REACH M+ and M2
Deliver centimeter-accurate maps with Reach on a drone. Map wherever you need with less ground control points.
Starting from $265Choose a receiver
PPK Mapping in the Arctic. Water and Ice
Research Laboratory, Carleton University
Reach onboard a drone allows you to drastically cut the number of ground control points (GCPs) this simplifies the setup process on-site and accurately maps even remote areas.
Usually, the 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 only have position readings every 4 m, which is not suitable for precise georeferencing. There is also 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 only be used to check your accuracy.
Connect Reach to a hot shoe port on a camera
Every time a photo is taken the camera produces a pulse on a flash hot-shoe connector which is synced to a shutter opening.
Fly a drone, Reach will record photo events
Reach captures flash sync pulses with sub-microsecond resolution and stores them in a raw data RINEX log in the internal memory.
Download logs from Reach and base station
After the flight, get the RINEX logs from your airborne Reach module and a base station (Reach RS, CORS or another receiver).
Process logs and get a file with geotags
Process RINEX files using free RTKLIB software. The file is created with precise coordinates of the photos and can be used for georeferencing.
To ensure smooth synchronization of Reach and a camera, we recommend you use the Reach M+/M2 hot shoe adapter. You can get it in the Emlid store with UAV kit or separately.
ReachView is easy-to-use software for data collection that is available for both Android and iOS. With ReachView you can control all the features of the Reach receivers, such as setting up a base station, logging RINEX data, configuring NMEA output, and monitoring data.
Reach can trigger cameras as well as register events. The event mark feature is a must for aerial mapping as it allows the precise time when the shutter was activated to be registered.
Logs are automatically recorded directly to RINEX in the internal memory. View a list of the logs and download them using the ReachView app.
ReachView shows current satellite levels, your location on a map, and much more.
We extensively tested Reach M+/M2 in conditions that simulate coldest winters and hottest summers.
If you work within short baselines, then Reach M+ is an optimal choice.
Provides robust performance and quick initialization, allowing work on long baselines.
Up to 10 km
Up to 60 km
Up to 20 km
Up to 100 km
Up to 14 Hz
Up to 20 Hz**coming with a software update,
Reach M+ UAV mapping kit
Reach M+, Reach RS+
and GNSS antenna
Reach M2 UAV mapping kit
Reach M2, Reach RS2
and GNSS antenna
up to 20 km in PPK
up to 100 km in PPK
As a brief synopsis of the results, the maximum deviation of points was no more than 0.09m in all axes. This is an incredible result given the fact that the average pixel size of the resulting imagery was 0.045m.
Tuffwing performed integration of Emlid Reach RTK to enable precision maps to be made without the use of GCPs. The lateral RMS error achieved is just 4cm according to the Pix4D quality report.
With Reach, we produced an orthomosaic in the Drone Data Management System™ with 2.45cm horizontal and 5.08cm vertical RMSE, as compared with a survey-grade GPS on the ground.
ReachView app and all features of Reach receivers are included