Morse
Code - How it works
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| Morse Code as a code
invented to send messages to people over long distances before
the telpehone was invented. It can be used over wires
(telegraph) or by radio signal (wireless). The operator
was only able to send a beep or tapping noise to the next
opperator. |
| Morse Code as listed
here shows the letters as a series of taps of beeps. A dot
means a short beep and a dash means a long beep. |
| If you are receiving
a morse code message and you are not familiar with the letters
you would write down the lenghts of the beeps as dots and dashes
and when the message was finished you could decode it into
letters and words. |
| Morse Code can also
be sent using lights, torches. It works the same
way. A dot is a shoirt flash and a dash is a long
flash. Sometimes you see big navy ships sending morse code
using very powerful lights with shutters on them. |
| Morse code is not
used much any more as we can now send voice and data such as
email and faxes) doen the phone lines. |
| |
| You may have heard
before of ships sinning and they were sending an SOS message for
help. SOS stands for "Save our Souls" and it was
shortened to SOS. This is very easy to hear or see in
morese code as it is 3 short beeps, followed by 3 long beeps
followed by 3 more short beeps. Click
Here to Listen
> |
| |
Phonetic
Alphabet - How it works
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| The phonetic alphabet
is used noramally over radios like CB radios to tell letters
apart. If the reception is bad C and S can sound teh same,
so we can say Charlie & Sierra instead. You often hear
the guards or police using these word over the radio. Look
out for it the next time you are wathcing a policeprogramme on
the TV |