2JCP3682101Cc - High Precision GPS/GLONASS/SBAS/RTK/L1/L2 Ceramic Antenna | 2J Antennas
Amazon.com: SparkFun GNSS-RTK Accessory Kit - Includes 1x GNSS Magnetic Mount Antenna 1x Antenna Ground Plate 1x Reversible USB A to USB C Cable 0.8 Meter Cable Length - Designed for The
External Antenna Improves Performance of RTK Receiver in Forest | GIM International