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Oscar GNSS Receiver
with Calibration-Free Tilt Compensation
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The Oscar GNSS Receiver is a new generation GNSS RTK system. It supports calibration-free tilt compensation function which is immune to magnetic disturbances, leveling pole is not required. Easy configuration with 1.54 inch interactive screen on Ultimate and Advanced versions. 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 high-performance antenna can speed up the time to first fix (TTFF) and improve anti-jamming performance. The built-in large capacity battery is detachable, two batteries support up to 16 hours of field work in 4G/3G/2G network and Rover radio mode. The built-in UHF radio module supports long distance communication. 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 IP67 rating, it is robust and reliable for harsh operating conditions.
Features
Specifications
Documents
Videos
Supports multiple constellations & frequencies
- GPS L1, L2, L5
- GLONASS L1, L2
- BeiDou B1, B2, B3
- Galileo E1, E5a, E5b
- QZSS L1, L2, L5
- SBAS (EGNOS, WAAS, MSAS, GAGAN) L1C/A
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
IP67-rated dust-& waterproof enclosure, for reliability in harsh environmental conditions
Signal Tracking
+
GNSS
GPS L1, L2, L5
GLONASS L1, L2
BeiDou B1, B2, B3
GALILEO E1, E5a, E5b
QZSS L1, L2, L5
SBAS (EGNOS, WAAS, MSAS, GAGAN) L1C/A
Channels
576
Positioning
+
Single Point Positioning Accuracy (RMS):
   - Horizontal
1.5m
   - Vertical
3.0m
DGPS Positioning Accuracy (RMS):
   - Horizontal
0.4m
   - Vertical
0.8m
SBAS Differential Positioning Accuracy (RMS):
   - Horizontal
0.6m
   - Vertical
1.2m
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, 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
IP67
Pole drop onto concrete
2m
  • Oscar Datasheet
    Release Date: 2019-11-18 Version:1.8
  • Oscar Brochure
    Release Date: 2019-08-19 Version:1.12
  • Oscar Quick Start
    Release Date: 2019-07-19 Version:1.0
  • Oscar User Manual
    Release Date: 2019-11-25 Version:1.1
  • Oscar Declaration of Conformity
    Release Date: 2019-11-13 Version:1.0
  • Oscar_Item List_Ultimate Base
    Release Date: 2019-11-26 Version:1.1
  • Oscar_Item List_Ultimate Rover
    Release Date: 2019-11-26 Version:1.1
  • Oscar_Item List_Advanced Base
    Release Date: 2019-08-20 Version:1.9
  • Oscar_Item List_Advanced Rover
    Release Date: 2019-08-20 Version:1.8
  • Oscar_Item List_Basic Base
    Release Date: 2019-11-26 Version:1.1
  • Oscar_Item List_Basic Rover
    Release Date: 2019-11-26 Version:1.2
  • Oscar_CE
    Release Date: 2019-11-28 Version:1.0
  • Oscar_RoHS
    Release Date: 2019-11-28 Version:1.0
  • Oscar_KC
    Release Date: 2019-12-03 Version:1.0
Oscar Introduction
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