Description :

The RTK Express Plus Kit includes everything needed to get centimeter level global positioning measurements using GNSS RTK
Kit includes L1/L2 antenna, adapters, interface cables, and chargers
RTK Express Plus is a Bluetooth® enabled multi-band GNSS receiver with built-in IMU
Provides 300mm approximate accuracy out of the box and 14mm accuracy with RTCM corrections
Works with common GIS software for Android and iOS
Adds an internal IMU for accurate automotive positioning even when GNSS is lost in tunnels, parking garages, etc.
Does not support a base station or generating RTCM corrections
Recommended to use cellular phone as the radio backhaul for RTCM
Data can be logged to a phone over Bluetooth® or to a microSD card (not included)
Does not include a mono-pod or tripod or a cell-phone type holder
The L1/L2 antenna has a 5/8″ thread and kit includes a 5/8″ to 1/4″ adapter, additional adapters may be needed

Features:

SparkFun RTK Express Plus GNSS Receiver
RTK Kit Carrying Case
GNSS L1/L2 Multi-Band Antenna – TOP106
Antenna Interface Cable – SMA to TNC (300mm)
1/4″ to 5/8″ Antenna Thread Adapter
USB Wall Charger – 5V, 2A
USB A to C Cable – 0.8m
Data Cable
Radio Cable
Features:
Supported GIS Data Collector Software:

SWMaps (Android and iOS)
Field Genius
SurvPC
Survey Master
Vespucci
QGIS
QField
Any GIS software that uses Bluetooth SPP or BLE
GNSS Receiver: ZED-F9R

Concurrent reception of GPS, GLONASS, Galileo and BeiDou
Receives both L1C/A and L2C bands
Built-in IMU (triple axis accel, triple axis gyro)
Current: 68mA – 130mA (varies with constellations and tracking state)
Time to First Fix: 25s (cold), 2s (hot)
Max Navigation Rate:
PVT (basic location over UBX binary protocol) – 25Hz
RTK – 20Hz
Raw – 25Hz
Horizontal Position Accuracy:
2.5m without RTK
0.010m with RTK
Max Altitude: 50km (31 miles)
Max Velocity: 500m/s (1118mph)
Bluetooth Transceiver: ESP32 WROOM

Xtensa dual-core 32-bit LX6 microprocessor
Up to 240MHz clock frequency
16MB of flash storage
520kB internal SRAM
Integrated 802.11 BGN WiFi transceiver
Integrated dual-mode Bluetooth® (classic and BLE)
Hardware accelerated encryption (AES, SHA2, ECC, RSA-4096)
2.5 µA deep sleep current
Overall Device

Internal Battery: LiPo 1300mAh with 500mA charging
Radio Port: 3.3V TTL Serial (57600bps RTCM TX/RX)
Data Port: 3.3V TTL Serial (115200bps NMEA)
Embedded OLED Display for available satellites, data logging, and more.
Push button controls
Weight: 162g (entire device including battery)
Dimensions: 132mm x 101mm x 32mm (5.2in x 3.9in x 1.2in)
1x Qwiic Connector
1x microSD Socket for optional logging
Works with common GIS software including: SW Maps, SurvPC, Field Genius, et al.
GNSS Multi-Band L1/L2 Surveying Antenna

Gain: ≥5dBi
LNA Gain: 40dB
Reception Frequencies
L1: 1555 to 1615MHz
L2: 1198 to 1278MHz
50 Ohm Antenna Impedance
Overall antenna weight: 335g
Bare antenna element weight (including MMCX connector, with RF shield): 160g
Dimensions: 148 x 55mm
Waterproof IP67
Connector: Female TNC