About this app
Telegraphist — Decode the Callsign Test your hearing, attention, and thinking speed by decoding real radio callsigns in Morse code. In *Telegraphist*, you listen to the air under various reception conditions and must decode the callsign by ear, entering it accurately and without mistakes. The more difficult the signal, the higher your rating. **Realistic radio air** Each signal is unique: * different transmission speeds * adjustable tone * noise and interference * QSB effect (signal fading) Conditions constantly change — just like in a real radio air. **Game modes:** *** Training *** Adjust speed, tone, noise, and other parameters to suit yourself and refine your skills at a comfortable pace. *** Exam *** Pass the test and find out your level: * Beginner * Amateur * Advanced * Experienced * Expert * Master Each level brings new challenges and increasing difficulty. **Rewards and progress** Successfully pass exams and receive badge-medals as rewards. Track your growth and prove that you can read the air without errors. **Who this game is for** * for radio amateurs who are away from their transceivers but don’t want to lose their Morse code skills * for those who enjoy audio challenges * for fans of logic and attentiveness * for those who want to test themselves in an unusual listening-based game **Ready to receive the signal?** Put on your headphones, tune the receiver, and show who the real **Telegraphist** is.
Audience growth
Ratings growth
Baseline captured. Growth appears after the crawler observes a changed rating count.
Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.
Price tracking
Price intelligence
First snapshot captured. The trend line starts after the next crawler price observation.
- First observed Aug 17, 2026 · 8:18 PM Free