
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.
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.
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.
性能
仕様
アイテムリスト
ドキュメント
ビデオ
Supports GPS L1/L2, GLONASS L1/L2, and BeiDou B1/B2
Supports 384 channels
Supports RTCM2.3/3.x, CMR, CMR+ corrections
Easy to connect an external powerful radio for long range
20Hz raw measurement output for post processing
Supports Nuwa & FieldGenius surveying software
信号追跡
+
GNSS
GPS L1/L2
GLONASS L1/L2
BeiDou B1/B2
GLONASS L1/L2
BeiDou B1/B2
測位精度
+
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
観測精度
+
C/A Code (zenith direction)
10cm
P Code
10cm
Carrier Phase (zenith direction)
1mm
性能
+
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%
入力・消費電力
+
Input Voltage
5V~12V DC
Power Consumption
3.2W
データ
+
Storage
4GB on-board eMMC Card
Correction
RTCM2.3/3.x, CMR, CMR+
Max. Update Rate
20Hz
通信ポート
+
Serial Ports (DB-9 female)
RS232 x2
USB Port
USB 2.0 device x1
寸法
+
Size
104 x 65 x 31mm
Weight
250g (David only)
360g (David + BT+PW/USB Cable)
360g (David + BT+PW/USB Cable)
Active Antenna Input Impedance
50Ω
Antenna Connector
SMA female x1
COM Baud Rate
Up to 460800bps
Operating Temperature
-40℃ ~ +85℃
Dust- & Waterproof
IP67
アクセサリー
+
Battery
Battery bank
Customized battery
Customized battery
ソフトウェアサポート
+
Tersus Nuwa
MicroSurvey FieldGenius
Other Third Party Software Support NMEA-0183
Base Kit with 2W Radio includes
1 x David GNSS receiver
1 x DC-2pin to USB Power Cable
1 x COMM1-Bluetooth module
1 x COMM2-7pin to USB & DB9 Cable
1 x USB Type A Female to USB (Micro+Type C) OTG cable
1 x DB9 Male to USB Type A Male converter cable
1 x AX3702 GNSS antenna
2 x GNSS antenna connector
1 x TNC-J to SMA cable 1.5m (GNSS antenna cable)
1 x height measure accessory
1 x wrench
1 x warranty card
1 x DC-2pin to Bullet-DC Power cable
1 x Bullet-DC to Alligator Clips
1 x COMM2-7pin to USB & 2W-Radio-5pin Cable
1 x 2W/460MHz radio
1 x High Gain Radio Antenna
1 x Metal plate for radio antenna
1 x Telescopic pole for radio antenna
1 x Hook and Screws for 2W Radio (attached to 2W radio)
1 x Hook and Screws for David (attached to David)
1 x Bracket for Mobile
1 x tape measure
1 x carrying case
1 x toolbag
David Quick Start Video - David Rover Working with CORS
David Quick Start Video - 2W Radio Working Mode (Base and Rover Setup)
David Quick Start Video - Point-to-Point Working Mode
David Quick Start Video - Static Surveying
David GNSS RTK Receiver Demo Video - Waterproof Demonstration
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