The Morse Code Museum
From semaphore towers to satellite beacons — an interactive journey through the systems humans built to talk across distance, using light, sound, and electricity.
J-38 Morse Key
Press Space or tap the key. Short = dot, long = dash. The spark at the contact fires with the tone; the paper tape above scrolls your dots and dashes in real time.
Threshold: under 200 ms is a dot; over 200 ms is a dash. WPM is calibrated to the PARIS standard from the 25th percentile of recent elements.
The Collection
Historic devices, systems, and milestones of distance communication. Filter by category to explore different traditions.
A Brief History of Distance Communication
Scroll through the milestones that connected the world — from hilltop semaphores to satellite signals.
Hands-on Instruments
Convert text to Morse, study the reference chart by rhythm, or step a message through semaphore, Aldis lamp, heliograph, or ICS flag signaling.