439.25Mhz Atv Downconverter Circuit

  
Most ATV (Amateur Television) transmitters transmit a DSB signal and commercial television stations use a VSB (Vestigial Sideband) signal. This fact is made use of in this converter to use the lower sideband. This results in less interference from repeaters that occupy the 440- to 445-MHz portion of the band.
439.25Mhz Atv Downconverter Circuit - schematic

However, this approach might suffer from VHF image responses from channel 29, if that channel is active in your area.




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