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Home > Products > Oscar GNSS Receiver > Oscar GNSS Receiver
Oscar GNSS Receiver
with Calibration-Free Tilt Compensation
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Empowered by a high precision inertial measurement unit (IMU) on Ultimate version, Oscar GNSS receiver from Tersus is a new generation of tilt survey GNSS receiver. This kind of calibration-free tilt compensation is immune to magnetic disturbances. Oscar gives a surveyor unprecedented flexibility and efficiency - holding the survey pole upright is no longer necessary. With an internal high-performance multi-constellation and multi-frequency GNSS board, the Oscar GNSS Receiver can provide high accuracy and stable signal detection.

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The built-in high-performance antenna can speed up the time to first fix (TTFF) and improve anti-jamming performance. With a Nano-SIM card inserted in Oscar, it can access Internet, transmit and receive correction data through 4G/WiFi network. The built-in UHF radio module supports long distance communication. The built-in large capacity battery is detachable and can display power level. Two batteries support up to 16 hours of fieldwork in 4G/3G/2G network and Rover radio mode. Oscar can be easily configured with 1.54 inch interactive screen on Ultimate and Advanced versions. The rugged housing protects the equipment from harsh environments.





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The Tersus TC20 Controller is a rugged smart phone with design of 4.3'' touch screen and an alphanumerical keypad. Equipped with powerful processor, it is perfect to adapt with Tersus Survey software. With professional IP68 rating, it is robust and reliable for harsh operating conditions.
Features
Specifications
Documents
Videos
Supports multiple constellations & frequencies
- GPS L1C/A, L2C, L2P, L5
- GLONASS L1C/A, L2C/A
- BeiDou B1I, B2I, B2a, B3I
- Galileo E1, E5a, E5b
- QZSS L1C/A, L1C, L2C, L5
Supports 576 channels
410-470MHz UHF radio, 4G network, Wi-Fi, Bluetooth, NFC
Tilt compensation without calibration, immune to magnetic disturbances
Various working modes
16GB/8GB internal storage
Up to 16 hours working in RTK mode
IP68-rated dust-& waterproof enclosure, for reliability in harsh environmental conditions
Signal Tracking
+
GNSS
GPS L1C/A, L2C, L2P, L5
GLONASS L1C/A, L2C/A
BeiDou B1I, B2I, B2a, B3I
Galileo E1, E5a, E5b
QZSS L1C/A, L1C, L2C, L5
Channels
576
Positioning
+
Single Point Positioning Accuracy (RMS):
   - Horizontal
1.5m
   - Vertical
3.0m
DGPS Positioning Accuracy (RMS):
   - Horizontal
0.4m
   - Vertical
0.8m
High-Precision Static (RMS)
   - Horizontal
3 mm + 0.1 ppm
   - Vertical
3.5 mm + 0.4 ppm
Static & Fast Static (RMS)
   - Horizontal
3 mm + 0.5 ppm
   - Vertical
5 mm + 0.5 ppm
Real Time Kinematic (RMS)
   - Horizontal
8 mm + 1 ppm
   - Vertical
15 mm + 1 ppm
Post Processed Kinematic (RMS)
   - Horizontal
8 mm + 1 ppm
   - Vertical
15 mm + 1 ppm
Network Real Time Kinematic (RMS)
   - Horizontal
8 mm + 0.5 ppm
   - Vertical
15 mm + 0.5 ppm
Observation Accuracy (zenith direction):
   - C/A Code:
15cm
   - P Code:
20cm
   - Carrier Phase:
1mm
Time To First Fix (TTFF):
   - Cold Start:
<35s
   - Warm Start:
<10s
Reacquisition:
<1s
Tilt Compensation Accuracy (within 30° )
≤2cm
*Details refer to performance comparison table in Oscar datasheet.
Timing Accuracy (RMS):
20ns
Velocity Accuracy (RMS):
0.03m/s
Initialization (Typical)
<10s
Initialization Reliability
>99.9%
System & Data
+
Operating System
Linux
Storage
16GB internal
Data Format
CMR, RTCM 2.X/3.X
Data output
RINEX, NMEA-0183, TersusBinary
Data update rate:
20Hz
Electrical
+
Input Voltage
9~28V DC
Power Consumption (Typical)
Network or Radio receive mode:
≈ 5W
Radio transmit mode (0.5W):
≈ 8W
Radiotransmit mode (1W):
≈ 9W
Radiotransmit mode (2W):
≈ 11W
Lithium Battery
7.4V 6400mAh x2*
*Oscar uses one battery at a time, the other is a substitute. Each battery lasts up to 8 hours when Oscar works in 4G/3G/2G network and Rover radio mode. Two batteries add up to 16 hours of continuous use.
Communication
+
Cellular
4G LTE/TD-SCDMA/WCDMA/GPRS/GSM
Cellular bands (EU version):
LTE FDD B1/B2/B3/B4/B5/B8/B20
WCDMA B1/B2/B5/B8
GSM/GPRS 1900/1800/900/850MHz
Network protocols
Ntrip Client,Ntrip Server, Tersus Caster Service (TCS)
WiFi
802.11b/g
*Hardware of Wi-Fi module is ready, the function will be supported by firmware update.
Bluetooth
4.1
Interal Radio
   - RF transmit power
0.5W/1W/2W
   - Frequency
410MHz - 470MHz
   - Operating mode:
Half-duplex
   - Channel spacing:
12.5KHz / 25KHz
   - Modulation type:
GMSK, 4FSK
   - Air baud rate:
4800 / 9600 / 19200bps
   - Distance (Typical)
>5km
   - Radio protocols:
TrimTalk450, TrimMark 3, South, Transparent, Satel
Wired communication
   - USB OTG
USB 2.0 x1
   - Serial ports
RS232 x1
   - COM baud rate:
up to 921600bps
Physical
+
Display
1.54’’ OLED
*Details refer to performance comparison table in Oscar datasheet.
Dimension
157x157x103mm
Weight
≈ 1.2kg (without battery)
≈ 1.4kg (with a battery)
Operating Temperature
-40℃ ~ +75℃
Storage Temperature
-55℃ ~ +85℃
Relative Humidity
100% not condensed
Dust & Water Proof
IP68
Pole drop onto concrete
2m
Oscar Introduction
Oscar Waterproof Test
Oscar Quick Start Video - Static Surveying with Oscar
Oscar Quick Start Video - Oscar Working with TCS
Oscar Quick Start Video - Oscar Working with Internal Radio
Oscar Quick Start Video - Oscar Base Working with External Radio
Oscar Quick Start Video - Oscar Rover Working with CORS
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