Learn Alphabet 1
# Morse Code for "1" — Pattern, Mnemonic & Audio 1 ·−−−− Listen to 1 1 = ·−−−− (1 dit, 4 dahs)
### Mnemonic one-WORLD-WAR-ONE-WON Syllable-based memory aid ### Koch Lesson Lesson 37 When this character is introduced ### Timing 1 + 3 + 3 + 3 + 3 units At 20 WPM: 780ms total ### Type Number International Morse Code (ITU-R M.1677-1) 0 View all characters 2
### Common Words with 1 F I R S T 1 9 4 1 1 8 4 4 1 9 1 2 1 0 0 W P M
### Abbreviated Numeral (Cut Number) ·−−−− Full (5 elements) → ·− Cut = A
Cut number: A (·−). The abbreviation saves 3 elements (·−−−− vs ·−). Used extensively in contest and traffic handling. In Amateur Radio
Appears in signal reports (519 = weak but readable), frequencies (1.8 MHz = 160m band), and RST reports. In cut numbers, 1 becomes A (·−). In Aviation
Appears in runway designations (Runway 18 = due south), altitudes (FL180 = 18,000 feet), and ILS categories (CAT I, CAT II, CAT III). In Maritime
Appears in buoy numbers, channel designations, and the SOLAS Chapter 1 requirements for radio equipment. ### Practice Strings Containing 1 11 21 31 41 51 61 71 81 91 101
### Learn More Koch Method Trainer Translate with 1 Your name in Morse Amateur Radio CW

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Canonical: https://morsely.org/learn/character/1