The two way radio is an important tool in May industries, taxi safety, which provides operators with instant communications contact important information. Generally, two way radios are available as handheld, although the central fixed devices are also used to broader purposes. The history of this device is an interesting history of innovation and experimentation.
In the first step the first receivers and transmitters have been created to transmit the wireless message. Some say it began in 1907 as two-way telegraph across the Atlantic Ocean as a means of communication available commercially. The uses of these devices spread quickly and in 1912 wireless devices have been placed in most commercial and military vessels, to allow communication across the seas.
However, earlier this equipment was in no way portable and usable for transit applications. But everything changed in 1923 when an Australian police, Frederick William Downie, invented the first wireless communication device for mobile patrol cars. As a senior officer of the Police Force of Victoria, said Downie that the current method of telephone communication using strategically placed kiosks were simply inefficient and impractical in view combat crime effectively. Consequently, worked to establish a mechanism to allow agents to communicate between them and the seat of their car. The team continues, however large and heavy, reports claim that over time the radio has taken the entire back seat of patrol cars Lancia.
However, technology has rapidly improved and the size of two way radios to be reduced. The army did not take long to understand the benefits of this device to control the aircraft. This innovation means that drivers no longer had to leave messages for the troops on the ground and were instead able to communicate in real time with other aircraft and commanders. The continuous development in both the military and the application of the law. The Police Department of New York has used a system that allowed response times faster, while the troops during the Second World War used the handheld devices and a backpack for greater operational efficiency.
However, these early systems were serious limitations, the most serious one is that a statement could occur at any time. Because all devices using the same frequency understandable This has led to confusion in many cases. The problem has been solved, however, different transmitters giving its own frequency that the systems are linked a smaller network. The terminology refers to these two systems in a way "simple", single frequency and "duplex" mode frequency Multiple operating.
The first of these devices needed for employee training and learning Morse code, particularly true in terms of transmission. However, the advancement of technology, particularly in the armed forces meant that the voice became a reality. This has led to a more efficient and, therefore, high levels of operational efficiency. Today, devices are simple and easy to use the sense that operations do not require large amounts of training to operate the equipment successfully.
Since its inception small to help police Australia, handheld two-way radio has become easier the lives of many people. Not only has the role of the application the law more successful, but he also played a role in military victories. In the modern era still has a number of applications in the army and police, but in many other sectors as retail is also widely used. In the world of communication there no other device more important.