How to create your own cell phone jammer: understand, build, use (98 characters)

How to create your own cell phone jammer: understand, create and use a mobile network jammer (98 characters). This video explains how to make a cell phone jammer using a jammer circuit diagram. The video explains that the device operates at the GSM800 frequency and uses a sweeping oscillator as a noise source. The RF input connects to the first antenna of the cell phone and the RF output goes to the mini amplifier circuit, which increases the output power. The amplified signal is then sent to the second antenna of the cell phone. The mixer used operates up to 600 MHz and the RF amplifier is efficient but consumes additional power. To build the jammer, use an old aluminum box as a frame, old UHF connectors from Motorola cell phones as an input/output, and connect RF connectors to the circuit. Use a nine-volt battery and voltage regulator to power all components, and place the battery indoors and separate from other components. Screw the input and output antennas onto the UHF connectors, and your cell phone jammer is ready! However, this practice is illegal in many countries, including the United States, and can result in hefty fines and possible criminal prosecution.