Miniaturized Beidou-3 Short Message Communication Module

The miniaturized and low-power Beidou-3 short message communication module (hereinafter referred to as the "Module"), Model T743, integrates the regional short message communication functions of Beidou-2 and Beidou-3. It is internally equipped with RDSS transceiving RF chips, baseband chips, PA circuits and LNA circuits, and supports external SIM cards and active antennas. The antenna signal is input to the S port, and the module can supply power to the antenna through the RX port. The power amplifier circuit provides a transmitting power of 3W. Adopting stamp-hole surface mount packaging, the T743 features ultra-small dimensions of only 20mm×20mm×3.2mm, high integration and low power consumption. It greatly facilitates users’ secondary application development based on Beidou-3 short message services.