User Manual for David30 GNSS Receiver v2.0
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4. Install a Tribrach on the other tripod, adjust it to horizontal level and install
the AX4E02 GNSS antenna and the antenna connector on the tripod.
5. Connect the AX4E02 antenna to the base David30 with the GNSS antenna
cable.
6. Connect the COMM2 port of the David30 receiver to the USB port of an
Android device using COMM2-7pin to USB & 28W-Radio-5pin cable.
7. Install the GNSS antenna cable from the telescopic pole to the 28W radio
station.
8. Connect DC-5pin of the 28W-Radio power cable to the DC port of David30
receiver, and the 28W-Radio-DC-5pin of this cable is to connect to the DC
port of 28W radio, and the Bullet-DC is to connect with Bullet-DC to
Alligator Clips in Figure 2.28.
9. Double check the connections above and connect the alligator clips to the
external battery.
Hardware connection for David30 as a rover with 2W radio
10. Install the AX4E02 GNSS antenna on a ranging pole and place it at the
designated point.
11. Connect the AX4E02 antenna to the rover David30 with the GNSS
antenna cable and connect the 410-470MHz radio whip antenna to the 2W
radio.
12. Install the COMM2-7pin to USB & 2W-Radio-5pin cable to the COMM2
port of the rover David30, and connect the other two connectors to the
USB port of the Android device with cables and to the 2W radio station,
respectively.
13. Power on David30 with an external battery.
Software configuration for David30 as a base with 28W radio
14. Refer to section 3.3.1 for the communication between an Android device