variable module 2 produces local oscillation signal simultaneously, 2 pairs of low frequency signals of frequency-variable module carry out mixing simultaneously, amplify, filtering, produce finally needed interference radiofrequency signal, then disturb radiofrequency signal to amplify by 3 pairs of power amplifier modules, then launch by the SMA radio frequency interface, the interfering frequency seamless coverage can reach 40-1000MHz like this, can realize the product that the full frequency band seamless coverage disturbs on a jammer, any frequency signal of can interference monitoring finding, interference function is strong, the interference signal debugging mode is many, and the more modulation patterns such as adjustable FM, AM, CW, ASK, PSK, GSMK, FSK, greatly improved anti-cheating effect and operating efficiency.This portable signal jammer in use, by with main frame, potato masher antenna and support triangle frame, coordinating and can use, but rapid deployment at the examination scene or particular surroundings carry out signal and automatically disturb.
Described power module 4 is used for powering to the jammer modules,, in order to prevent from respectively organizing the interference between different power voltage, all uses independent current source between each module; Described energy supply control module 5 is used for controlling energising and the outage to power amplifier module 3, simultaneously the overcurrent of power amplifier module 3, overvoltage, short circuit, open circuit warning message are fed back to baseband module 1, and then by baseband module 1, warning message is passed to main control system, after warning, energy supply control module 5 cuts off power amplifier module 3 power supplys automatically.
Described baseband module 1 is used for controlling the corresponding local oscillation signal of PLL chip generation of frequency-variable module 2, and the feedback information of processing energy supply control module 5, control simultaneously the work of energy supply control module 5, described baseband module 1 is provided with the DDS chip, the DDS chip produces the base band low frequency signal, so frequency switching time can reach nanosecond, the signal stepping can be as accurate as 1Hz.Also be provided with embedded type CPU on this baseband module 1 and programme to realize network interface communication protocol, carry out main frame and the terminal communication of signal jammer, control the communication between interfered with terminal and main frame.
Described frequency-variable module 2 makes the PLL chip produce local oscillation signal under the control of baseband module 1, simultaneously this local oscillation signal is carried out mixing, amplification, filtering, produces finally the interference radiofrequency signal that needs.
Described power amplifier module 3 amplifies the signal of frequency-variable module 2 outputs, can reach 40W, then through output interface, by RF cable, outputs to transmitting antenna.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection range of the present utility model.
Claims (5)
1. portable signal jammer, it is characterized in that: comprise power module (4), energy supply control module (5), baseband module (1), frequency-variable module (2) and power amplifier module (3), described power module (4) is connected 3 with baseband module (1) with power amplifier module respectively) be connected, be connected with energy supply control module (5) between described power module (4) and power amplifier module (3), be connected with frequency-variable module (2) between described baseband module (1) and power amplifier module (3).
2. a kind of portable signal jammer according to claim 1, is characterized in that: be provided with the DDS chip that produces low frequency signal on described baseband module (1).
3. a kind of portable signal jammer according to claim 1, is characterized in that: be provided with the PLL chip that produces local oscillation signal on described frequency-variable module (2).
4. a kind of portable signal jammer according to claim 1, it is characterized in that: described power amplifier module (3) is provided with output interface.
5. a kind of portable signal jammer according to claim 4, it is characterized in that: described output interface is the SMA radio frequency interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202244092U CN203301497U (en) | 2013-04-27 | 2013-04-27 | Portable signal jammer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202244092U CN203301497U (en) | 2013-04-27 | 2013-04-27 | Portable signal jammer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203301497U true CN203301497U (en) | 2013-11-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202244092U Expired - Fee Related CN203301497U (en) | 2013-04-27 | 2013-04-27 | Portable signal jammer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203301497U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015081550A1 (en) * | 2013-12-06 | 2015-06-11 | 华为终端有限公司 | Frequency conversion control method and apparatus, and communications device |
| CN105827357A (en) * | 2016-05-24 | 2016-08-03 | 广东电网有限责任公司信息中心 | Voice recording shielding device and voice recording shielding method |
| CN107395317A (en) * | 2017-09-08 | 2017-11-24 | 杭州捍鹰科技有限公司 | Electromagnetic interference rifle |
| CN108322701A (en) * | 2018-01-25 | 2018-07-24 | 上海理工大学 | Examination hall video monitoring and mobile phone signal shielding system |
-
2013
- 2013-04-27 CN CN2013202244092U patent/CN203301497U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015081550A1 (en) * | 2013-12-06 | 2015-06-11 | 华为终端有限公司 | Frequency conversion control method and apparatus, and communications device |
| CN105827357A (en) * | 2016-05-24 | 2016-08-03 | 广东电网有限责任公司信息中心 | Voice recording shielding device and voice recording shielding method |
| CN105827357B (en) * | 2016-05-24 | 2018-07-27 | 广东电网有限责任公司信息中心 | A kind of recording shielding device and screen method of recording |
| CN107395317A (en) * | 2017-09-08 | 2017-11-24 | 杭州捍鹰科技有限公司 | Electromagnetic interference rifle |
| CN107395317B (en) * | 2017-09-08 | 2023-08-08 | 杭州捍鹰科技有限公司 | Electromagnetic interference gun |
| CN108322701A (en) * | 2018-01-25 | 2018-07-24 | 上海理工大学 | Examination hall video monitoring and mobile phone signal shielding system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131120 Termination date: 20170427 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |