1. Built-in transmit-receive UHF, exchangeable Base and Rover. 2. The radio power is adjustable ... , multi-satellite, multi-system kernel.2. Built-in transmit-receive UHF, exchangeable Base and Rover.3. The radio power is adjustable ... Noise GNSS carrier phase in surveying, accuracy<1mm with 1Hz wide band, Low elevation-angle tracking technology Initialization Time: <10 seconds Initialization ...