hb9kns
/
clstransmissions
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

Apply minor edits to yargo's submission.

This commit is contained in:
Solderpunk 2021-07-19 17:07:03 +00:00
parent 535778b0ac
commit db316f3eed
1 changed files with 4 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
src/issue002/texts/yargo_morse-code-promotion-manifesto.gmi
View File

@ -4,13 +4,13 @@
*(by yargo)*
Morse code seems to be rather useless in these times of ubiquitous digital communication means, but it is highly appealing if you like to keep communication independent of electronic go-betweens.
Morse code seems to be rather useless in these times of ubiquitous digital means of communication, but it is highly appealing if you like to keep communication independent of electronic go-betweens.
### What is Morse code?
(Note: I won't go into the history of Morse code in this text, and I will only talk about the so-called "International Code", not the old "American Code" initially used on telegraph lines. Please consult your favourite Encyclopaedia for further details!)
Morse code is a representation of the latin alphabet, numbers (figures) and some punctuation marks and control signs by long and short signals, intended for consumption by humans. It is a **ternary** encoding with the following basic elements:
Morse code is a representation of the Latin alphabet, numbers (figures) and some punctuation marks and control signs by long and short signals, intended for consumption by humans. It is a **ternary** encoding with the following basic elements:
* short signal followed by a short pause, called "dot",
* long signal followed by a short pause, called "dash",
@ -22,9 +22,9 @@ The ternary nature of Morse code permits characters of varying lengths, and the
### Current Use of Morse Code
While Morse code transmissions were initially the only means to transmit information by radio waves (before the availability of continuous wave oscillators), they are now only used by armed forces, radio amateurs, and some beacon and navigational systems. This is due to the fact that whilst Morse code allows for communication on very noisy channels, it still requires human operators, and there exist modern digital transmission systems which can reliably work under similar noise conditions. Human radio operators are very expensive, and therefore only armed forces and radio amateurs can afford their use and at the same time profit of the low technical requirements and high reliability Morse code offers.
While Morse code transmissions were initially the only means to transmit information by radio waves (before the availability of continuous wave oscillators), they are now only used by armed forces, radio amateurs, and some beacon and navigational systems. This is due to the fact that whilst Morse code allows for communication on very noisy channels, it still requires human operators, and there exist modern digital transmission systems which can reliably work under similar noise conditions. Human radio operators are very expensive, and therefore only armed forces and radio amateurs can afford their use and at the same time profit from the low technical requirements and high reliability Morse code offers.
It has the following advantages to other transmission types:
It has the following advantages over other transmission types:
* It requires only a channel capable of carrying binary signals (the ternary element is defined by timing), permitting use of very simple and consequently reliable/rugged equipment;
* the channel can be very noisy (the limits depending on the experience and collaboration of the operators), allowing Morse code to remain usable even under very bad conditions;