Disclaimer

A sequence of dots and dashes is readable only when character boundaries are clear. The translator expects spaces between character groups and a slash between words. Without boundaries, a sequence can have more than one interpretation. A recognized group can also be the wrong group for the intended message if the writer missed a mark or inserted a space.

The chart covers the characters implemented by the tools, including common punctuation. Different conventions, older systems, accented letters, and operating signals can vary. Check the relevant standard or context if a sequence comes from a source that uses a different alphabet or convention. When you see an unsupported-character marker, look back at the input and decide whether an equivalent spelling or a different reference is appropriate.

The audio decoder looks for changes in tone energy and uses estimated timing to classify marks and gaps. Several causes can create uncertainty. A room can produce echo, a recording can be clipped, and background sounds can mask the silences between signals. Two senders on nearby frequencies can produce overlapping patterns. Manual keying can also create dot and dash lengths that fall between the expected values.

A decoded sentence can look plausible even when some letters or gaps are wrong. Compare the detected Morse with the signal preview, and listen to the recording where you can. Adjusting the tone target or sensitivity can help with a particular source. Very faint, irregular, or layered audio may remain difficult to interpret. Review any provisional output from a live stream once the last character has had time to finish.

Playback uses the sound capabilities of your current browser and device. Its volume depends on the tool settings and your speakers, headphones, or operating-system output. Keep the volume comfortable, especially before replaying a long signal. Browser audio may pause or behave differently when a tab is in the background or the device is under load.

Generated audio is intended for use in everyday projects and practice. Audio compression and audio players can introduce a small delay or extra silence, and visual exports can be resized by other applications. If a file will be used for an exercise or presentation, open the exported copy and check its sound, timing, or appearance in the intended environment. The light preview shows the signal on screen. Use the static timing view if blinking causes discomfort or if you prefer a steady reference.

A practice score measures a round in the selected settings. It depends on the character set, playback speed, answer mode, and how often you replay a prompt. A good result can show that you recognized those examples at that pace. Moving to an unfamiliar sender or a radio receiver adds other conditions that a browser exercise cannot measure.

The keyer can demonstrate straight-key and paddle timing. Operating-system keyboard repeat, touch latency, and background processing can affect the measured lengths of presses and the accuracy of a simulated paddle. For training that depends on the behavior of a particular physical key, use the applicable hardware or check the result with a qualified instructor.

A generated SOS pattern or a visual light sequence does not contact any emergency service. If you need urgent help, use the locally appropriate emergency channel and follow the guidance of the responsible authorities. If you plan to use generated signals on radio equipment, learn the rules, licensing requirements, and practices that apply to your location and equipment before transmitting.

External links provide context for standards and learning. Their owners decide what appears on those pages and may revise it over time. A link does not establish endorsement or authorization to use material from that source.

If you find an example that appears inconsistent, check it against the alphabet chart and its linked standard. For audio, try a short export from the generator at a known speed and pitch so you have a repeatable reference. If a reproducible mismatch remains, the Contact Us page explains how to report the input, settings, and result when a contact channel is available. See the Terms and Conditions for the terms that apply to use of the site.