Morse timing and the Koch method

Morse is a rhythm, not a code you decode. That distinction is the whole difference between learning it in weeks and giving up after months.

The timing rules

Everything is built from one unit — the dit (dot).

That is the entire specification.

Why PARIS defines speed

The word PARIS, including its trailing word space, is exactly 50 units long. It was chosen as the standard "average word", so:

speed in WPM = how many times you can send PARIS in one minute

Which gives the formula you need:

dit length (seconds) = 1.2 ÷ WPM

At 5 WPM, a dit is 0.24 seconds. At 20 WPM, 0.06 seconds.

The mistake almost everyone makes

The instinctive way to learn is to slow everything down — send characters at 5 WPM and count the dits. It feels like it is working.

It is a trap. You build a mental lookup table: hear dot-dash, think "that's one dot then one dash", recall "A". That process takes time you will not have at 12 WPM, and you hit a hard wall around 10 WPM that is genuinely painful to break through.

Farnsworth timing

The fix is to never slow the characters down. Send each character at a fast speed — 18 or 20 WPM — so its rhythm is learned as a single sound shape. Then stretch the gaps between characters and words so the overall rate is slow enough to keep up.

That is Farnsworth timing. The character speed and the effective speed are two separate numbers.

Learn "dah-di-dah" as one sound that means K. Never as "dash, dot, dash".

As you improve, you reduce the extra spacing rather than speeding up the characters. The character sounds you learned on day one stay valid all the way to 25 WPM.

The Koch method

Ludwig Koch's insight was the other half of the solution: start at full speed with just two characters.

Begin with K and M — chosen because they sound maximally different. Practise until you copy them at around 90% accuracy. Then add R. Then S. Each new character joins at full speed, and the newly added ones appear more often in the practice text so you focus where you are weak.

The standard order is:

K M R S U A P T L O W I . N J E F 0 Y ,
V G 5 / Q 9 Z H 3 8 B ? 4 2 7 C 1 D 6 X

What this means in practice

Practise in short sessions — 10 to 15 minutes daily beats an hour on Sunday. Copy onto paper or a keyboard without looking at a chart. Accept that you will miss characters; the brain learns this the way it learns speech, by exposure.

The trainer on this site implements both methods: Koch character introduction, and Farnsworth spacing with character speed and effective speed as independent controls.