Signal decoder

Every meter bar on this site spells something in Morse.

How the bars encode letters

Each column sits in one of three height bands. Judge by eye, or count the lit segments:

What you seeLit segmentsMeans
A tall column, well into the top third11 to 15dash —
A middling column, around a third up4 to 7dot •
A stub at the base1end of a letter

The bars bounce but never leave their band, so the reading holds while they move. A dot at its peak is four segments below a dash at its floor. Stubs hold still.

Read left to right. Two stubs in a row are a word space. The header spells my name. No other field spells the heading above it, so position gives nothing away.

Worked example

A word that appears nowhere on the site:

• • • | • • | — — • | — • | • — | • — • •

Split at the stubs: ... .. --. -. .- .-.., which is S, I, G, N, A, L.

Decode as you read

Tap a button for each column. Or type: full stop for a dot, hyphen for a dash, space for a break, backspace to undo.

What you have entered

Nothing read yet.

Reads as

—

Morse alphabet

Real Morse marks a letter break with silence. A gap would leave holes in the field, so a stub stands in.

Your first message

The front page hides a section until the right Morse is entered here. The word is RADIO. Send it with the buttons above and the way in appears below.

If every column reaches the top and nothing decodes, the radio has its bar control unlocked. Lock it again.

What the meters say

Now the ones with no answer given. Seven fields on the main page, in this order. Only the header says what you expect. The boxes give the letter count and nothing else. Found 0 of 7.

The list lives in memory only. Reload and it empties. See the ethics note.

The message that names nothing

One more field sits in the footer of every page, with no section beneath it to name. Three words:

Nothing above is required first. Read this one and the last page opens.

Back to the main page