VHF Noise Generator
![vhf noise.jpg](/proxy/?url=https://content.instructables.com/FMV/2MTQ/KWAOKL8Y/FMV2MTQKWAOKL8Y.jpg&filename=vhf noise.jpg)
I introduce a simple noise generator that can be used as a VHF jammer.
Schematic
![Noise generator.jpg](/proxy/?url=https://content.instructables.com/FPY/MRZX/KWAOKKT5/FPYMRZXKWAOKKT5.jpg&filename=Noise generator.jpg)
I found this noise generator circuit:
I decided to turn this into a VHF jammer.
I added another stage to the circuit with a power transistor. I found only one type of VHF power transistors in a store near my home, it is the KT606A. According to the datasheet, it's a 350 MHz 2.5W transistor, but with heatsink, the power can be increased a little.
I think the circuit will work with more powerful VHF transistors.
The circuit work well in VHF band, (at least 0.5 meter antenna) but emits very low medium wave noise. I did not test the noise level above FM band.
Video of Operation
![Vhf noise generator](/proxy/?url=https://content.instructables.com/F9W/WMKQ/KWAOKKT7/F9WWMKQKWAOKKT7.jpg&filename=Vhf noise generator)