Reach M+ – buy RTK/PPK GPS receiver | Emlid Store

Reach M+

From: $265.00

RTK GNSS module for precise navigation and UAV mapping

— Reach M+
— USB cable
— USB-OTG cable
— JST-GH 6-pin to jumper pin cable
— JST-GH 5-pin to jumper pin cable

Two receivers or NTRIP are required for centimeter accuracy

For better understanding of RTK, PPK and NTRIP check an article on how these technologies work. Also, see a detailed article on how PPK works in UAV mapping.

Tallysman GNSS antenna for Reach M+ – optional

In stock

Reach M2/M+ camera hot shoe adapter – optional

In stock

Reach M2/M+ LoRa radio – optional

In stock

Reach M2/M+ JST-GH to DF13 6p-6p cable for Pixhawk 1 – optional

In stock

Reach M2/M+ JST-GH 6p-6p cable for Pixhawk 2 – optional

In stock

Reach M2/M+ JST-GH 6p-6p cable for Edge – optional

In stock

In stock

Shipping from Hong Kong

RTK positioning for navigation

Reach calculates real-time coordinates with centimeter accuracy
and streams them in NMEA or binary format to your device
over UART, Bluetooth or Wi-Fi.

PPK for UAV mapping.
Centimeter accuracy without GCP

Reach module logs precise tracks and the exact moment
when each photo is taken.

Why camera synchronization is so important?

Usually autopilot triggers the camera and records the coordinate it has at the moment. When the drone is flying at 20m/s and GPS works at 5Hz, that means your autopilot will have position readings only each 4m. While enough for navigation such readings are not suitable for precise georeferencing. Also, there is always a delay between the trigger and the actual moment the photo is taken.

Reach module solves this by directly connecting to the camera hot shoe port which is synced to the shutter. The time of each photo is logged with a resolution of less than a microsecond.

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.

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 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 other receiver).

Process logs and get a file with geotags of photos

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

ReachView app



  • Size: 56,4 x 45,3 x 14,6 mm
  • Weight: 20 g
  • Operating tº: -20…+65ºC


  • Input voltage on USB and JST GH connectors: 4.75 - 5.5 V
  • Antenna DC bias: 3.3 V
  • Average current consumption @5V: 200 mA


  • Internal storage: 8 GB
  • Correction input: RTCM2, RTCM3
  • Solution input: ERB, plain text, NMEA (RMC, GGA, GSA, GSV)
  • Logs: RINEX2.X, RINEX3.X


  • Signals: GPS/QZSS L1, GLONASS G1, BeiDou B1, Galileo E1, SBAS
  • Tracking channels: 72
  • IMU: 9DOF
  • Update rate: 14 Hz / 5 Hz


  • Wireless: Wi-Fi (802.11b/g/n), Bluetooth (4.0/2.1 EDR)
  • Interfaces: USB, UART, Event


  • Static: H: 5mm + 1ppm, V: 10mm + 2ppm
  • Kinematic: H: 7mm + 1ppm, V: 14mm + 2ppm
SKU: RCH102-WP Categories: ,
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