Two Way Radios: Advantages and Disadvantages

A two-way radio communication is a hand-held radio, which can both receive and transmit radio waves, unlike an ordinary broadcast receiver which only receive information. It is also a multi-transmitter, a sender and receiver in a single unit, utilized for bidirectional communication with other wireless users with similar devices. Basically, these devices are used to receive and send radio waves as well as data at the same time. The distance between two users using this kind of device is not longer than the width of their communicating channel. In addition, these types of devices work well in free space.

2way radio

There are different types of two-way radios; the most popular ones being walkie-talkies (which are very portable), simplex and mplx. Walkie-talkies are ideal for private citizens, military personnel, cema operators, rescue workers, etc. Simplex is the basic model of two-ways; it can receive and transmit signals within a limited area. Meanwhile, mplx (also known as Multi-mode) is a more complex model, which is capable of operation in longer ranges. These two models differ in terms of features, but they work almost identically. Mplx devices are usually found on larger devices such as police radar systems.

In a typical two-ways radio, there is usually a database of channels which can be controlled by a station controller. This control is done by pushing a button on the controller, which directs the radio’s antenna to scan a particular number of channels up to a certain height above the horizon. When a signal is detected, a signal decoder on the radio shows a graphic representation of the detected radio signal, which is then sent to the central database or control.

Some two-ways radios have a dedicated scanner, which allows them to scan a wider range. They may allow transmission of data, which is useful if you want to send a message to multiple people at once, or if you want to send a document from your computer to someone else’s computer. On some models, the scanner can also be used to scan an image. However, most scanners will not allow scanning images.

Two-way radios of different manufacturers will vary in terms of the available channels and the available scan features. The Motorola Deva Pro, for instance, has a wider scanner and more channels than the Deva Mini, the other main contender. The radios from Walkie-Talkies and Motorola are similar in the way that they scan; although the Walkie-Talkies only offer one hundred and twenty channels. The Motorola PA-12 allows for eighty-eight channels while the Walkie-Talkies offer only sixty-two channels. The PDA phone from Walkie-Talkie has slightly lower maximum radio stations than the Blackberry Q10.

Some 2-way radios have a feature called trunking. This is where multiple phones can be connected to a single PDA by using the same frequencies. There are drawbacks to trunked radio systems, such as limited reception and interference with other devices. Some trunked systems are duplex, allowing users to establish connections with hundreds of other PDA devices.