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QCX Challenge

The QCX challenge is our monthly operating event to encourage operators to get on the air with their QCX (or other) radios and enjoy the pleasures and benefits of CW. It started in early 2019 with a discussion on the QRP-labs reflector when Harv K2PI asked “why don’t we have a QCX QSO party?”

Good idea! So this is it. Its designed to be a fun and friendly opportunity to get on the air with your QCX or QCX-mini or QCX+ (or QSX as soon as it is released) and explore its potential. All were designed from the outset to be superb CW radios and they do not disappoint.

CW is a wonderful mode and it is truly amazing what can be achieved with relatively low power even under poor propagation conditions. Transatlantic and intercontinental QSOs are perfectly possible with these amazing little radios using even relatively modest antennas like dipoles or end-fed half-waves.

Although QRP is nice, the QCX Challenge is not limited to 5W, you can also use the QRP Labs 50W amplifier, or any other (homebrew) amplifier in the 50W range (+/- 3dB which would mean 25-100W). 

The QCX Challenge is for everyone, experienced contest operator or cw beginner. And you don’t need a QCX to take part:

The three one-hour sessions are timed so that most people in the world can join in and each is scored separately.

When: Last Monday of the month 1300z to 1400z, 1900z to 2000z, 0300z to 0400z (note, this is the LAST session, it is technically Tuesday 0300-0400Z, but will be Monday evening local time in US).

Bands: 20m 40m 80m

Frequencies: when operating QRP, suggested frequencies are 1 to 3 kHz below the QRP calling frequencies (14.060, 7.030, 3.560 respectively). When operating QRO, suggested frequencies are 3 to 5 kHz below those frequencies. If your region has other QRP calling frequencies, adjust accordingly.
Please spread out and use spotting aids (see below) to see where people are.
Of course, QSOs anywhere on the band can be counted.

Mode: CW

Focus: Worldwide



Power: to keep things fun, it is advised not to use more than 100W

Exchange: true RST, name, rig, power (optional info: QTH, antenna, WX, …)
If signals are good enough; please specify your model of QCX:
QCX Plus or QCX Mini (or QSX when it’s available).

Scoring: *** NEW for 2021 ***

Note: scoring is for fun, this is a party, not intended to be a serious contest!

Scores: please submit your score to, and give some detail of your station, power, antenna, etc. in the comment field. 

Logs: Not required.

Remember, the important thing is to be active, explore the limits of your QCX and have fun on the bands.

The QCX QSO Party manager is Luc ON7DQ.