A great QRP accessory! The AF-1 active CW filter really brings those distant signals right up out of the noise. The kit is easy to assemble. It consists of a simple filter circuit on a small daughter board. the circuit is inserted into the audio path before the audio amplifier. The AF-1 works with most popular transceiver kits.


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AF-1 Active CW filter KIT

  • Product Code: AF-1 Active CW filter KIT
  • Availability: In Stock
  • $24.00