Click green Play/Pause button & wait ...


73 de Graham, G4JBD
With thanks to Fabian, DJ5CW for jscwlib






Key Benefits and Features:

Realistic Simulation:
The G4JBD Morse player app includes seven simulated band conditions (from quiet to "hard" contest noise) and allows independent adjustment of Morse tone frequency, character speed versus overall text speed, helping you adapt to varying HF operating environments.

Flexible Practice Material:
You can select from 5 different weekly RSGB news articles (with historical archives), random character sets (letters, numbers, punctuation), 1000 random common words, (which I jumble each week) and imaginary call signs to target specific skill gaps. There is even a simulated 2-way QSO option for you to listen to, with random information being exchanged.

User-Friendly Design:
As a browser-based player, the G4JBD Morse app requires no installation; settings are embedded in the URL, allowing you to save and share specific practice sessions or download MP3 files for offline study. An on-screen 'highlighter' shows you which letter is currently being played.

Progressive Learning:
The interface supports a wide range of skill levels, from absolute beginners learning basic letters and numbers to experienced operators refining their ability to copy signals through heavy QRM (interference), QRN (natural noise) or to increase your copy speed.

It's affordable:
Well, it is completely free and always will be! I don't event ask you to provide any personal details - just feel free to use it whenever you want.

It's the right tool for the job:
The most effective method for learning to understand Morse code by ear is head copy, where you recognize the rhythmic Morse code sound of a character directly as a letter without visualizing dots and dashes or counting signal units.

To achieve this, the G4JBD app lets you hear individual characters at a higher speed (e.g., 20 words per minute) with large spacing between characters from the very beginning. You choose how much spacing you need. This helps your brain to learn the unique "sound" of each letter rather than its individual dits and dahs.

You can adjust the Farnsworth speed to get wider spacing between characters.

This slows down the overall text, to help you to distinguish individual letter sounds without the overwhelming your brain with a high number of words per minute. This is also known as the Koch method.

For example, when you first begin to learn Morse, try a letter speed of 12 wpm, and a Farnsworth speed of 2 wpm or slower. Experiment to see what works best for you - aim to challenge yourself!

You can even set fractional speeds, such as 0.4 WPM, 2.7 WPM etc, giving you complete control over your progression at the very beginning of your journey into the wonderful world of Morse code.

Having said that, you can also use the G4JBD Morse player to test your absolute limits for world-speed-record attempts, or for testing computer decoding at super-human speeds.

Practical steps to master the Morse Code skill include:

Listen Daily:
Dedicate at least 30 minutes a day to listening to your favourite G4JBD Morse code practice content to build familiarity with the rhythm.

Focus on Rhythm:
Train your ear to hear the entire character as a single "word" sound rather than a sequence of individual beeps.

Practice Real Content:
Progress from random character groups to copying real words, GB2RS news scripts, and simulated QSOs (radio conversations) to improve speed and comprehension.

Get ready for real Morse Code converstions on the air:
Introduce background noise to simulate the sound of real radio transmissions. The G4JBD app has several levels and types of background noise, to suit all abilities.

Have fun and please let me know how you get on :-)

73, Graham G4JBD