OpenShack CW Summit

Find your comfortable CW speed, then push it a little. Correct answers raise the WPM; mistakes bring it back down. The graph shows how your speed changes through the run.

Practise characters, groups, English words or callsigns. Use TYPE to enter what you copy, or KEY to send your answer. The screen keyer has a straight key and iambic A/B paddles.

Set the starting speed, run length and speed changes. Farnsworth spacing gives you more time between characters without slowing down the characters themselves. Compare your run with your personal-best trace, then check your peak WPM, accuracy and missed characters.

No rig or extra hardware needed. Practice works offline on iPhone and iPad. Settings and personal bests stay on your device. Online leaderboards are optional: post a score under your callsign if you want to compare results.

Want to use your own paddle? Connect it through an optional OpenShack Box with compatible BLE or Network Box firmware. The Box is sold separately. USB serial is not supported on iOS.

Sound uses media volume and plays in Silent Mode. Practice stops when you leave the app or lock the screen. Internet is needed for online scores, Network Box connections and help links.

English interface. No account, ads, subscription or in-app purchases.

By DL2CC / OpenShack.