Amateur Radio Homebrew - QRP Homebrew

QRP Homebrew

QRPers are ham radio enthusiasts known to use a power output of five watts, sometimes operating with as little as 100 milliwatts or even less. Extremely low power -- 1 watt and below -- is often referred to by hobbyists as QRP. Commercial transceivers designed to operate at or near QRP power levels have been available for many years, but some QRPers prefer to design and build their own equipment, either from kits or from scratch. Many build miniature transmitters and transceivers into Altoids boxes and operate using battery power. Popular QRP kit models include the Elecraft K2, KX1, and now KX3 and those produced by NorCal, Small Wonder Labs, and others. QRP activity can often be heard on 7.030 MHz.