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Two Way Radios (Also Know As Walkie Talkies)

September 1, 2010

Two way radios use radio signals to allow communication between two people. They work not unlike a telephone, but they just transmit to a specific signal that only the other radio it is paired with can hear. Walkie talkies are another name for this type of device, and they work over miles and miles, making them perfect for whatever use you see fit, including camping, work, and construction. Most people get the FRS/GMRS two way radio for their nonprofessional and regular needs. Department stores tend to carry these kinds of two way radios. The FRS and the GMRS come from the types of signals the two way radio offers. Depending on the channel, you could either be using FRS, GMRS, or both, depending on the type of signal you are using. The first few channels in the spectrum are shared between the two types of signals. In order to talk to someone else with a radio, you have to get on the same signal. Radios that are on channel 7 will transmit your voice to anyone listening in on channel 7, including the other radio. Keep in mind that you have to watch what you say on your radios, since anyone could eavesdrop in on a particular radio signal. Therefore, you can establish a channel that you are relatively sure no one is listening on for you to communicate with. When your group is choosing the channel it will use, the primary concerns should be range and privacy. Purchase of an FCC license is required if you are using a GMRS channel when you use a GMRS channel. You can usually get between a one and a one and a half mile range from an FRS only channel since government regulations allow a maximum of .5 watts of broadcast power. When it comes to privacy, you just have to keep switching channels until you find one that no one else is using. There are times when you might not be able to find a truly private channel, as there are people using every channel, For this there are “privacy codes,” which most decent mid range radios offer. With these codes, you just divide one channel into a hundred or more subchannels, pick the privacy code you want to use, and you will be able to talk free of eavesdropping.

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