avirtech is a precision agriculture technology company in Asia
Avirtech EMLID M2M - Precision Agriculture Technology Company

EMLID – REACH M2/M+

RTK GNSS modules for UAV mapping



Positioning with centimeter accuracy in RTK and PPK. For precise UAV mapping with less GCPs

REACH M+

Single-band
Baseline up to 20 km in PPK

REACH M2

Multi-band
Baseline up to 100 km in PPK

Avirtech precision agriculture technology equipment: RTK GNSS modules for UAV mapping

PPK mapping with centimeter accuracy. Use fewer GCPs

Why camera synchronization is so important

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 eliminates the delay

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.

Step 1 of using Avirtech emlid reach m2m: Connect Reach to a hot shoe port on a camera

1. Connect Reach to a hot shoe port on a camera

Every time a photo is taken camera produces a pulse on a flash hot-shoe connector which is synced to a shutter opening

Step 2 of using Avirtech emlid reach m2m: Fly a drone, Reach will record photo events

2. 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.

Step 3 of using Avirtech emlid reach m2m: Download logs from Reach and base station

3. 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).

Step 4 of using Avirtech emlid reach m2m: Process logs and get a file with geotags of photos

4. Process logs and get a file with geotags of photos

Process RINEX files using free RTKLIB software. The produced file with precise coordinates of the photos can be used for georeferencing.

Avirtech emlid reach m2m ntrip base station

NTRIP or another Reach as a base station

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.

Compatibility

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.

Choosing between Reach M+ and Reach M2

Reach M+ and Reach RS+

If you work within short baselines, then Reach M+ is an optimal choice.

RTK

UP TO 10KM

PPK

UP TO 20KM

Time To Fix

1-2 min

Frequency Bands

Single-Band

RINEX logging update rate

Up to 14 Hz

Avirtech emlid Reach M+ UAV mapping kit for precision agriculture technology equipment

Reach M+ UAV mapping kit

Reach M+, Reach RS+ and GNSS antenna

Reach M2 and Reach RS2

Provides robust performance and quick initialization, allowing work on long baselines.

RTK

UP TO 60 KM

PPK

UP TO 100 KM

Time To Fix

5 Sec

Frequency Bands

Multi-Band

RINEX logging update rate

Up to 20 Hz

Avirtech emlid reach M2 UAV mapping kit for precision agriculture technology equipment

Reach M2 UAV mapping kit

Reach M2, Reach RS2 and GNSS antenna