The THA-7603A is a multi-frequency external drone antenna that covers GPS L1/L2, GLONASS L1/L2, BDS B1/B2/B3, and Galileo E1/E5b 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.