RTK GNSS News Roundup: April 2026 Product Updates, UAV Mapping, and Precision Agriculture
April 2026 brought a useful mix of RTK GNSS product updates, UAV mapping workflows, precision agriculture deployments, and positioning technology research. For surveying, mapping, and machine-control teams, the common theme is clear: centimeter-level positioning is moving deeper into everyday field workflows, not only specialist geodesy projects.
CHC Navigation updates GNSS receivers and iBase
CHC Navigation announced updates to its i93, i85, i76 GNSS receivers and iBase professional base station. The update emphasizes stronger RTK stability, multi-frequency tracking, anti-interference capability, and longer base-station radio coverage for demanding jobs such as highways, railways, remote survey sites, forests, and deserts.
Source: GPS World
UAV mapping keeps shifting toward RTK and PPK workflows
CHC Navigation also published a practical explanation of how RTK and PPK are used in precision UAV mapping. RTK provides real-time corrected positions during flight, while PPK gives mapping teams more flexibility after data collection, especially where radio links or network coverage are unreliable. These workflows are central to orthomosaics, DEMs, LiDAR mapping, and 3D reconstruction.
Source: CHC Navigation
AI spraying drones bring RTK into large-scale agriculture
DroneDash Technologies and Geodnet formed Geodash Aerosystems to develop heavy-lift agricultural spraying drones that combine AI vision with centimeter-accurate RTK positioning. The goal is to reduce repeated manual field mapping by letting drones understand crop rows, canopy height, terrain, and spray areas during flight. This points to broader use of RTK beyond classic surveying and into automated agricultural operations.
Source: GPS World
Sensor fusion strengthens RTK GNSS for mobile systems
Mikroe introduced an XSens MTi-8 Click board that combines RTK GNSS and inertial navigation. The board targets use cases where position alone is not enough, including autonomous tractors, robots, drones, mobile mapping, and surveying equipment. GNSS plus INS helps maintain orientation and motion estimates when satellite visibility becomes difficult.
Source: GPS World
Mass-market high precision continues to advance
u-blox announced high-precision RTK GNSS test and design network availability in Taiwan, supporting engineers building devices for robotics, automation, precision agriculture, and autonomous systems. The company also discussed how LEO positioning, navigation, and timing signals could complement GNSS in the future by improving signal strength, geometry, and convergence in challenging environments.
Sources: u-blox Taiwan RTK network and u-blox Celeste LEO PNT
What this means for RTK users
For professional users, the takeaway is that RTK GNSS is becoming more integrated with complete field systems: UAVs, base stations, correction services, inertial sensors, AI perception, and cloud workflows. Buyers should look beyond receiver accuracy alone and evaluate constellation support, correction-service compatibility, radio range, interference resistance, field software, export formats, and service coverage in the regions where the equipment will be used.