A radio transmitter is used in a device known as the walkie-talkie, whereby a person can send code messages to another person through that walkie-talkie. Generally, the message sent in these walkie-talkies is limited to the walkie-talkie itself. The radio transmitter helps to send these messages, for instance, by using the radio waves in that area. In places where getting phone signals are hard; these radio transmitters work the best. Now, these radio transmitters help… Continue reading Why do professional security guards in Los Angeles use radio transmitters?