The Emlid Reach RS+ is a designed for precise surverying, mapping and data collection. To use it in RTK mode as a GNSS RTK Rover a second Reach RS+ or access to NTRIP corrections will be required.
Emlid RCH202 Features:
Collect Survey Points
Use as Base Station for Surveying / Data Collection
Receive Corrections Data via the Internet
CM Accuracy in RTK Mode (Reach RS+ Survey Kit RCH202-KIT or access to NTRIP corrections required)
Products included in Emlid RCH202 Reach RS+ RTK GNSS Receiver Package:
Carry case with a strap
Adapter for survey pole
Reach RS+ Specifications
GPS / QZSS L1, GLONASS G1
BeiDou B1, Galileo E1, SBAS
72 tracking channels, IMU
Update Rate 14Hz GPS / 5Hz GNSS
RTCM2, RTCM3 corrections
NMEA, ERB, plain text solution output
RINEX2.X, RINEX3.X logs
8GB internal storage
Static horizontal: 5mm+1ppm
Static vertical: 10mm+2ppm
Kinematic horizontal: 7mm+1ppm
Kinematic vertical: 14mm+2ppm
Charging over Micro-USB
External 5-40V input
30 hours on battery
FCC and CE certified
IP67 water and dustproof
145mm x 145mm x 85mm size
Operating in -20+65°C
LoRa 862-1020 MHz radio
WiFi (802.11a / b / g / n)
Bluetooth (4.0 / 2.1 EDR)
Interfaces – USB, RS232, PPS, Event
Centimeter Accuracy with the Reach RS+
For centimeter accuracy the Emlid Reach RS+ GNSS RTK Rover will need to have access to GNSS corrections. There are two ways to acheive this, either by sourcing NTRIP corrections over the internet or by pairing with another unit in RTK mode.
A Base Station is usually set to a known latitude, longitude and height when it is placed, this is referred to as a ‘known’ point. This base will keep monitoring the satellites above and will calculate position corrections and send them to the Rover.
Emlid Reach RS+ can be used as a Base Station, it can either be set up on a ‘known’ point at a static location and ‘transmit’ corrections over the Internet. It can also be set up locally, if this is the case all results will be cm accurate relative to the base station position.
When it comes to using NTRIP or an Emlid Unit transmitting corrections over the internet, it is important to note the ‘baseline’. The baseline is the distance between the GNSS Client and the Base Station in the case of the RS+ the maximum for this is 10Km. The reason for this is further the GNSS RTK Rover from the base station the less accuracy it will have. This is due to different atmospheric conditions at different locations.