Very often, the terms walkie-talkies and two-way radios are used interchangeably, but there are some differences between the two. Walkie-talkies are portable devices with push-to-talk technology that transmit one radio channel at a time with no use of towers, and during that time any number of people listen and remain in the receive mode. However, these devices can be limited in range and have fewer features.
Two-way radios, as the name implies, send and receive two-way signals. Similar to walkie-talkies they don’t require towers or electricity. Most often, they can be seen mounted in a vehicle or on a desk. There are two different types – full and half duplex. The first ones send and receive signals one by one, while the other send and receive signals simultaneously.
They work by converting audio to radio waves that are then transmitted through the air and received by other radios which convert the radio back to audio. The conversion to radio waves can be sent as an analogue or digital signal. Digital transmission is a modern technology, which makes it possible to send other types of data over the radio waves such as text messages.
They are used worldwide and are some of the most commonly used pieces of communication equipment. Depending on your needs, you can buy a two way radio for use over a small area or for a larger area of coverage. Before making a purchase, here are a few thoughts that may help you find the right device.
A Brief History
Early versions of the technology did not allow for the use of voice communication and messages were sent and received via codes, such as Morse code. The use of transmitters and receivers for two-way communication started in the 1900s, but the radios back then didn’t completely meet the definition of ‘’two-way’’. A separate transmitter and receiver were used to ensure successful two-way communication.
In 1923 the first two-way radios were used commercially. As technology progressed, it was Australian, Frederick William Downie, who developed the first two-way communication device. Within the same decade, radio equipment became more advanced and more powerful. This led to more widespread usage, with ships and aircraft using two-way communication.
Even though modern technology has changed many facets of everyday life, two-way communication devices are still used in many different situations. They’re used in various industries and remain one of the most common forms of communication.
Their Uses
Two-way radios can be used for business purposes and recreationally, for managing public and individual safety and more. Here are some of the most common uses.
Emergency Services
When urgent information or instructions need to be disseminated between emergency service staff members or from a dispatcher to personnel in the field, then two-way radios are the most reliable solution.
Security
Security staff has relied on two-way communication devices for a long time to help them carry out their duties effectively. They offer a constant information flow and can help them organise quickly in case an emergency arises. In event management, for example, a number of security personnel may be safeguarding a festival and be in contact with each other, so they can plan their strategy and organise themselves.
Transport
Two-way communication devices have always been used in the transport industry. They’re great for drivers to communicate with each other or with a central dispatcher.
Factory and Warehouse
In the manufacturing industry, two-way radios are mainly used to ensure there is no delay or difficulty in communication between staff. They can help maximise productivity and efficiency.
Hospitality and Retail
Two-way communication devices are commonly used in the retail and hospitality industries as well. Retailers who are occupying large units need to find an effective way for staff to communicate with each other and large hotels and resorts need to ensure their employees can communicate in real-time, all in order to keep customers happy and optimise workflow.
Construction Sector
In the construction sector, people are on the move all of the time. Between operating dangerous machinery and transporting heavy materials, there is no room for error, and a reliable communication solution is needed. Two-way radios are safe, easy to use and durable, therefore, perfect for use in construction environments.
Educational Facilities
They are commonly used in schools, colleges and universities. Very often, these buildings stretch over a large area and two-way communication devices are the most efficient way to communicate, especially for the staff who are in charge of the health and welfare of the students. These devices can be beneficial during certain events and areas, such as sporting or music events, assemblies, field trips, playgrounds bus loading zones, school crossings and more.
Oil and Mining
Oil workers work offshore and need effective communication to keep them in contact with one another. Modern forms of technology have not yet found a way to facilitate effective communication outside the remit of mobile signals and internet connectivity, and two-way radios remain an excellent solution.
Popular Brands
When it comes to two-way communication devices, there are a lot of different brands to choose from. Here are some of the most popular brands on the market these days.
Motorola
This is a brand with an outstanding reputation. They’re known as a leading telecommunication company and have released the first handheld phones. They’re responsible for developing the first walkie-talkie, too.
Hytera
The brand was founded in 1993 and is a renowned manufacturer of radio systems and transceivers. They have an exceptional range of two-way radios.
Icom
This is a reputable two way radio brand whose products can be found worldwide. Their devices are compact and durable and have a reasonable battery life.
Kenwood
Kenwood is a brand with a long history in audio devices. Their two-way communication devices offer exceptional clarity even in harsh environments and are designed for comfort and ease of use.
Peltor
This is a 3M-owned brand that specialises in the design and manufacture of two-way radio headsets and more. Their products can be used in noisy and hazardous environments.