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Rover Kit with 1W Radio
David GNSS Receiver
David GNSS Receiver - Rover 1W (3) 640x340px.jpg
The Tersus David is a cost-efficient, palm-sized GNSS receiver designed for surveying UAVs, AGVs, and agricultural applications. Working with an external GNSS antenna, the free Tersus Survey App and post-processing software, the David GNSS receiver is a low-cost solution for all survey applications, including real-time RTK positioning and data collection for PPK.
David GNSS Receiver - Rover 1W (2) 640x340px.jpg
4GB on board an embedded multimedia card (eMMC) makes it easy to save data for post processing. The compact size, IP67-rated enclosure and external Bluetooth module alleviates most of the inconveniences encountered in field work.
Features
Specifications
In the Box
Documents
Videos
Supports GPS L1/L2, GLONASS G1/G2, and BeiDou B1/B2
Supports RTCM2.3/3.x, CMR, CMR+ corrections
Easy to connect an external powerful radio for long range
Solution update rate up to 10Hz
20Hz raw measurement output for post processing
The carrier phase accuracy down to 1mm
Signal Tracking
+
GNSS
GPS L1/L2
 
GLONASS G1/G2
 
BeiDou B1/B2
Positioning
+
Single Point Positioning Accuracy (RMS)
   - Horizontal
1.5m
   - Vertical
3.0m
RTK (RMS)
   - Horizontal
10mm + 1ppm
   - Vertical
15mm + 1ppm
PPK (RMS)
   - Horizontal
10mm + 1ppm
   - Vertical
15mm + 1ppm
Observation
+
C/A Code (zenith direction)
10cm
P Code (zenith direction)
10cm
Carrier Phase (zenith direction)
1mm
Performance
+
Time to First Fix
   - Cold Start
<50s
   - Warm Start
<30s
Timing Accuracy (RMS)
20ns
Velocity Accuracy (RMS)
0.03m/s
Initialization (typical)
<10s
Initialization Reliability
>99.9%
Electrical
+
Input Voltage
5V~12V DC
Power Consumption
3.2W
Data
+
Storage
4GB on-board eMMC Card
Correction
RTCM2.3/3.x, CMR, CMR+
Max. Update Rate
20Hz
Communication
+
Serial Ports (DB-9 female)
RS232 x2
USB Port
USB 2.0 device x1
Physical
+
Size
104 x 65 x 31mm
Weight
250g (David only)
 
360g (David + BT+PW/USB Cable)
Active Antenna Input Impedance
50Ω
COM Baud Rate
SMA female x1
COM Baud Rate
Up to 921600bps
Operating Temperature
-40℃ ~ +85℃
Dust- & Waterproof
IP67
Optional Accessory
+
Battery
Battery bank
 
Customized battery
Rover Kit with 1W Radio includes
1 x David GNSS receiver
1 x Bracket for rover
1 x Height measure accessory
1 x Ranging pole
1 x USB cable (Type C, Micro) for mobile phone
1 x 1W/915MHz radio antenna
1 x 1W/915MHz radio
1 x COMM2-Bluetooth module
1 x COMM1-USB + DB9 cable
1 x 2pin-USB power cable
1 x GNSS antenna 1.5m RF cable
1 x GNSS antenna connector
1 x GNSS antenna
1 x Carrying case
  • David Rover Kit with 1W Radio Datasheet
    Release Date: 2018-04-16 Version:2.0
  • David GNSS Receiver Brochure
    Release Date: 2018-06-28 Version:1.0
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