Cell Phone Jammer Circuit

A beautiful diy gsm jammer or mobile cell phone jammer schematic diagram for use only in GSM1900 with frequency from 1930 MHz to 1990 MHz. The GSM1900 mobile phone network is used by USA, Canada and most of the countries in South America.

This cell phone jammer is not applicable for use in Europe, Middle East, nor Asia.
The GSM jammer circuit could block mobile phone signals which works on GSM1900 band, also called DCS. For more cell phone jammers check the related posts.

Mobile cellphone jammer circuit diagram

cell phone jammer schematic



    this is a woderfull circuit i need full details about this . i want compleat details of this &i want this circuit b oprated in india plz send about it i dont no at wat gsm using here

  • Bongo

    It’s true! I tried listening to someone’s phone call and the FCC came around with a their own SWAT team and killed me. But when I got to heaven God told me how much he hates cellulars and sent me back to share jammers with the world. Who am I to say no to God?

  • Aslan

    Is this equipment meant to block a users cellphone signal when someone is trying to introduce a connection to listen onto the device being used. If so does it block major companys like verizon, at&t, t-mobile and etc. Or is it meant to block singnals coming from certain models of phone? Is so what models? i need more information about it.

    • Bcaseb

      @Aslan, no, GSM is a standard of the cell phone industry. If I’m reading all of this info correctly, it blocks all phones that use the GSM standard.

      Person A does not use a GSM-type phone and his carrier does not use it, they use some older, archaic type of communication.

      Person B uses a GSM-enabled phone.
      most people fall under this category.

      Person C has a high tech smart phone, using multiple systems to communicate.

      Use this jammer and people on the 1930-1990 MHz range, or GSM, (not 100$ on this) have static/noise played on their ENCRYPTED signal frequency. This noise combines with the actual signal to make a jumbled up signal. The phone cannot decrypt the signal properly if there are bits and bytes that dont fit, aka a corrupted signal. Since the phone can’t decrypt this, it tells the user it has no signal; effectively jamming the service.

      p.s. the GSM standard covers a few different frequency ranges, and the one most popular in the U.S. is the 1900-1990 MHz band. This jammer works best in the U.S. as it targets this range of frequencies.

      I hope this helps. =D

  • SectechBiz

    If some one need cell phone jammers then contact us , we provide the such type of security solution in worldwide

    • frank

      i am intrested in purchasing a few how much how big?

    • pradeepak

      this is pradeepak prefinal year student of ECE.i want to design cellphone jammer which can use in india as miniproject.please help it is urgent.please send me id

    • patrick

      hello friend. i have info how to construct and design. this is my project in my university. here is my mail address
      contact me by email as soon as possible

  • Adebayo

    pls,am ask to construct and design freq.wireless network multi-jammer.pls i need suitable write up on it and how to go about the design.thanks.

    • farhan

      hello friend. i have info how to construct and design. this is my project in my university. here is my mail address
      contact me by email as soon as possible

  • wirelessphonejammer

    almost seven years after the first report about cell phone jammer,now cell phone jammer become commen in lots of countries and it is known by more and more can find this kind of item by google just type cell phone jammer,you will find the manufacture just like ,the price become lower and lower.
    Though in some countries,the product is illegal,its existance prove it is needed by some persons

  • kamran

    its a very amazing ckt….if any body has scematic of mobil tacker and capture of calls ckt then plz help me .. thanks

  • perplexed6

    I needed a schematic for dual band GSM 900/1800… what are the changes i might have to make in this?

  • sandesh

    i need description of circuit diagram,….
    i also want to know that, will this circuit jam the signal in inda….

    • nauman

      I am also working on a cell phone jammer.If you have succeeded in all this work;please share it with me.I will be great ful…
      my e mail add is nomino_747 @

  • ayaz

    i am locking GSM FWT circuit diagram that can suport PABX,if you can help so please reply

    • vLaD

      Hi ayaz, i need jammers circuit diagram. can you help me?
      sorry for my english. Here in my country , use GSM in the four bands. I dont remember the freq.
      thks and regards.


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