The THA-X601A is a multi-frequency external handheld device antenna that covers GPS L1/L2, BDS B1/B2/B3, GLONASS L1/L2/L3, Galileo E1/E5a/E5b, and L-Band signals. It is widely applicable in industries such as surveying, mapping, and navigation, and is particularly suitable for various applications in lightweight drones, including aerial, remote telemetry, disaster monitoring, traffic patrol, and security surveillance.