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Morse Signal is a Morse code learning app suitable for users ranging from beginners to those practicing real-world transmission.

You can learn 26 English letters, 24 basic Korean characters, 10 numbers, and 8 major symbols. It provides step-by-step practice for character recognition and keying. You can convert text into Morse code or vice versa, and the converted Morse code can be played back as audio or copied.

In the sentence practice section, you can utilize 300 selections of Korean and English words and sentences, as well as military and emergency situation sentences. You can select a set, difficulty level, topic, and amount of practice to review the sentence, Morse code, and meaning together for repetitive learning.

The transmission function is based on International Morse Timing, and you can use sound, rear flash, and vibration individually or simultaneously. It supports WPM 5–30 and sidetone frequencies of 500–800 Hz, allowing you to customize settings to suit your learning level. It also provides custom functions that allow users to directly input Morse code and instantly convert, play, and save it. Users can also easily check the history of Morse code, WPM, international timing, and the principles of Korean Morse code.