RTK Facet L-Band - set with GNSS receiver

Description

Kit with Facet L-Band GNSS RTK receiver and built-in L1/L2 antenna and accessories including cables, USB power adapter and convenient carrying case. Get centimeter-level global positioning measurements with GNSS RTK.

The RTK Facet L-Band is a GNSS receiver designed for positioning with high accuracy down to the centimeter level. It is ideal for measurements, autonomous vehicles and data logging. It is a pre-programmed device that can also be used for autonomous driving, navigation, asset tracking and any other application where the device can connect to a GNSS system. It can be used as a correction source to create an RTK system with 14mm horizontal positioning accuracy. Built-in Bluetooth® connectivity via the WROOM ESP32 allows the user to use the RTK Facet L-Band with the app of their choice on a phone or tablet, while the battery allows over four hours of use in the field and is compatible with popular USB power banks.

RTK Facet L-Band uses corrections from u-blox's PointPerfect service, broadcast from Inmarsat's geosynchronous satellite. The only configuration required is the Wi-Fi SSID and password. Once entered, the device will self-supply and periodically (once a month) update the decryption keys necessary to use the PointPerfect service. The RTK Facet L-Band price includes a 12-month subscription.

The device uses the ESP32 WROOM connected to the ZED-F9P GNSS receiver, the NEO-D9S L-Band receiver (for correction) and various peripherals. In addition, under the RTK Facet L-Band housing is a survey-grade L1/L2/L-Band antenna, which is a unique combination of elements designed to receive GNSS signals (L1/L2) with PointPerfect 1.55 GHz corrections. The built-in antenna has an ARP of 69mm from the base to the L1 antenna test point and an ARP of 68mm to the L2 antenna test point.

RTK Surveyor can be used in four modes:

• GNSS positioning (accuracy up to 30 cm) - the device receives L1/L2 signals, and the GNSS receiver gives the width, length and height with an accuracy of about 300 mm
• L-band RTK GNSS positioning (1.4 to 6 cm accuracy)
• GNSS positioning with RTK (accuracy 1.4 cm) - the device receives L1/L2 signals from the antenna and correction data from the base station
• GNSS base station - the device is mounted e.g. on a tripod and starts sending correction data via radio or internet link
• GNSS base station NTRIP server - the device is mounted in a semi- or permanently fixed position and connects via Wi-Fi to send correction data to the NTRIP

The kit includes adapters, cables and a charger needed to use GNSS. Full documentation with examples of use is available on the product page.

Features

GNSS receiver: ZED-F9P

• Simultaneous reception of GPS, GLONASS, Galileo and BeiDou
• It receives L1C/A and L2C bands
• Current: 68mA - 130mA
• Time to first measurement: 25 s (cold), 2 s (hot)
• Maximum frequency:
• PVT (primary location in UBX binary protocol) - 25 Hz
• RTK - 20Hz
• RAW - 25Hz
• Horizontal Position Accuracy:
• 2.5 m without RTK
• 0.01m with RTK
• Maximum altitude: 50 km
• Maximum speed: 500 m/s

Satellite data receiver: NEO-D9S

• L-Band Data Receiver Compatibility: SESTB28A
• Frequency range: 1525 to 1559 MHz
• Sensitivity: 133 dBm
• Current: 35-130 mA (varies during acquisition and tracking state)
• Time to first measurement: <10 s
• Receives PMP messages from Inmarsat geosynchronous satellites

Bluetooth transceiver: ESP32 WROOM

• Xtensa® LX6 dual-core 32-bit microprocessor
• Clock frequency up to 240 MHz
• 16MB flash memory
• Internal 520kB SRAM
• Integrated WiFi 802.11 BGN transceiver
• Integrated Bluetooth dual mode (classic and BLE)
• Hardware encryption (AES, SHA2, ECC, RSA-4096)

General parameters

• Enclosed IP53 design - protected against limited dust ingress and water splashes
• Internal antenna: L1/L2/L band with ≥5dBi gain
• Internal battery: 6Ah LiPo with 1A fast charge
• Radio port: serial 3.3 V TTL (57600 bps RTCM TX/RX)
• Data Port: Serial 3.3V TTL (115200 bps NMEA)
• Qwiic Port: Supports I2C based accessory devices
• microSD slot: up to 32GB
• Built-in OLED display showing position accuracy, available satellites, data logging, etc.
• One button control
• Works with popular GIS software including: SW Maps, SurvPC, Field Genius and others.
• Project certified for Open Source hardware
• Dimensions: 136x146x80mm

Kit contains

• SparkFun RTK Facet L-Band Receiver
• Protective cover
• Antenna thread adapter - 1/4 inch. up to 5/8 inch.
• Contact plate for GHR-04V cable - 4-pin x 1.25 mm pitch
• GHR-04V to GHR-06V cable - pitch 1.25 mm
• USB A to C cable - 0.8 m
• 5V, 2A USB charger