Morse Decoder AI 4+

Neural network technology

Yuriy Kvasha

Designed for iPad

    • 1.0 • 1 Rating
    • $2.99



The application listens to the audio stream and decodes Morse code into text. AI network is trained to decode signals ranging 10-40 wpm with a frequency of 200-900Hz.

The Morse Decoder AI is an application for decoding Morse code signals using artificial intelligence. The application is designed for use by amateur radio enthusiasts for educational purposes. The Morse decoder listens to the audio stream through the microphone or line input and, upon detecting Morse code signals, decodes them into text.

The neural network of the application is trained to decode signals with a speed ranging from 10 to 40 words per minute within a frequency range of 200 Hz to 900 Hz.

The application supports two modes of operation: direct (default) and tone filtering mode.

In direct mode, the neural network will attempt to decipher Morse code signals in the audio range of 250 Hz to 900 Hz. This mode is suitable for confident reception of Morse code at levels of 7db-9db on the S-meter.

The tone filtering mode is ideal for decoding Morse code from noisy weak signals in the presence of radio interference. The audio input signal is first filtered using band-pass filters before being passed to the neural network for decoding. This mode allows for the decoding of faint signals, but it requires the accurate specification of the signal's tone frequency. Each radio amateur selects their own CW tone frequency in the transceiver settings, and it is important to tune precisely to the carrier frequency using the ZIN/SPOT button in YAESU transceivers, or the AUTOTUNE button in ICOM transceivers. There are 3 band-pass filter options available: 25Hz, 50Hz, 150Hz. If you can accurately determine the CW signal tone frequency, using the 25Hz filter, you can decode very faint Morse code signals.

The application offers two neural network options: A and B, which can be easily switched in the interface. Network A is recommended for use with stable signal transmission with a constant duration of dots and dashes, while network B is recommended when using a straight key, where the duration of dots and dashes may vary. You have the ability to switch between these networks in real time and observe how each network hears and decodes Morse code.

It is important to monitor the level of the incoming audio signal, for which the application provides a sound level indicator. Ensure that the signal is not too quiet or too loud. It is recommended to maintain the signal around -7db, which is sufficient for decoding. Keep in mind that higher audio frequencies are quieter than lower frequencies.

Additionally, the application provides various color themes, allowing radio enthusiasts to customize the appearance of the application for comfortable use.

What’s New

Version 1.1

- Added Band Pass filter for decoding weak signals
- Improved neural networks type A and B

Ratings and Reviews

1.0 out of 5
1 Rating

1 Rating

Déjà a ,

Had high hopes.

Tried it on W1AW 20 wok perfect code. I could copy I’m my head easily. Despite adjusting bandpass and center frequency, it got less than 10% chars correct.

Developer Response ,

Write to support, 10% chars is result of incorrect app settings

App Privacy

The developer, Yuriy Kvasha, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • User Content
  • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    Up to six family members can use this app with Family Sharing enabled.

More By This Developer

Star Map Tracker: Star Walk
Midi DJ remote lite
Satellite Transponders
SatFinder 3D Dish Pointer
SatFinder Pro Satellite Finder
Alien's Return

You Might Also Like

iWSPR TX - QRP Hamradio
Shortwave Guide
Optec Remote