Showing posts with label phone. Show all posts
Showing posts with label phone. Show all posts
Monday, November 17, 2014
GSM Cell Phone Jammer Circuit
A admirable diy gsm jammer or cellular adaptable buzz jammer schematic diagram for use alone in GSM1900 with abundance from 1930 MHz to 1990 MHz. The GSM1900 cellular corpuscle buzz arrangement is fabricated use of by USA, Canada and best of the nations in South America.
This cellular buzz jammer isnt applicative for use in Europe, Center East, nor Asia. The GSM jammer ambit could block adaptable adaptable buzz signals which operates on GSM1900 band, additionally articular as DCS.
This cellular buzz jammer isnt applicative for use in Europe, Center East, nor Asia. The GSM jammer ambit could block adaptable adaptable buzz signals which operates on GSM1900 band, additionally articular as DCS.
Wednesday, November 5, 2014
Cell Phone Controlled Audio Video Mute Switch
This cell-phone-controlled audio/ video mute switch is highly useful in automobiles. The circuit automatically disconnects power supply to the audio/video system whenever the mobile handset is lifted off the holder for making or receiving a call. You can use any readily available cell-phone holder with some mi-nor alterations or fabricate it yourself as shown in Fig. 1.
Fig. 1: Proposed cell-phone holder The circuit is wired around IC LM555 (IC1), the CMOS version of timer NE555, as shown in Fig. 2. IC1 is used as a medium current line driver with either an inverting or non-inverting output. It can sink (or source) current of up to 50 mA only, so take care while handling it. The audio/video system is connected to the circuit via normally opened (N/O) contacts of the relay.
Fig. 2: The circuit of the cell phone-controlled audio/video mute switch When the cell phone is in its holder, LDR1 does not receive any light from white LED1 and its resistance is high. As a result, the voltage at pin 2 of IC1 re-mains high to provide a low output at pin 3. The low output of IC1 activates relay RL1 and the audio/video system gets power supply via its N/O contacts. LED3 glows to indicate that the audio/video system is ‘on.’ When the handset is taken off the holder, light rays from LED1 fall on LDR1 and its resistance decreases.
As a result, the voltage at pin 2 of IC1 de-creases to provide a high output at its pin 3. The high output of IC1 deactivates relay RL1 and the audio/video system does not get power supply. LED2 glows to indicate that the audio/video system is ‘off.’ Preset VR1 is used to control the sensitivity of the circuit. Zener diode ZD1 is used for protecting white LED1 from the higher voltage. The circuit works off a 12V car battery. Switch S1 can be used to manually switch on/off the audio/video system.
Tuesday, August 5, 2014
Build a Cell Phone Jammer Schematic Diagram
This cell phone jammer operates at GSM800 frequency since most mobile phones use it to operate. So the selected VCO is a sweeping oscillator, which is very effective but may be hard to construct for the beginners without nice RF-testing equipment.
As a noise source you can use 45MHz clock oscillator which is driving Local Oscillator port located on a mini-circuit mixer. There is also an impedance matching network for Local Oscillator signal to pass through it. It is used to equate impedances of the clock oscillator and the port of the mixer.
RF input (which is this port of the mixer) connected to the first 800MHz cell phone antenna, and the RF output is sent to the mini-circuit amplifier. This amplifier increases the output power for 15-16dbm. The amplified signal then sent to the second cell phone antenna.
works
All cell phones which use GSM800 have their transmitted and received frequencies always separated by 45MHz. So when the mobile phone tries to call it is blocked by its own signal returning to it! Isn’t that cool? When the phone blabber annoys you – turn your jammer on and that wrongdoer will hear own voice in his or her cell phone.
Oh, by the way, you can also use this mobile signal jammer to block any cell-based tracking systems which use your GPS to track and record your car’s moves. And it is quite possible (though I didn’t actually tested it) to jam IEDs which detonated using cell phones.
The mixer used is designed to work up to 600MHz but in this case it works pretty well.
RF amplifier is doing its job perfectly yet (as it was mentioned in the Jammer Store blog post) draws additional power.Old aluminium box was used as a frame for the jammer and old UHF connectors from Motorola cell phone as input/output.You need to attach RF connectors to the circuit. Nine volt battery and voltage regulator were used to supply all components. The battery was placed inside and separated by the foamed plastic from the other components.The power on/off switch is placed on the top. The input and output antennas (also from old Motorola mobile phone) are screwed onto UHF connectors.Your cell phone jammer is ready. Enjoy!
Thursday, January 9, 2014
It is the place where cell phone jammers is necessary to be used
It is the place where cell phone jammers is necessary to be used
SMS one is not more than 70 words, sent from the platform to the user to receive the fastest just ten seconds; MMS a maximum capacity of about 40K or so, they can be quantified 10 (version), a total of 3000 words plus four pictures. During the Olympics, a huge crowd working life limit, in the absence or the move, this time, the convenience of the mobile newspaper will get the highlights. The mobile newspaper reported almost the only way they always watch the game. Even those people in front of the TV or computer all day, accustomed to the phone reported as the main source of information. After all, they care so deeply about the time of the live matches through mobile newspaper. It will supply the power for cell phone jammers itself.
You can use the minimum cost of reading to grasp all the games dynamic. Some even reported as a daily spectator guide. As of 24 on August 12, more than 10 million through China Mobiles "Olympics phone" concerned about the Olympic Games process. According to the survey interview, informed students on the use of mobile phones reported during the Olympic Games through the Olympic Mobile News Olympic Alerts feel convenient fashion. Some students said that each month as long as put into the cost of a few newspapers will be able to browse the entire month of Olympic information reports, cost-effective and innovative. Advantages: "Olympics phone" to take the combination of MMS and SMS text messages to ensure the timeliness, MMS meet the depth reading. It means the open wire and concealed wire laid on the wall where the installation of cell phone jammers will be carried out.
Early as the MMS one a day, one day a text message. July 1, 2008, increased to one day two MMS, SMS day three. Distinct content characteristics and strong technical support, Olympic mobile newspaper rapid expansion. To the Beijing Olympic Games start the first week, ordered the Olympic mobile newspaper users exceeded 10 million. The phone reportedly has a high arrival rate and circulation rate. This Olympic Games, millions of users are informed of Liu Xiang out of the race through the Olympic mobile phone SMS messages. Mobile terminal message, can be understood in a way to remind mandatory reading. Users also need to periodically delete old short color information in the phone to save memory space. It is the strong electricity around antenna of cell phone jammers .This removal process itself can also increase the likelihood of the second reading.
Here continue read..
SMS one is not more than 70 words, sent from the platform to the user to receive the fastest just ten seconds; MMS a maximum capacity of about 40K or so, they can be quantified 10 (version), a total of 3000 words plus four pictures. During the Olympics, a huge crowd working life limit, in the absence or the move, this time, the convenience of the mobile newspaper will get the highlights. The mobile newspaper reported almost the only way they always watch the game. Even those people in front of the TV or computer all day, accustomed to the phone reported as the main source of information. After all, they care so deeply about the time of the live matches through mobile newspaper. It will supply the power for cell phone jammers itself.
You can use the minimum cost of reading to grasp all the games dynamic. Some even reported as a daily spectator guide. As of 24 on August 12, more than 10 million through China Mobiles "Olympics phone" concerned about the Olympic Games process. According to the survey interview, informed students on the use of mobile phones reported during the Olympic Games through the Olympic Mobile News Olympic Alerts feel convenient fashion. Some students said that each month as long as put into the cost of a few newspapers will be able to browse the entire month of Olympic information reports, cost-effective and innovative. Advantages: "Olympics phone" to take the combination of MMS and SMS text messages to ensure the timeliness, MMS meet the depth reading. It means the open wire and concealed wire laid on the wall where the installation of cell phone jammers will be carried out.
Early as the MMS one a day, one day a text message. July 1, 2008, increased to one day two MMS, SMS day three. Distinct content characteristics and strong technical support, Olympic mobile newspaper rapid expansion. To the Beijing Olympic Games start the first week, ordered the Olympic mobile newspaper users exceeded 10 million. The phone reportedly has a high arrival rate and circulation rate. This Olympic Games, millions of users are informed of Liu Xiang out of the race through the Olympic mobile phone SMS messages. Mobile terminal message, can be understood in a way to remind mandatory reading. Users also need to periodically delete old short color information in the phone to save memory space. It is the strong electricity around antenna of cell phone jammers .This removal process itself can also increase the likelihood of the second reading.
Wednesday, December 25, 2013
The component of mobile phone jammer is separate
The component of mobile phone jammer is separate.
In Nokias share of nearly 40% behind, hidden in its mobile phone sales channels infighting. Of the Nokia mobile phone sales channels, the channel model of the mobile phone industry is broadly divided into the national agency system, the provincial agency, the manufacturers supply model, first proposed by Nokia provincial direct control of distribution of Nokia mobile phone sales channels mode. Nokia mobile agents Postel and Telling, and last year the introduction of Synnex Technology International. We can find, continuously reported in the first half of this year, Nokia channels to dissatisfaction with the low gross margin and resentment.
The omnidirectional antenna of mobile phone jammer can be provided at different price.
Nanjing Panda Mobile Communications Equipment Co., Ltd. (abbreviation PMC). This is a mobile phone sales, R & D, production, sales and technical service in one enterprise. The company has set up 20 branches in Jiangsu, Sichuan, northeast, Guangdong, Shanghai, Beijing, formed based in Jiangsu, echoing the north and south, radiation thing, the market, sales, business-linked target sales network to expand its market share and actively to expand overseas. According to the Nanjing Panda 2003, its total mobile phone sales in the first half of 2003 of 1.306 billion yuan, ranked fifth in the domestic mobile phone. However, according to latest data released in early April 2004. This mobile phone jammer system has the anti-damage protection function.
Chinese mobile phone an annual capacity of 2004 exceeded 170 million mark, while the total market capacity is only 69 million units, the middle will have to deduction of no small proportion of the mobile phone market (in Guangzhou and other places, and second, the proportion of a conservative estimate more than 20%). According to the view of modern marketing, product characteristics is a key factor in the impact of marketing decisions. So a study of the mobile marketing channel to start from the phones features and marketing features. Phone as a convenient communication tool, has its own characteristics. First of all, the phones main function is the most basic function of communication. With the development of society, an increasingly wide range of peoples activities, the concept of global village has long been popular. It can prevent the intentional and unintentional damage to mobile phone jammer .
Here continue read..
In Nokias share of nearly 40% behind, hidden in its mobile phone sales channels infighting. Of the Nokia mobile phone sales channels, the channel model of the mobile phone industry is broadly divided into the national agency system, the provincial agency, the manufacturers supply model, first proposed by Nokia provincial direct control of distribution of Nokia mobile phone sales channels mode. Nokia mobile agents Postel and Telling, and last year the introduction of Synnex Technology International. We can find, continuously reported in the first half of this year, Nokia channels to dissatisfaction with the low gross margin and resentment.
The omnidirectional antenna of mobile phone jammer can be provided at different price.
Nanjing Panda Mobile Communications Equipment Co., Ltd. (abbreviation PMC). This is a mobile phone sales, R & D, production, sales and technical service in one enterprise. The company has set up 20 branches in Jiangsu, Sichuan, northeast, Guangdong, Shanghai, Beijing, formed based in Jiangsu, echoing the north and south, radiation thing, the market, sales, business-linked target sales network to expand its market share and actively to expand overseas. According to the Nanjing Panda 2003, its total mobile phone sales in the first half of 2003 of 1.306 billion yuan, ranked fifth in the domestic mobile phone. However, according to latest data released in early April 2004. This mobile phone jammer system has the anti-damage protection function.
Chinese mobile phone an annual capacity of 2004 exceeded 170 million mark, while the total market capacity is only 69 million units, the middle will have to deduction of no small proportion of the mobile phone market (in Guangzhou and other places, and second, the proportion of a conservative estimate more than 20%). According to the view of modern marketing, product characteristics is a key factor in the impact of marketing decisions. So a study of the mobile marketing channel to start from the phones features and marketing features. Phone as a convenient communication tool, has its own characteristics. First of all, the phones main function is the most basic function of communication. With the development of society, an increasingly wide range of peoples activities, the concept of global village has long been popular. It can prevent the intentional and unintentional damage to mobile phone jammer .
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