RST Decoder vs Morse Trainer Pro

This is an App that decodes Morse code input from the microphone. It is a Morse practice App that you can use to check if you are keying the correct code. Signals with good S/N can be decoded correctly, but signals with bad S/N cannot be decoded correctly. Also, the performance will be degraded for extremely slow or fast signals. Usually about 5 to 10 characters are required for speed synchronization of Morse Code. Adjust the input signal so that the peak value changes from level 6 to level 7. Make fine adjustments to each parameter according to the reception status. [Additional Functions] -In addition to the decoder using BPF, a new decoder using FFT has been added so that it can be switched according to the usage. -AFD (Auto Frequency Detector) function has been added to the decoder using BPF, and BPF can be set automatically by pressing the AFD button. -The decoder using FFT automatically follows the strongest signal in the band by AFD (Auto Frequency Detector) and AGC (Auto Gain Control). You can also hold the AFD / AGC parameters by pressing the Lock button. * There will be a time lag of about 1 to 2 seconds for AFD tracking. [Control parameters] 1. Audio Input Level 2.BPF ON/OFF 3.BPF of Center Frequency 4.BPF of Band Width 5.CW Speed Control ON/OFF 6.CW Speed Control Low, Mid1, Mid2 or High 7.Delete All Decoded Text 8.Realtime CW Signal Display 9.Input signal recording / playback function *Japanese/KANA text is not supported. [Note] Since the signal after BPF is output to the audio output, it can also be used as an AF-CW filter. [URL of this App working example video] https://youtu.be/Pwp7W4m-m34

Morse Trainer Pro is continuously improved based on user feedback. If you encounter an issue or have suggestions for new features, you can reach us anytime via the Support URL. Morse Trainer Pro is a modern, data-driven Morse code training system designed for both beginners and advanced operators. Built on proven learning principles and real-world CW workflows, it helps you build speed, accuracy, and confidence through structured, configurable, and adaptive practice sessions. Whether you are just starting your CW journey or preparing for high-speed copying and contest performance, Morse Trainer Pro provides the tools, analytics, and training modes needed to progress effectively. Key Features • Adaptive CW Training Engine Automatically adjusts tone speed, character speed, spacing, and difficulty based on your performance. • Customizable Practice Sessions Create your own playlists, select specific characters, define speed ranges, set Farnsworth spacing, and fine-tune every detail of your training. • Realistic CW Audio Generation High-quality sidetone and precise timing provide an authentic experience aligned with real-world Morse operation. • Word, Call-sign & Random Group Training Choose from character sets, curated word lists, amateur radio call-sign patterns, or fully random groups for targeted skill building. • Performance Tracking & Statistics Review detailed history, accuracy, character timing, session duration, and improvement trends over time. • Clean, Focused Interface Designed for distraction-free training on iPhone and iPad with dark and light modes. • Works Offline Train anywhere — no connection required. Morse Trainer Pro is built in collaboration with active CW operators and designed for long-term progression, whether your goals are on-air communication, contesting, SOTA/POTA operations, or simply mastering a timeless skill. Your CW journey starts here. Train smarter. Copy faster. Learn Morse with confidence. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/