Transcript B9241004 呂珮瑜 B9241017 夏志怡 B9241024 曹書瑜 B9241038 楊立誠 B9241055 陳俐瑾 History of Morse code      The invention of the Morse telegraphy system Samuel F.

B9241004 呂珮瑜
B9241017 夏志怡
B9241024 曹書瑜
B9241038 楊立誠
B9241055 陳俐瑾
History of Morse code
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The invention of the Morse telegraphy
system
Samuel F. B. Morse (1791-1872)
Professor of arts and design & Inventor of
Morse Code
Assistant - Alfred Vail
Development of the code & Transmit
instruments
From Washington to Baltimore - "What
hath God wrought?"
Morse code originated on telegraph lines
with clicking sounds
American Morse code as
International Morse
 Semi-automatic “bug” keys (1902)
Employment of electronic keyers that
create “dits” & “dahs”
 Today’s experienced operators
 Copy text without writing & Transmit
20 ~ 30 words/minute
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Introduction of Morse code
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Long & Short pulses – representing the letters
of the alphabet
Assign pattern to each character
Dits – short key closures
Dahs – long
key closures
Dash time = Dot time x 3
International Morse users created dahs with
longer key closure
Pulses are translated into electrical signals by
using a telegraph key
Transmission made possible for any distance
Radio communications – The widespread of
international Morse
Some things to know
about Morse code
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Not only learned by book
Practice
Morse code table
Used when other communications are
unavailable
Most widely recognized signaling
Allowed on all radio frequencies
Easily understood
Highly reliable in difficult communication
conditions
Application of Morse code
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The R.M.S Titanic’s SOS distress call
in 1912. - "Save Our Ship"
News about
Morse code
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Make conversation effective between
different nations
Letter
Morse Code
國際標準報讀法
A
‧ ─
ALFA
B
─‧ ‧ ‧
BRAVO
C
─‧ ─‧
CHARLIE
D
─‧ ‧
DELTA
E
‧
ECHO
F
‧ ‧ ─‧
FOXTROT
G
──‧
GOLF
H
‧ ‧ ‧ ‧
HOTEL
I
‧ ‧
INDIA
J
‧ ───
JUULETT
K
─‧ ─
KILO
L
‧ ─‧ ‧
LIMA
M
──
N
─‧
MIKE
NOVEMBER
O
───
P
‧ ──‧
Q
──‧ ─
QUEBEC
R
‧ ─‧
ROMEO
S
‧ ‧ ‧
SIERRA
OSCAR
PAPA
T
─
TANGO
U
‧ ‧ ─
UNIFORM
V
‧ ‧ ‧ ─
VICTOR
W
‧ ──
WHISKY
X
─‧ ‧ ─
X-RAY
Y
─‧ ──
YANKEE
Z
──‧ ‧
ZULU
Digits
Morse Code
短打
1
‧ ────
‧ ─
2
‧ ‧ ───
‧ ‧ ─
3
‧ ‧ ‧ ──
‧ ‧ ‧ ──
4
‧ ‧ ‧ ‧ ─
‧ ‧ ‧ ‧ ─
5
‧ ‧ ‧ ‧ ‧
‧ ‧ ‧ ‧ ‧
6
─‧ ‧ ‧ ‧
─‧ ‧ ‧ ‧
7
──‧ ‧ ‧
──‧ ‧ ‧
8
───‧ ‧
─‧ ‧
9
────‧
─‧
0
─────
─
Punctuation Mark
Morse Code
Full-stop (period)。
‧─‧─‧─
Comma ，
──‧‧──
Colon
───‧‧‧
Question mark (query) ?
‧‧──‧‧
Apostrophe `
‧────‧
Hyphen ─
─‧‧‧‧─
Fraction bar
─‧‧─‧
Brackets (parentheses) []
─‧──‧─
Quotation marks ‘’
‧─‧‧─‧
At sign @
‧──‧─‧
Equals sign =
─‧‧‧─
Morse Code Bracelet
Sapphire= 1dot,
Emerald= 2 dots,
Ruby= 1 dash....
Eva Martin Jewellery