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How to make a signal jammer at home?

Irving August 2020

I want to make a jammer by myself, but I don't know how to start it. Can you tell me how to make it in detail?

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Jammer-Mart August 2020
5G telephone signal blocker

The jammer is a very sensitive signal blocking tool that cannot be used in many countries, but today when cellphones are everywhere, the use of jammers can help us reduce unnecessary trouble and improve performance. quality of life. This thing is not easy to buy on the internet, so you can make one yourself simply, very simple, but we must remind you that you must follow local laws and regulations, not violate others, the process of detailed production, you can Read the following page: How to Make Your Own Cell Phone Jammer.

Understand the working principles. This cell phone jammer works on the GSM800 frequency as most cell phones use it to operate. So the VCO chosen is a swinging oscillator that is very effective but difficult to design for the beginner without good RF test equipment.

As a noise source you can use a 45 MHz clock oscillator that drives a local oscillator port located on a mini-circuit mixer. There is also an impedance matching network to allow the local oscillator signal to pass through. It is used to equate impedances of the clock oscillator and the port of the mixer.

The RF input (which is this port on the mixer) connects to the first 800 MHz cellphone antenna, and the RF output is sent to the mini-loop amplifier. This amplifier increases the output power for 15-16dbm. The amplified signal is then sent to the second cellular antenna.