how to do and use morse code

Morse code one of the oldest existing codes and has played a an importanta role of transfering information during the world wars and this article will explain how to use morse code

 

Introduction

All of us want our messages and conversations to be secret, at least from the general public view. 
This is easy to achieve when we are talking personally but what about the situations when we transmit messages over distance using any medium, be it electronic pulses, radio waves, mechanical devices, or simply voice. I mean what would you do if you are standing on one end of a busy street and want to tell something secret to a person standing on the
other corner.

So a code was developed which could be transmitted over radio waves and electronic pulses and it was named after Samuel Morse, inventor of the electric telegraph. This is known as the Morse code and though it is not in much popular commercial use, it is still a popular hobby and used amongst amateur radio operators. In this article you will learn how to read Morse code and its use on board ships

How to read Morse Code

Basically the Morse code is nothing but a combination of small and long signals which are known as dot and dash, or dit and dah. It may remind you of the binary format used in computers where everything is represented in 0 and 1. In a way, therefore Morse code can be said to be binary though technically speaking
it is not binary in the exact sense but I will not go into those details here.

The Morse code was extensively used on ships by Radio Officers, a post which has almost become obsolete now at least in the modern commercial ships with the advent of GMDSS and related equipment, and the job role of the Radio Officer has been taken over by navigating officers such as the Junior officers, Chief mate or Master. In the list you can see the Alphabets from A to Z, numbers from 0 to 9 and special characters which are represented in Morse code. The symbol of a “period” represents a dot or dit; while the symbol of “underscore” represents a dash or dah. If you have difficulty reading this code given below is an image which shows the code for all alphabets in a more legible form (Courtesy: A.G. Reinhold, Cambridge)

A ·– B –··· C –·–· D –·· E · F ··–· G – –· H ···· I ·· J ·– – – K –·– L ·–·· M – – N –· O – – – P ·– –· Q – –·– R ·–· S ··· T – U ··– V ···– W ·– – X –··– Y –·– – Z – –·· 1 ·– – – – 2 ··– – – 3 ···– – 4 ····– 5 ····· 6 –···· 7 – –··· 8 – – –·· 9 – – – –· 0 – – – – – Period ·–·–·– Comma – –··– – Slash –··–· Plus ·–·–· Equal –···– Question ··– –·· Open Paren –·– –· Close Paren –·– –·– Dash –····– Quote ·–··–· Underscore ··– –·– Single Quote ·– – – –· Colon – – –··· Semicolon –·–·–· Dollar Sign ···–··– Warning ·–··– Error ········ Repetition(ii ii) ·· ··

A-Z Morse Code Pronounciation

 

Morse Code Generator

The adjoining diagram shows the very simple arrangement used to generate morse code which consists of two parts as shown namely the transmitter and the receiver section. This shows a wired arrangement where a transmission key is used to make or break a circuit which in turn energizes an electromagnet at the other end. A pen is connected to the piece of iron which gets depressed and makes a mark of a piece of paper roll which continuously flows along the path as shown. So when a key is pressed for longer duration it makes a long dash '--' on the paper, while when it is pressed for shorter duration it makes a shorter '-' symbol which represents dit symbol.

The same arrangement can also work for wireless and radio systems with the only difference that radio waves are used to carry the signal from the transmitter to the receiver instead of wires


.

Advantages of Morse Code

There can be a long list of advantages of Morse Code such as its ease of use and simplicity and a relatively inexpensive device can be used for morse code communications. A main advantage from the navigation point of view (though it is less relevant for modern ships) is that people who only have elementary knowledge of English can communicate and this is important especially in emergency situations. For example the code for SOS is di-di-dit-dah-dah-dah-di-di--dit. Anyone listening to this code can instantly recognize that some ship, boat or yatch is in distress.

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