The QCX from QRP Labs is a really cool radio. The radio itself only costs $49. This is a low power (5W), single-band radio for CW (Morse Code) which includes a Beacon mode which supports automatic CW or WSPR operation. I’m using this kit for the 20m band but the kit is available for the 80, 60, 40, 30, 20 or 17m bands. This is a kit of parts that you assemble and solder yourself.
The video below is a quick followup to the modification video above which is now officially a modification on the QRP Labs website. I also have a quick audio demonstration of the filter switch.
I like this radio is because I’m able to have a permanent beacon on the Weak Signal Propagation Reporter (WSPR) for real cheap and I don’t have to tie up my my other, more expensive, voice transceiver. The idea is to be an active beacon reporter for the WSPR radio community which helps other operators understand how their antenna configurations propagate and all the data I report on is also used in scientific experiments and for studying ionospheric conditions. To get this transceiver working the way I want, I had to make a few adjustments. Below are my project notes related to the QCX project.