NEO-M9N four GNSS receiver with 35mm Antenna and EMI protection - Eltehs GNSS OEM Store
Cuav U Blox ANN MB RTK GNSS Antenna C RTK 9P Extended Antenna For Rc Drone / Multi Axis Frame / Drone Model Flight Control Combo|Parts & Accessories| - AliExpress
GNSS Multi-Band Magnetic Mount Antenna - 5m (SMA) - GPS-15192 - SparkFun Electronics
Ublox NEO-M8N GPS Module w/ Built-in HMC5883L Compass Protective Case with GPS Antenna Mount