Description: 1. Equipped with an intelligent receiving/transmitting discrimination circuit, it does not require front-end equipment to provide receiving/transmitting switching control signals for normal operation. 2. The module defaults to working in the receiving state, amplifying the received signal. When the front-end device detects an external transmission signal, it instantly switches to the transmitting amplification state 3. The transmission gain is adjustable, making it convenient to be compatible with wireless devices with different transmission powers. 4. The transceiver link has extremely high isolation, and the receiving link can withstand strong external interference without causing loop self-excitation. 5. Compatible with modulation methods such as LORA, /ASK/OOK/MSK/GFSK, etc Specifications: Working frequency range: 850MHZ-930MHz Receiving gain: 11dB ± 2dB Receiving noise coefficient: ≤ 2.0dB Transmission gain: 5dB-11dB (± 2dB) adjustable Transceiver switching