A radiotelephone is any device that is used to send voice transmissions over radio waves. Lots of devices come under this definition. Many radiotelephones can relay messages through traditional land phone lines, although some are utilized mainly for mobile-to-mobile wireless transmissions. Many modern devices for example mobile phones are technically regarded as radiotelephones.

The standard type of radiotelephone is a simple transceiver that sends voice signals to a different station. The radios utilized by police cars are instances of standard radiotelephones. Ships, aircraft, and military units also commonly use radiotelephones for communication, given that they often are employed in situations where other voice transmission methods are not available.

The technical concept of a radiotelephone extends beyond simple point-to-point transceivers, plus includes radios that will interface using the land telephone system. Within this arrangement, a base receiver is associated with a normal phone. Voice signals sent from a mobile radio are picked up from the base station and forwarded through the phone lines. A human operator enables you to connect calls, or perhaps automated tone-controlled system can be employed. These kinds of radiotelephone installations were not unusual before cellular phones became prominent.

Cellular phones are in fact radiotelephones, whilst they are hardly ever called with that name today. Each “cell” or part of phone coverage contains a radio station that’s from the traditional phone grid. A handheld cellular phone unit posesses a short range radio transceiver. Early mobile phone radiotelephone conversations were sent using a standard radio signal and could be found by any receiver around the proper frequency. Modern calls are encrypted in order to avoid eavesdropping.

Despite the availability of cellular phones, a lot of people still use more standard radiotelephones for professional and hobby communication. Businesses often employ mobile voice radios to speak in areas which can be beyond cell coverage, for example remote construction sites. Amateur radio experimenters use handheld and vehicle radiotelephones for connecting to enthusiasts, and have use of private radio repeaters which are similar to the mainstream cellular phone networks.

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