UHF Transmitter or Cellular Phone Jammer (12′ range) up to 2GHZ

Circuit that can be used as a UHF transmitter(if the 555 IC is replaced with a mic and current limiting resistor from the mic to the + rail), or a cellular p…

8 thoughts to “UHF Transmitter or Cellular Phone Jammer (12′ range) up to 2GHZ”

  1. Very interesting! I? wonder how good the audio from this would be- And if it could be clear enough to be a simple low cost UHF wireless microphone for video use…

  2. According to the designer, the audio should be very good. Remove the 555 & anything connected to the 555 from the circuit, then connect one side of the mic to ground, and the other side to the capacitor leading to the base of the transistor, and you also add a 27? – 47k resistor from the mic+ to the power supply rail +.

  3. You can actually start talking to your teenagers and their friends again, if they have not lost the cultural ability to talk directly to other people. Go into a Starbucks and you can’t hear yourself think because all the lulu lemon peach bums? are on the very important phone call, and holding up the coffee line!

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