Baseline up to 20 km in PPK
Baseline up to 100 km in PPK
Usually autopilot triggers the camera and records the coordinate it has at that moment. When the drone is flying at 20 m/s and GPS works at 5 Hz, that means your autopilot will have position readings only each 4 m, which is not suitable for precise georeferencing. In addition, there is always a delay between the trigger and the actual moment the photo is taken.
Reach solves the problem of positioning by connecting directly to the camera hot shoe port, which is synced with the shutter. The time and coordinates of each photo are logged with a resolution of less than a microsecond. This method allows GCPs to be used only to check your accuracy.
Every time a photo is taken camera produces a pulse on a flash hot-shoe connector which is synced to a shutter opening
Reach captures flash sync pulses with sub-microsecond resolution and stores them in a raw data RINEX log in the internal memory.
After the flight, get the RINEX logs from your airborne Reach module and a base station (Reach RS, CORS or another receiver).
Process RINEX files using free RTKLIB software. The produced file with precise coordinates of the photos can be used for georeferencing.
To calculate centimeter-precise coordinates in PPK and RTK, Reach needs corrections from a base station. It could be either another Reach receiver or an NTRIP service. VRS is also supported.
Reach M2 and M+ work seamlessly with other Reach receivers over any link and are compatible with any other receiver that supports RTCM3 and NTRIP.
If you work within short baselines, then Reach M+ is an optimal choice.
Reach M+, Reach RS+ and GNSS antenna
Provides robust performance and quick initialization, allowing work on long baselines.
Reach M2, Reach RS2 and GNSS antenna