T743 BDS-3 Miniaturized Low-Power Short Message Module supports BDS‑2/BDS‑3 regional short message communication. Integrated with RDSS transceiver, baseband, PA and LNA, it supports external SIM and active antenna, delivers 3W transmit power and supplies antenna power via RX port. Its 20mm×20mm×3.2mm stamp-hole SMD package features compact size, high integration and low power consumption, facilitating secondary development. Ideal for emergency monitoring, individual soldier and field terminals as a core short message solution.