What is QRP?

Well QRP is Low Power Transmitter – ham radio/transceivers; 5 watts or less output but also means in Amateur radio international Q-code – Decrease transmitter power.

Radio differentiate by operations on frequency bands

There are few of them:

But also plenty of DIY or in Kit version:

  • Youkits cw-40 (made by YouKits)
  • Forty-9er kit
  •  QCX: 5W CW transceiver (made by QRP Labs)
  • QRPGuys 40/30/20m DSB Digital Transceiver II Kit (made by QRPGuys)