
Military communications or military signals involve all aspects of
communication
Communication is commonly defined as the transmission of information. Its precise definition is disputed and there are disagreements about whether Intention, unintentional or failed transmissions are included and whether communication not onl ...
s, or conveyance of
information
Information is an Abstraction, abstract concept that refers to something which has the power Communication, to inform. At the most fundamental level, it pertains to the Interpretation (philosophy), interpretation (perhaps Interpretation (log ...
, by
armed forces
A military, also known collectively as armed forces, is a heavily armed, highly organized force primarily intended for warfare. Militaries are typically authorized and maintained by a sovereign state, with their members identifiable by a ...
. Examples from ''
Jane's Military Communications'' include text, audio,
facsimile,
tactical ground-based communications,
naval signalling, terrestrial
microwave
Microwave is a form of electromagnetic radiation with wavelengths shorter than other radio waves but longer than infrared waves. Its wavelength ranges from about one meter to one millimeter, corresponding to frequency, frequencies between 300&n ...
,
tropospheric scatter,
satellite communications
A communications satellite is an artificial satellite that relays and amplifies radio telecommunication signals via a transponder; it creates a communication channel between a source transmitter and a receiver at different locations on Earth. ...
systems and equipment,
surveillance
Surveillance is the monitoring of behavior, many activities, or information for the purpose of information gathering, influencing, managing, or directing. This can include observation from a distance by means of electronic equipment, such as ...
and
signal analysis,
security
Security is protection from, or resilience against, potential harm (or other unwanted coercion). Beneficiaries (technically referents) of security may be persons and social groups, objects and institutions, ecosystems, or any other entity or ...
,
direction finding and
jamming.
[ IHS ]Jane's
Janes is a global open-source intelligence company specialising in military, national security, aerospace and transport topics, whose name derives from British author Fred T. Jane.
History
Jane's Information Group was founded in 1898 by Fred ...
br>Military Communications
Retrieved 2012-01-23. The most urgent purposes are to communicate information to commanders and orders from them.
Military communications span from pre-history to the present. The earliest military communications were delivered by
runners. Later, communications progressed to visual signals. For example, Naval ships would use flag signaling to communicate from ship to ship. These flags are a uniform set of easily identifiable nautical codes that would convey visual messages and codes between ships and from ship to shore. Then militaries discovered methods to use audible signaling to communicate with each other. This way of communicating was possible because of telegraphs. They are an electronic device that is used by a sender and when the sender presses on the telegraph key, they interrupt the current creating an audible pulse that is heard at the receiving station. The receiver then decodes the pulses to decode the messages. Since then, military communication has evolved and advanced much further. Today, there are many perspectives used to examine how troops around the world communicate. Anthony King states how Military sociologists have attempted to explain how military institutions develop and maintain high levels of
social cohesion. Communication plays a crucial role in fostering social cohesion in the military, as it allows soldiers to build relationships, establish trust, and work together towards common objectives.
History

In past centuries communicating a message usually required someone to go to the destination, bringing the message. Thus, the term ''communication'' often implied the ability to transport people and supplies. A place under
siege
A siege () . is a military blockade of a city, or fortress, with the intent of conquering by attrition, or by well-prepared assault. Siege warfare (also called siegecrafts or poliorcetics) is a form of constant, low-intensity conflict charact ...
was one that lost communication in both senses. The association between transport and messaging declined in recent centuries.
The first military communications involved the use of runners or the sending and receiving of simple
signals (sometimes
encoded to be unrecognizable). The first distinctive uses of military communications were called ''
semaphore''. Modern units specializing in these tactics are usually designated as ''
signal corps
A signal corps is a military branch, responsible for military communications (''signals''). Many countries maintain a signal corps, which is typically subordinate to a country's army.
Military communication usually consists of radio, telephone, ...
''. The Roman system of military communication (''
cursus publicus
The ''cursus publicus'' (Latin language, Latin: "the public way"; , ''dēmósios drómos'') was the state mandated and supervised courier and transportation service of the Roman Empire, the use of which continued into the Eastern Roman Empi ...
'' or ''cursus vehicularis'') is an early example of this. Later, the terms ''signals'' and ''
signaller
A signaller, signalman, colloquially referred to as a radioman or signaleer in the armed forces is a specialist soldier, sailor or airman responsible for military communications. Signallers, a.k.a. Combat Signallers or signalmen or women, are ...
'' became words referring to a highly-distinct military occupation dealing with general communications methods (similar to those in
civil use) rather than with
weapons
A weapon, arm, or armament is any implement or device that is used to deter, threaten, inflict physical damage, harm, or kill. Weapons are used to increase the efficacy and efficiency of activities such as hunting, crime (e.g., murder), law ...
.
Present-day military forces of an
informational society
An information society is a society or subculture where the usage, creation, distribution, manipulation and integration of information is a significant activity. Its main drivers are information and communication technologies, which have resu ...
conduct intense and complicated communicating activities on a daily basis, using modern
telecommunications
Telecommunication, often used in its plural form or abbreviated as telecom, is the transmission of information over a distance using electronic means, typically through cables, radio waves, or other communication technologies. These means of ...
and
computing
Computing is any goal-oriented activity requiring, benefiting from, or creating computer, computing machinery. It includes the study and experimentation of algorithmic processes, and the development of both computer hardware, hardware and softw ...
methods. Only a small portion of these activities are directly related to combat actions. Modern concepts of
network-centric warfare
Network-centric warfare, also called network-centric operations or net-centric warfare, is a military doctrine or theory of war that aims to translate an information advantage, enabled partly by information technology, into a competitive advantag ...
(NCW) rely on
network-oriented methods of communications and control to make existing forces more effective.
Military communications equipment
Drums
The drum is a member of the percussion instrument, percussion group of musical instruments. In the Hornbostel–Sachs classification system, it is a membranophones, membranophone. Drums consist of at least one Acoustic membrane, membrane, c ...
,
horns,
flag
A flag is a piece of textile, fabric (most often rectangular) with distinctive colours and design. It is used as a symbol, a signalling device, or for decoration. The term ''flag'' is also used to refer to the graphic design employed, and fla ...
s, and
riders on horseback were some of the early methods the military used to send messages over distances. The advent of distinctive signals led to the formation of the
signal corps
A signal corps is a military branch, responsible for military communications (''signals''). Many countries maintain a signal corps, which is typically subordinate to a country's army.
Military communication usually consists of radio, telephone, ...
, a group specialized in the tactics of military communications. The signal corps evolved into a distinctive occupation where the
signaller
A signaller, signalman, colloquially referred to as a radioman or signaleer in the armed forces is a specialist soldier, sailor or airman responsible for military communications. Signallers, a.k.a. Combat Signallers or signalmen or women, are ...
became a highly technical job dealing with all available communications methods including civil ones.
In the middle 20th century
radio
Radio is the technology of communicating using radio waves. Radio waves are electromagnetic waves of frequency between 3 hertz (Hz) and 300 gigahertz (GHz). They are generated by an electronic device called a transmitter connec ...
equipment came to dominate the field. Many modern pieces of military communications equipment are built to both encrypt and decode
transmissions and survive rough treatment in hostile climates. They use different
frequencies
Frequency is the number of occurrences of a repeating event per unit of time. Frequency is an important parameter used in science and engineering to specify the rate of oscillatory and vibratory phenomena, such as mechanical vibrations, audio ...
to send signals to other radio stations to communicate. Radios have played a major role in military communication. Since they are capable of sending radio waves to transmit voice signals over long distances. This can be helpful for communication on the battlefield since it is a good way to send messages undetected over long distances. Radios are also very reliable because even in harsh weather conditions they are still able to help communicate among the soldiers. Militaries still use radios and continue to improve the technology because of their durability and reliability for military communication.
Military communications – or "comms" – are activities, equipment, techniques, and tactics used by the military in some of the most hostile areas of the earth and in challenging environments such as battlefields, on land (compare
radio in a box
Radio-in-a-box (RIAB) is a portable, economical broadcasting system containing a laptop, mixer, CD/Cassette player, digital audio recorder, microphones and equipment needed to establish a radio station in remote or disaster locations.Emergency FM r ...
), underwater and also in air. Military comms include command, control and communications and intelligence and were known as the
C3I model before computers were fully integrated. The U.S. Army expanded the model to
C4I when it recognized the vital role played by automated computer equipment to send and receive large, bulky amounts of data.
In the modern world, most nations attempt to minimize the risk of war caused by miscommunication or inadequate communication. As a result, military communication is intense and complicated and often motivates the development of advanced technology for remote systems such as satellites. Satellites have been improving and are being used more and more for communication. They are being made to have higher transmission capacity to help with their communication abilities. The military is upgrading satellites to be immune to interference during combat operations. This advancement will establish stable, high-quality information highways for long distance communication. Aircraft are also beneficial for communication, both crewed and uncrewed, as well as computers. Computers and their varied applications have revolutionized military comms. Although military communication is designed for warfare, it also supports intelligence-gathering and communication between adversaries, and thus sometimes prevents war.
The six categories of military comms are:
*alert measurement systems
*
cryptography
Cryptography, or cryptology (from "hidden, secret"; and ''graphein'', "to write", or ''-logy, -logia'', "study", respectively), is the practice and study of techniques for secure communication in the presence of Adversary (cryptography), ...
*military radio systems
*
command and control
*
signal corps
A signal corps is a military branch, responsible for military communications (''signals''). Many countries maintain a signal corps, which is typically subordinate to a country's army.
Military communication usually consists of radio, telephone, ...
*
network-centric warfare
Network-centric warfare, also called network-centric operations or net-centric warfare, is a military doctrine or theory of war that aims to translate an information advantage, enabled partly by information technology, into a competitive advantag ...

The alert measurement systems are various states of alertness or readiness for the armed forces used around the world during a state of war, act of terrorism or a military attack against a state. They are known by different acronyms, such as
DEFCON
The defense readiness condition (DEFCON) is an alert state used by the United States Armed Forces. For security reasons, the U.S. military does not announce a DEFCON level to the public.
The DEFCON system was developed by the Joint Chiefs of Sta ...
, or defense readiness condition, used by the U.S. Armed Forces.
Cryptography
Cryptography, or cryptology (from "hidden, secret"; and ''graphein'', "to write", or ''-logy, -logia'', "study", respectively), is the practice and study of techniques for secure communication in the presence of Adversary (cryptography), ...
is the study of methods of converting messages to a form unreadable except to one who knows how to decrypt them. This ancient military comms art gained new importance with the rise of radio systems whose signals traveled far and were easily intercepted. Cryptographic software is also widely used in civilian commerce.
Military Communication for families
Military communication with families is also important for military personnel, so that they can stay in touch with their loved ones. This ensures that during wartime or training, service members feel supported and loved by those they care about most, fostering confidence when they need it most. Military communication with civilian families has been especially beneficial during the United States over decades long deployments in Iraq and Afghanistan.
This will only help troops during rough times and make them push through the struggle of war. This also helps troops stay updated on everything that is happening back home.
Commercial refile
In United States military communications systems, commercial refile refers to sending a military message via a commercial
communications network. The
message
A message is a unit of communication that conveys information from a sender to a receiver. It can be transmitted through various forms, such as spoken or written words, signals, or electronic data, and can range from simple instructions to co ...
may come from a military
network, such as a
tape relay network, a point-to-point telegraph network, a
radio-telegraph network, or the
Defense Switched Network.
Commercial refiling of a message will usually require a reformatting of the message, particularly the heading.
A signal corps is a military branch, responsible for military communications (signals). Many countries maintain a signal corps, which is typically subordinate to a country's army.
Military communication usually consists of radio, telephone, and digital communications.
See also
*
Jane's Military Communications
*
Command and control
*
Signal Corps (disambiguation)
*
Telecommunications
Telecommunication, often used in its plural form or abbreviated as telecom, is the transmission of information over a distance using electronic means, typically through cables, radio waves, or other communication technologies. These means of ...
*
Communications protection
*
Electronic warfare
*
Signals intelligence (SIGINT)
*
Defence Information Infrastructure
*
Kiev Military Institute of Control and Signals
*
Luftwaffe radio equipment of World War II
*
Bowman (British Army communications system)
*
Parakeet (Australian Army communications system)
*
Military Wireless Museum in the Midlands
*
Telegraph troops
Forms of signalling
*
Military hand and arm signals
*
Morse code
Morse code is a telecommunications method which Character encoding, encodes Written language, text characters as standardized sequences of two different signal durations, called ''dots'' and ''dashes'', or ''dits'' and ''dahs''. Morse code i ...
*
Flag semaphore
Flag semaphore (from the Ancient Greek () 'sign' and - (-) '-bearer') is a semaphore system conveying information at a distance by means of visual signals with hand-held flags, rods, disks, paddles, or occasionally bare or gloved hands. Informa ...
*
Flag signals
*
Naval flag signalling
*
Signal lamp
*
Heliograph
A heliograph () is a solar telegraph system that signals by flashes of sunlight (generally using Morse code from the 1840s) reflected by a mirror. The flashes are produced by momentarily pivoting the mirror, or by interrupting the beam with a s ...
*
Radio communications
Radio is the technology of communicating using radio waves. Radio waves are electromagnetic waves of frequency between 3 hertz (Hz) and 300 gigahertz (GHz). They are generated by an electronic device called a transmitter connected t ...
*
Wireless telegraphy
Wireless telegraphy or radiotelegraphy is the transmission of text messages by radio waves, analogous to electrical telegraphy using electrical cable, cables. Before about 1910, the term ''wireless telegraphy'' was also used for other experimenta ...
References
External links
Signal Corps HistorySignal Corps Officer Candidate School History
{{Authority control
Combat support occupations
Telecommunications
Mass media technology