Telephone pager circuit

Single chip microcomputer STM32L151CCU6

Mobile phone crystal 3.2*2.5mm 3225 26M (26.000MHZ) 7.5PF 10PPM 20PPM 30PPM

inductance

SMD aluminum electrolytic capacitor

A pager is a user receiver in a radio paging system. It usually consists of a superheterodyne receiver, a decoder, a control part and a display part. When the pager receives the signal, it sounds or vibrates and displays the relevant information. Referred to as a pager. The circuit diagram of the telephone pager is shown in the figure.