
User Manual for David GNSS Receiver v2.1
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2.2.4 TNC-J to TNC-J Cable 1.0m (Radio Antenna Extension Cable)............ 31
2.2.5 Bracket for 460M antenna with TNC-TNC converter................................ 32
2.3 Base Kit Network Mode.........................................................................................32
2.3.1 Bracket for Base............................................................................................. 34
2.3.2 Tape Measure................................................................................................. 34
2.3.3 Other accessories...........................................................................................35
2.4 Base Kit with 2W Radio Station........................................................................... 35
2.4.1 DC-2pin to Bullet-DC Power cable...............................................................38
2.4.2 Bullet-DC to Alligator Clip..............................................................................38
2.4.3 High Gain Radio Antenna..............................................................................38
2.4.4 Metal plate for radio antenna........................................................................ 39
2.4.5 Telescopic pole for radio antenna................................................................39
2.4.6 Hook and Screws for 2W Radio................................................................... 40
2.4.7 Hook and Screws for David...........................................................................40
2.4.8 Bracket for Mobile...........................................................................................40
2.4.9 Other accessories...........................................................................................41
2.5 Base Kit with 30W Radio Station......................................................................... 41
2.3.1 30W Radio....................................................................................................... 44
2.3.2 DC-2pin & 30W-Radio-DC-2pin to Bullet-DC.............................................45
2.3.3 COMM2-7pin to USB & 30W-Radio-5pin Cable........................................ 45
3. General operation...................................................................................................46
3.1 Install the GNSS antenna..................................................................................... 46
3.2 Power on David...................................................................................................... 46
3.3 Communication between Android phone and David........................................ 48
3.3.1 Wires connection............................................................................................ 48
3.3.2 External Bluetooth Connection..................................................................... 50
3.4 Firmware Update....................................................................................................52
3.4.1 Hardware Connection.................................................................................... 52
3.4.2 USB to Serial COMM Port driver..................................................................52
3.4.3 Firmware Update................................................................................................. 55