| Specifications and Technical Information |
| Base GPS receiver type | Trimble NetRS |
| Base receiver memory | 850 MB, partitioned for low-rate (15 sec) and high-rate (1 sec) data logging  |
| Base antenna type | Trimble Zephyr Geodetic |
| Radio transmitter type | Trimble HPB450 |
| Radio transmitter frequency | 460 MHz (450 and 470 MHz also available) |
| Radio transmitter power | 2 W |
| Rover GPS receiver type | Trimble R7 |
| Rover antenna type | Trimble Zephyr |
| Rover radio type | Trimble R7 internal |
| RTK survey range | ~ 5 km |
| Kinematic survey accuracy (horizontal) | 1cm + 1ppm (x baseline length) |
| Kinematic survey accuracy (vertical) | 2cm + 2ppm (x baseline length) |
| Static survey accuracy (horizontal) | 5mm + 0.5ppm (x baseline length) |
| Static survey accuracy (vertical) | 5mm + 1ppm (x baseline length) |
| GPS rover internal battery life | <1 hours |
| GPS rover external battery life | 12 hours (small battery), 48 hours (large battery) |
| GPS receiver memory | 512 Mb compact flash card (24 months continuous at 30 sec logging rate) |