Product description: SparkFun RTK Facet - for geodetic measurements - SparkFun GPS-19984
SparkFun RTK Facet is a device used to perform measurements in RTK - Real Time Kinematic technology . This type of measurement uses satellites because they provide the most precise values that are required in geolocation and surveying. SparkFun RTK Facet has a built-in ESP32 WROOM chip with a dual-core 32-bit Xtensa LX6 microprocessor clocked up to 240 MHz, 16 MB of Flash memory and 520 KB of internal SRAM memory. The device also has an integrated WiFi 802.11 b / g / n transceiver and Bluetooth dual-mode (classic and BLE).
Real Time Kinematic - technology for precise geodetic measurements.
What is RTK?
The abbreviation comes from the English term for Real Time Kinematic ( RTK GPS) and describes the technology of precise measurements that are performed using satellite navigation. RTK measurement has centimeter accuracy and is obtained in real time (without performing calculations after measurement in the so-called post-processing). RTK is a measurement technology used in geodesy and cartography because they enable very fast determination of the position of the satellite antenna phase center of the receiver. SparkFun RTK Facet can be used in four modes:
- GNSS positioning (accuracy ~ 30 cm) - also known as "Rover"
- GNSS Positioning with RTK (1.4cm accuracy) - also known as "Rover with RTK Fix"
- GNSS Base Station
- GNSS Base Station NTRIP Server
Kit contents
- 1x SparkFun RTK Facet - main measuring instrument
- 1x SparkFun RTK Facet Case - case for the measuring instrument
- 1x Antenna Adapter - 1/4 inch to 5/8 inch
- 1x Breadboard cable for GHR-04V 4-pin - 1.25 mm pitch
- 1x GHR-04V cable for GHR-06V - 1.25 mm pitch
- 1x USB A - USB C cable - 0.8 m long
- 1x USB power supply - 5 V / 2 A
Technical specification of the GNSS receiver
- Receiver Model: ZED-F9P
- Simultaneous reception of satellites: GPS, GLONASS, Galileo and BeiDou
- Receives bands: L1C / A and L2C
- 184 channel u-blox F9
- Current Draw: 68mA to 130mA (varies with constellation and tracking status)
- Start time: 25s (cold start), 2s (quick start)
- Maximum Navigation Speed:
- PVT (primary localization via UBX binary protocol) - 25 Hz
- RTK - 20 Hz
- Raw - 25 Hz
- Accuracy of horizontal position:
- 2.5 m without RTK
- 0.010 m with RTK
- Maximum altitude: 50 km
- Maximum speed: 500 m / s
SparkFun RTK Facet - for geodetic measurements - SparkFun GPS-19984.
The set includes a convenient case for storing elements.
Technical specification of the RTK Facet device
- Built-in system: ESP32 WROOM
- Processor: Xtensa LX6 Dual Core 32-bit microprocessor
- Clock frequency: up to 240 MHz
- Flash memory: 16 MB
- Internal SPRAM memory: 520 kB
- Integrated WiFi transceiver 802.11 b / g / n
- Integrated dual-mode Bluetooth (classic and BLE)
- Hardware accelerated encryption (AES, SHA2, ECC, RSA-4096)
- Internal antenna: L1 / L2 with ≥ 5 dBi gain
- Internal battery: built-in Li-Pol with a capacity of 6 Ah with quick charging 1 A
- Radio port: 3.3V TTL serial (57600 bps RTCM TX / RX)
- Data port: 3.3V TTL serial (115200 bps NMEA)
- Qwiic connector: for connecting peripherals based on the I2C bus
- MicroSD memory card slot: supports cards with a capacity of up to 32 GB
- Screen: Built-in OLED display for reading data
- Control: one button
- Works with popular GIS software, including: SW Maps , SurvPC , Field Genius , et al. * Open Source Hardware Certified Project
- Protection class: IP53 - protection against the limited ingress of dust and water splashes
- Dimensions: 136 x 146 x 80 mm
- Weight: 583 g
