RST Decoder vs Sky107

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

Sky107 is the most focused study tool for pilots preparing for the FAA Part 107 Remote Pilot Knowledge Test. Every feature is built around the official FAA curriculum so you study exactly what the exam covers — nothing more, nothing less. **Structured 13-Chapter Course** Work through all Part 107 topics in order: airspace classification, weather, loading and performance, emergency procedures, crew resource management, and more. Each chapter combines clear explanations with a graded quiz so you can confirm your understanding before moving on. **Flashcard Deck with Mastery Tracking** Swipe right on cards you know, left on cards you're still learning. Sky107 remembers your progress and lets you filter by chapter or category so you can focus your review sessions on the topics that need the most work. **60-Question Practice Exam** Simulate the real FAA test with a timed 60-question exam that mirrors the official topic distribution. Detailed results show your score by category, helping you identify exactly where to study more. **FAA Reference Links** Quick access to the official FAA documents you need: the Part 107 regulation text, the Aeronautical Information Manual, airspace maps, and the official study guide — all in one place. **What you get:** • 13 structured lessons covering the complete FAA Part 107 syllabus • Swipeable flashcard deck with per-card mastery tracking • 60-question timed practice exam with category-level results • Curated FAA reference links (AIM, Part 107 rule text, study guide) • Progress tracking across all chapters and study sessions • No account required — everything works offline Whether you're preparing for your first commercial drone certification or refreshing your knowledge for a recurrent test, Sky107 keeps you focused on the material that matters.