TELEGRAPH INTERFACE

Click the telegraph key to practice sending signals

FIELD MANUAL: MORSE CODE REFERENCE

RADIO OPERATOR'S INSTRUCTIONS

MORSE CODE: FIELD OPERATOR'S GUIDE

Morse code is a method of transmitting text information as a series of on-off tones, lights, or clicks that can be understood by a skilled listener without specialized equipment. The International Morse Code encodes the 26 Latin letters, some non-Latin letters, the Arabic numerals and a small set of punctuation and procedural signals as standardized sequences of short and long elements.

Basic Elements:

The dotShort signal - "dit" (•) - a short mark or pulse
The dashLong signal - "dah" (−) - a longer mark or pulse
The spacePause between elements - used to separate dots and dashes

Timing Rules:

A dash is three times as long as a dot
The space between parts of the same letter is equal to one dot
The space between letters is equal to three dots
The space between words is equal to seven dots

How to Use This Tool:

Type or paste text in the "Text to Morse Code" field to convert it into Morse code.

Input Morse code in the "Morse Code to Text" field to decode it (use dots, dashes, spaces between letters, and / between words).

Use the Telegraph Interface to manually input Morse code signals.

Click the "Play" button to hear the Morse code audio transmission.

Refer to the Morse Code Reference chart for individual character codes.

COMMON PROCEDURAL SIGNALS

SOS Emergency Signal:

... --- ... (three dots, three dashes, three dots)

End of Message:

.- .-. (AR - sent with no letter space)

Invitation to Transmit:

-.- (K)

Wait:

.- ... (AS - sent with no letter space)

OPERATION TELEGRAPH

MORSE CODE INTELLIGENCE SYSTEM

TEXT TO MORSE CODE

TRANSMISSION OUTPUT:

MORSE CODE TO TEXT

DECODED MESSAGE: