www.dragino.com/products/lora/item/149-lora-gps-hat.html

Features:

• Support Raspberry Pi 3B/3B+/4
• Up to -142.5dBm sensitivity with SX1257 Tx/Rx front-end
• 70 dB CW interferer rejection at 1 MHz offset
• Able to operate with negative SNR, CCR up to 9dB
• Emulates 49x LoRa demodulators and 1x (G)FSK demodulator
• Dual digital TX&RX radio front-end interfaces
• 10 programmable parallel demodulation paths
• Dynamic data-rate (DDR) adaptation
• GPS Module to provide timestamp and location info