- It is a method of transmitting text information as a series of on-off tones, light , or clicks that can be directly understood by skilled listener or observer without special equipment.
- It is named for Samuel F.B Morse, an inventor of the telegraph.
- A standardized sequences of short and long signal called "dots" and "dashes" or "dits" and "dahs" as in amateur radio practice.
- Dashe is "-" and dot is ".".
"Vibroplex" used to generate Morse code "Straight key or J-38" used in world war II
Tips for learning Morse Code:
- T, E = 1 character each.
- A, I, M, N = 2 characters.
- D, G, K, O, R, S, U, W = 3 characters.
- B, C, F, H, J, L, P, Q, V, X, Y, Z = 4 characters each.
- Reverse letters, some letters are the reverse of each other in Morse code.
- Ex: "A" is ".-" while "N" is "-.".
- Here are the rest of the letters that are the reverse of each other.
- A & N, D & U, G & W, B & V, F & I, Q & Y.
Emergency Signal:
- In an emergency, Morse code can be sent by improvised methods that can be easily "keyed" on and off, making it one of the simplest and most versatile methods of telecommunication.
- The most common distress signal is SOS or three dots, three dashes and three dots, internationally recognized by treaty.
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| Navy man sends a Morse code signal |
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| SOS, the standard emergency signal |
Uses:
- It is used in Navy.
- It is used in aeronautical.
Advantages:
- Easy to send.
- Cheap.
- No interference.
- Wireless.
Disadvantages:
- Time consuming.
- you have to learn the Morse code.
- The beam of light interrupted.
Examples:
Video:
My notes images:
