Morse Code Decoder Chart

156 points · 14 comments · view on lemmy.world

14 Comments

MicrowavedTea@infosec.pub · 26 pts · 2y

Alternative representation, more like a binary tree image

maaneeack@lemmy.world · 23 pts · 2y (1 reply)

D..r.i..n.k mo...r.e o...v..a l.....t..I.....n.e

Drink more Ovaltine?!

motor_spirit@lemmy.world · 5 pts · 2y
[ removed ]
cdf12345@lemm.ee · 18 pts · 2y (1 reply)

This is cool to look at but its worthless to use to learn Morse code. Actually learning requires recognizing audio patterns not quickly translating characters into words from a flowchart.

XTL@sopuli.xyz · 2 pts · 2y

I think the charts were meant for an inexperienced or almost untrained operator (civilian in wartime e.g.) that could write down what they heard, then use a chart to decode it and maybe even send a reply.

No sources, though.

FuryMaker@lemmy.world · 7 pts · 2y (4 replies)

How does one distinguish between "Tea" and "X"?

Both are dash dot dot dash.

Are there gaps between words or letters?

avguser@lemmy.world · 18 pts · 2y (1 reply)

International Morse code is composed of five elements:

  • short mark, dot or dit: "dit duration" is one time unit long
  • long mark, dash or dah: three time units long
  • inter-element gap between the dits and dahs within a character: one dot duration or one unit long
  • short gap (between letters): three time units long
  • medium gap (between words): seven time units long (formerly five)
prayer@sh.itjust.works · 7 pts · 2y

So in between every sound is a silent dot, between letter a silent dash, and every word ~2 silent dashes

hesburger@sopuli.xyz · 2 pts · 2y
[ removed ]
hesburger@sopuli.xyz · 1 pts · 2y
[ removed ]
EmoDuck@sh.itjust.works · 6 pts · 2y

Those Loss memes are getting crazy

ccunning@lemmy.world · 5 pts · 2y (5 replies)

This is awesome.

If anyone could explain the reasoning behind it; that would be even more awesome. It always just seemed random to me.

avguser@lemmy.world · 8 pts · 2y

It's effectively a Huffman tree based off the frequency letters occur in the English language used to minimize the overall symbol length duration of each letter in a message.

hesburger@sopuli.xyz · 1 pts · 2y (3 replies)

If anyone could explain the reasoning behind it

The reason behind morse code? It was created to transfer messages through telegraphs

Wild_Mastic@lemmy.world · 6 pts · 2y (1 reply)

Pretty sure he means the dot and dash combinations. As in, why 'A' is not dot, since it's the first letter of the alphabet?

ccunning@lemmy.world · 4 pts · 2y

This is what I mean and am only now realizing I phrased very poorly…

mojofrododojo@lemmy.world · 2 pts · 2y

I think he meant on how the chart is used.

as in, start at the wheel, if the first sound is a dot, go left, if it's a dash, go right. second sound etc

I think this one is easier to read: https://lemmy.world/post/14922746

SubArcticTundra@lemmy.ml · 1 pts · 2y
[ removed ]