Technical Specifications
This chapter mainly introduces the technical specifications of Oscar Trek GNSS receiver, TC80 Controller , external radio and internal radio whip antenna.
Oscar Trek GNSS receiver
Table 3.1 Oscar Trek GNSS receiver performance
+------------------------------------------+-----------------------------------------------------------+----------------------------------------------------+------------------+ | GNSS Performance | | | | +------------------------------------------+-----------------------------------------------------------+----------------------------------------------------+------------------+ | Position accuracy(RMS) | Single Point Positioning | 1.5m (Horizontal) | | +------------------------------------------+-----------------------------------------------------------+----------------------------------------------------+------------------+ | | | 3.0m (Vertical) | | +------------------------------------------+-----------------------------------------------------------+----------------------------------------------------+------------------+ | | DGPS Positioning | 0.25m (Horizontal) | | +------------------------------------------+-----------------------------------------------------------+----------------------------------------------------+------------------+ | | | 0.5m (Vertical) | | +------------------------------------------+-----------------------------------------------------------+----------------------------------------------------+------------------+ | | High Precision Static | 2.5mm+0.1ppm (Horizontal) | | +------------------------------------------+-----------------------------------------------------------+----------------------------------------------------+------------------+ | | | 3.5mm+0.4ppm (Vertical) | | +------------------------------------------+-----------------------------------------------------------+----------------------------------------------------+------------------+ | | Static & Fast Static | 2.5mm+0.5ppm (Horizontal) | | +------------------------------------------+-----------------------------------------------------------+----------------------------------------------------+------------------+ | | | 5mm+0.5ppm (Vertical) | | +------------------------------------------+-----------------------------------------------------------+----------------------------------------------------+------------------+ | | Post Processed Kinematic | 2.5mm+1ppm (Horizontal) | | +------------------------------------------+-----------------------------------------------------------+----------------------------------------------------+------------------+ | | | 5mm+1ppm (Vertical) | | +------------------------------------------+-----------------------------------------------------------+----------------------------------------------------+------------------+ | | Real Time Kinematic | 8mm+1ppm (Horizontal) | | +------------------------------------------+-----------------------------------------------------------+----------------------------------------------------+------------------+ | | | 15mm+1ppm (Vertical) | | +------------------------------------------+-----------------------------------------------------------+----------------------------------------------------+------------------+ | | Network Real Time Kinematic | 8mm+0.5ppm (Horizontal) | | +------------------------------------------+-----------------------------------------------------------+----------------------------------------------------+------------------+ | | | 15mm+0.5ppm (Vertical) | | +------------------------------------------+-----------------------------------------------------------+----------------------------------------------------+------------------+ | Observation accuracy (zenith direction) | C/A code | 10cm | | +------------------------------------------+-----------------------------------------------------------+----------------------------------------------------+------------------+ | | P code | 10cm | | +------------------------------------------+-----------------------------------------------------------+----------------------------------------------------+------------------+ | | Carrier phase | 1mm | | +------------------------------------------+-----------------------------------------------------------+----------------------------------------------------+------------------+ | Time To First Fix (TTFF) | Cold start | <35s | | +------------------------------------------+-----------------------------------------------------------+----------------------------------------------------+------------------+ | | Warm start | <10s | | +------------------------------------------+-----------------------------------------------------------+----------------------------------------------------+------------------+ | Reacquisition | <1s | | | +------------------------------------------+-----------------------------------------------------------+----------------------------------------------------+------------------+ | Tilt compensation accuracy (within 60° ) | ≤2cm | | | +------------------------------------------+-----------------------------------------------------------+----------------------------------------------------+------------------+ | Timing accuracy (RMS) | 20ns | | | +------------------------------------------+-----------------------------------------------------------+----------------------------------------------------+------------------+ | Velocity accuracy (RMS) | 0.03m/s | | | +------------------------------------------+-----------------------------------------------------------+----------------------------------------------------+------------------+ | Initialization (typical) | 4s | | | +------------------------------------------+-----------------------------------------------------------+----------------------------------------------------+------------------+ | Initialization reliability | >99.99% | | | +------------------------------------------+-----------------------------------------------------------+----------------------------------------------------+------------------+ | System & Data | | | | +------------------------------------------+-----------------------------------------------------------+----------------------------------------------------+------------------+ | Operating system | Linux | | | +------------------------------------------+-----------------------------------------------------------+----------------------------------------------------+------------------+ | Storage | built-in 16GB/8GB | | | +------------------------------------------+-----------------------------------------------------------+----------------------------------------------------+------------------+ | Data format | CMR, CMR+ (GPS only), RTCM 2.3, RTCM3.0, RTCM3.1, RTCM3.2 | | | +------------------------------------------+-----------------------------------------------------------+----------------------------------------------------+------------------+ | Data output | RINEX, NMEA-0183, Tersus Binary | | | +------------------------------------------+-----------------------------------------------------------+----------------------------------------------------+------------------+ | Software Support | | | | +------------------------------------------+-----------------------------------------------------------+----------------------------------------------------+------------------+ | Tersus Nuwa, MicroSurvey FieldGenius | | | | +------------------------------------------+-----------------------------------------------------------+----------------------------------------------------+------------------+ | Communication | | | | +------------------------------------------+-----------------------------------------------------------+----------------------------------------------------+------------------+ | Cellular | 4G LTE/WCDMA/GSM | | | +------------------------------------------+-----------------------------------------------------------+----------------------------------------------------+------------------+ | Cellular bands | FDD LTE 1,3,7,8,20,28A | 2,4,5,12,13 | | | | | | | | | | TDD LTE 38,40,41 | | | | | | | | | | | WCDMA 1,8 | 2,5 | | | | | | | | | | GSM3,8 | | | | +------------------------------------------+-----------------------------------------------------------+----------------------------------------------------+------------------+ | Network protocols | Ntrip Client, Ntrip Server, Tersus Caster Service (TCS) | | | +------------------------------------------+-----------------------------------------------------------+----------------------------------------------------+------------------+ | Wi-Fi | 802.11b/g | | | +------------------------------------------+-----------------------------------------------------------+----------------------------------------------------+------------------+ | Bluetooth | 4.1 | | | +------------------------------------------+-----------------------------------------------------------+----------------------------------------------------+------------------+ | Internal 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 | 4800/9600/19200 bps | | +------------------------------------------+-----------------------------------------------------------+----------------------------------------------------+------------------+ | | Distance (typical) | >5km | | +------------------------------------------+-----------------------------------------------------------+----------------------------------------------------+------------------+ | | Radio protocols | TrimTalk450, TrimMark 3, South, Transparent, Satel | | +------------------------------------------+-----------------------------------------------------------+----------------------------------------------------+------------------+ | USB OTG | USB 2.0 x1 | | | +------------------------------------------+-----------------------------------------------------------+----------------------------------------------------+------------------+ | Serial ports | RS232 x1 | | | +------------------------------------------+-----------------------------------------------------------+----------------------------------------------------+------------------+ | COM baud rate | Up to 921600bps | | | +------------------------------------------+-----------------------------------------------------------+----------------------------------------------------+------------------+ | Electrical | | | | +------------------------------------------+-----------------------------------------------------------+----------------------------------------------------+------------------+ | Input voltage | +9 ~ 28V DC | | | +------------------------------------------+-----------------------------------------------------------+----------------------------------------------------+------------------+ | Power consumption | Network or radio receive mode | | ≈ 5W | +------------------------------------------+-----------------------------------------------------------+----------------------------------------------------+------------------+ | | Radio transmit mode (0.5W) | | ≈ 8W | +------------------------------------------+-----------------------------------------------------------+----------------------------------------------------+------------------+ | | Radio transmit mode (1W) | | ≈ 9W | +------------------------------------------+-----------------------------------------------------------+----------------------------------------------------+------------------+ | | Radio transmit mode (2W) | | ≈ 11W | +------------------------------------------+-----------------------------------------------------------+----------------------------------------------------+------------------+ | Lithium battery | 7.4V 6400mAh x2 | | | +------------------------------------------+-----------------------------------------------------------+----------------------------------------------------+------------------+ | Battery charging temperature: | +10°C ~ +45°C | | | +------------------------------------------+-----------------------------------------------------------+----------------------------------------------------+------------------+ | Battery working time | Up to 7 hours | | | +------------------------------------------+-----------------------------------------------------------+----------------------------------------------------+------------------+ | Physical | | | | +------------------------------------------+-----------------------------------------------------------+----------------------------------------------------+------------------+ | Display | 1.54'' OLED | | | +------------------------------------------+-----------------------------------------------------------+----------------------------------------------------+------------------+ | Dimension | 157*157*103 mm | | | +------------------------------------------+-----------------------------------------------------------+----------------------------------------------------+------------------+ | Weight | ≈ 1.2kg (without battery), ≈ 1.4kg (with a battery) | | | +------------------------------------------+-----------------------------------------------------------+----------------------------------------------------+------------------+ | Screw hole for assembly | 5/8"x11UNC-2B | | | +------------------------------------------+-----------------------------------------------------------+----------------------------------------------------+------------------+ | Vibration | MIL-STD-810G,FIG.514.6C-1 | | | +------------------------------------------+-----------------------------------------------------------+----------------------------------------------------+------------------+ | Environmental | | | | +------------------------------------------+-----------------------------------------------------------+----------------------------------------------------+------------------+ | Operating temperature | -40°C to +70°C | | | +------------------------------------------+-----------------------------------------------------------+----------------------------------------------------+------------------+ | Storage temperature | -55°C to +85°C | | | +------------------------------------------+-----------------------------------------------------------+----------------------------------------------------+------------------+ | Relative humidity | 100% not condensed | | | +------------------------------------------+-----------------------------------------------------------+----------------------------------------------------+------------------+ | Water & dust proof | IP68 | | | +------------------------------------------+-----------------------------------------------------------+----------------------------------------------------+------------------+ | Pole drop onto concrete | 2m | | | +------------------------------------------+-----------------------------------------------------------+----------------------------------------------------+------------------+
The pin definition's view from outside to the serial port is as below.
Figure 3.1 Serial data port of Oscar Trek
Table 3.2 Pin definition of the serial data port
Connector Pin No. Pin Definition
1 GND
2 GND
3 PWR
4 TXD
5 RXD
The pin definition of the TNC connector is as below:
Table 3.3 Pin definition of the TNC connector
Connector Pin No. Pin Definition
Inside Signal
Outside Ground
The pin definition of the battery contacts is as below:
Table 3.4 Pin definition of the battery contacts
Connector Pin No. Pin Definition
1 + Positive
2 Data
3 Clock
4 - Negative
Table 3.5 Default factory configuration for internal radio
Channel Frequency
00 457.550MHz
01 458.050MHz
02 458.550MHz
03 459.050MHz
04 459.550MHz
05 460.550MHz
06 461.550MHz
07 462.550MHz
08 463.550MHz
09 464.550MHz
Customized frequency 410~470MHz
Table 3.6 Detailed configuration information for internal radio
Protocol Modulation type Channel band Air baud rate COM baud rate
TrimTalk450 GMSK 12.5 KHz 4800 bps 9600/19200/38400/115200bps
GMSK 25 KHz 9600 bps 9600/19200/38400/115200bps
TrimMark3 GMSK 50 KHz 19200 bps 9600/19200/38400/115200bps
Transparent GMSK 12.5 KHz 4800 bps 9600/19200/38400/115200bps
GMSK 25 KHz 9600 bps 9600/19200/38400/115200bps
Satel 4FSK 12.5 KHz 9600 bps 9600/19200/38400/115200bps
4FSK 25 KHz 19200 bps 9600/19200/38400/115200bps
South GMSK 12.5 KHz 4800 bps 9600/19200/38400/115200bps
GMSK 25 KHz 9600 bps 9600/19200/38400/115200bps
GMSK 50 KHz 19200 bps 9600/19200/38400/115200bps
TC80 controller
Table 3.7 TC80 technical specification
+------------------------+------------------------------------------------+ | System | | +------------------------+------------------------------------------------+ | Operating System | Android 12 | +------------------------+------------------------------------------------+ | CPU | Octa-Core 2.0GHz | +------------------------+------------------------------------------------+ | Memory | 6GB RAM + 64GB ROM | +------------------------+------------------------------------------------+ | External storage | Micro SD, up to 256GB | +------------------------+------------------------------------------------+ | Display | 5.5″ sunlight-readable capacitive touch screen | +------------------------+------------------------------------------------+ | Resolution | 720x1440 | +------------------------+------------------------------------------------+ | Camera | 13MP Auto Focus Camera | +------------------------+------------------------------------------------+ | Flash Light | High light Flash LED | +------------------------+------------------------------------------------+ | Electrical | | +------------------------+------------------------------------------------+ | Battery | 7700mAh 3.8V | +------------------------+------------------------------------------------+ | Battery Life | 10 hours | +------------------------+------------------------------------------------+ | Charging Time | <4 hours (fast charge) | +------------------------+------------------------------------------------+ | Communication | | +------------------------+------------------------------------------------+ | Wi-Fi | IEEE 802.11a/b/g/n 2.4G&5G | +------------------------+------------------------------------------------+ | Cellular Mode | Dual SIM Dual Standby | +------------------------+------------------------------------------------+ | SIM1 & SIM2 | FDD-LTE B1/B3/B5/B7/B8 | | | | | | TDD-LTE B38/B39/B40/B41 | | | | | | WCDMA B1/B2/B5/B8 | | | | | | GSM B2/B3/B5/B8 | | | | | | CDMA/EVDO BC0/BC1 | +------------------------+------------------------------------------------+ | Bluetooth | BT5.0 (BLE) | +------------------------+------------------------------------------------+ | USB | USB Type-C (supports OTG) | +------------------------+------------------------------------------------+ | NFC | Protocol of ISO14443A/B, and ISO15693 | | | | | | Readable Distance 0~5cm | +------------------------+------------------------------------------------+ | GNSS | GPS/GLONASS/BeiDou | +------------------------+------------------------------------------------+ | Sensors: | G-Sensor, Compass, Light-Sensor, Gyro | +------------------------+------------------------------------------------+ | Physical | | +------------------------+------------------------------------------------+ | Dimension | 221.3mmx77.7mmx19.6mm | +------------------------+------------------------------------------------+ | Weight | 320g (include battery) | +------------------------+------------------------------------------------+ | Reliability | | +------------------------+------------------------------------------------+ | Operating Temperature | -20°C ~ +60°C | +------------------------+------------------------------------------------+ | Storage Temperature | -30°C ~ +70°C | +------------------------+------------------------------------------------+ | Humidity | 5% ~ 95% | +------------------------+------------------------------------------------+ | Dustproof & Waterproof | IP68 | +------------------------+------------------------------------------------+ | Shock | 1.5m drop onto concrete | +------------------------+------------------------------------------------+
Radio whip antenna
The 410-470MHz radio whip antenna is to be installed on the TNC port to transmit or receive signal for the internal radio. This antenna is elastic whip structure, resistant to bending.
Table 3.8 Radio whip antenna technical specification
Technical Specification
Frequency Range 410~470MHz
Bandwidth 60MHz
Polarization Mode Vertical
Gain 2dBi
Input Impedance 50Ω
VSWR ≤2.5
Maximum Power 20W
Connector TNC Male
Antenna Length 168mm
Antenna Weight About 50g
Extreme Wind Speed 120 Km/h