How Do Walkie Talkies Work ?

In 1937, it was 40 years before cell phones came into existence. But this is when walkie-talkies (aka two way radios) came into use. In those days, two way radios revolutionized the way we communicate. And they laid the foundation for today's human interaction. Because of their utility and convenience, they are still widely used today. Cell phones rely on cellular networks, but walkie-talkies don't. So how do walkie-talkies work? Let's find out.

What is a walkie-talkie?

A walkie-talkie can be described as a combination of a cell phone and a radio. The name comes from the fact that you can walk and talk at the same time. At the same time, it is a relatively old-fashioned device that can only be used within a relatively short range. They are handheld, quite bulky in some cases, and have a microphone, speaker, and antenna on top.

The appearance of Retevis RT3S Dual Band DMR Radio

How do walkie-talkies work?

Walkie Talkies are battery powered transceivers, meaning they can both send and receive radio messages. They have a half-duplex channel, which means that only one walkie-talkie on a channel can transmit a signal at the same time, although many radios can receive the same signal. You must press the button to make a call in sequence. The button must also be released to hear sounds from other devices.

Most walkie-talkies operate at 27 MHz and 400-500 MHz. these are called ultra-high frequencies (UHF), and they are far beyond the limits of our hearing. Since walkie-talkie signals are not boosted by cell towers, they are also susceptible to obstacles such as mountains that can interfere with the signal path.

Baby monitors are also a form of walkie-talkie, but with one-way transmission only. You can listen to hear if your baby is asleep or awake. You can talk and you will be able to hear any sounds or crackles that let you know if you need to go upstairs to see what your child is doing.

Advantages of using an walkie talkie

1. Timely and efficient

2. Economical

3. Sturdy and durable

4. Responds to emergencies

Disadvantages of using walkie-talkies

1.Half-duplex transmission allows communication in one direction at a time. It is not possible to talk as freely as with a cell phone.

2.They cover a short distance compared to cell phones.

3.The sound quality is not very good. Call clarity is not as good as a cell phone.