Atv Downconverter Circuit

  
This RF converter converts amateur TV signals in the 420- to 450-MHz region to VHF channel 3 or 4, allowing reception of those signals on a standard TV receiver. RF amplifier Ql feeds mixer Ml, and Q3 acts as an IF amplifier.
Atv Downconverter Circuit - schematic

Q2 is an oscillator operating around 378 MHz and is tuneable over about a 30-MHz range.




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