Wireless pager, also known as wireless transmitter, mainly propagates through ground waves, sky waves, space waves, and scattered waves. It has a wide range of applications, including the service industry, catering and entertainment industry, medical industry, manufacturing industry, etc. It has now developed into the third-generation spread spectrum frequency hopping intelligent wireless pager system. Many friends have bought wireless calling devices but don't know how to use them. Today, the editor will share the wireless calling device manual with you. Let's take a look together!

1、 What is a wireless pager

A wireless pager, also known as a wireless calling system, consists of a wireless pager receiving host and a wireless pager extension. It is commonly referred to as a wireless pager in the industry. Wireless electronic devices generally consist of a transmitting part and a receiving part. The transmitter is used to generate remote control commands and high-frequency modulation carriers, so the transmitter includes an encoder and a transmitting circuit. The transmission circuit usually consists of a main oscillator circuit, a modulator, a buffer stage, and a high-frequency power amplifier. The transmitter is divided into three types: frequency modulation (FM, FSK), amplitude modulation (AM, ASK), and phase modulation.