... mother board of Pacific Crest, a Trimble Company, multi-satellite, multi-system kernel.2. Built-in transmit-receive UHF ... be 0.1w, 1w, 2w.4. 1+X multi-module communication units. 5. PCC Radio module (optional) ... dustproof and anti-drop.V30 Technical Parameters: Signal Channels: GPS: L1 C/A, L2E, L2C, L5 GLONASS: ... Storage temperature: -55~+85 a lasted advanced multi-channel, multi-frequency RTK GPS system