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The Seagull GPK is an industrial-grade, single-band GNSS receiver and event logger engineered for professional UAV photogrammetry and mapping. It is optimized for centimeter-level accuracy and turns satellite telemetry into microsecond-accurate photo geotags.
It can process Real-Time Kinematic (RTK), Post-Processed Kinematic (PPK) and Moving Baseline (MB) navigation modes on a compact 16-gram footprint. Powered by a high-performance u-blox NEO-M8P-2 GNSS architecture, the module captures raw carrier phase measurements to deliver position precision down to 2.5cm.
The listing positions it as a new benchmark for high-accuracy surveying payloads, turning a standard commercial multirotor into a professional-grade geospatial mapping platform.
Multi-mode kinematic engine: natively supports BASE/ROVER, RTK, PPK and Moving Baseline positioning profiles.
Microsecond event syncing: a high-speed hardware input pin logs the exact moment of each camera shutter trigger.
Onboard data storage: an integrated micro SD card slot records raw satellite logging files, and a 16GB card is supplied.
Ultra-lightweight: the main module weighs only 16 grams.
About 2.5cm precision: in RTK mode with the u-blox NEO-M8P-2 receiver.
Standard GPS gives position within a few metres. RTK and PPK use carrier-phase measurements and a reference to refine that to centimetres. RTK does it live, while PPK records raw data during the flight and computes the corrected positions afterwards, which often gives more reliable results because the calculation can look at the whole flight.
For photogrammetry, each photo needs an accurate position and time. The GPK's event input records the exact instant the camera fires, so every image can be geotagged with high-precision coordinates and the resulting map or 3D model is more accurate.
Professional aerial photogrammetry and GIS data indexing
Cadastral and land surveying
Precision agriculture: crop analysis and forest canopy measurement
Volumetric mining inspections
Dynamic navigation for multirotors in high-vibration environments
The listing states compatibility with Pixhawk 1, Pixhawk 2.1 Cube, Pixracer and APM flight controllers running ArduPilot or PX4 firmware. It takes 3.9V to 12V input (5V recommended) and refreshes at up to 10Hz in RAW/PPK mode.
The standard package contains the core 16g receiver module, one matched high-gain GNSS antenna, a 16GB micro SD card with its full-size adapter and product registration documents.
Brand: Seagull UAV
Model: SEAGULL-GPK series
GNSS chipset: u-blox NEO-M8P-2 single-band
Supported satellites: L1C/A (GPS), L1OF (GLONASS), B1I (BeiDou)
Positioning accuracy: about 2.5cm (RTK mode)
Maximum refresh rate: 10Hz RAW/PPK mode
Onboard storage: 16GB micro SD card with adapter
Input voltage: DC 3.9V to 12V (5V recommended)
Weight: 16g (main module)
1 x Seagull GPK receiver module (16g)
1 x matched high-gain GNSS antenna
1 x 16GB micro SD card with full-size adapter
Product registration document files
Survey and mapping teams who need RTK/PPK accuracy and precise camera event logging on a Pixhawk-based UAV.
Pixhawk 1, Pixhawk 2.1 Cube, Pixracer and APM, running ArduPilot or PX4.
The listing quotes about 2.5cm in RTK mode.
BASE/ROVER, RTK, PPK and Moving Baseline.
16 grams for the main module.
3.9V to 12V, with 5V recommended.
The receiver module, a matched high-gain antenna, a 16GB micro SD card with adapter and registration documents.
| Brand | Seagull UAV |
|---|---|
| Accuracy | ~2.5cm RTK |
| Compatible Flight Controllers | Pixhawk 1, Pixhawk 2.1 Cube, Pixracer, APM |
| Data Logging | 16GB micro SD card |
| GNSS Chipset | u-blox NEO-M8P-2 (single band) |
| GNSS Constellations | GPS L1C/A, GLONASS L1OF, BeiDou B1I |
| Input Voltage | 3.9-12V DC (5V recommended) |
| Update Rate | 10.000000 Hz |
| Weight | 16.000000 g |
| Selling unit | PCS |
