Emlid Reach RS3 RTK Receiver

01

The UHF radio in the Reach RS3 receives corrections only, and it never transmits

The Reach RS3 carries a UHF radio in the 410 to 470 MHz band, using the TRIMTALK 450S protocol. Emlid states this radio outright as receive-only. It never transmits. A buyer planning to run an RS3 as a UHF base, broadcasting corrections out to a UHF rover, cannot do that with this radio. Receiving corrections from a third-party UHF base needs a separate 410 to 470 MHz antenna, sold apart from the receiver and not included in the box. Two other radios in this receiver do transmit and receive corrections out of the box. The built-in LoRa radio sends and receives up to 8 km line of sight, and pairs base-to-rover with another Reach RS2, RS2+ or RS3. The built-in LTE modem, with a nano-SIM, carries corrections over NTRIP wherever cellular coverage reaches. If a UHF base is the plan, call us first and we will confirm the radio setup fits.

03

Tilt compensation needs no field calibration, and initializes in about 20 meters of walking

Tilt compensation lets the pole lean off vertical, useful near walls or under cover, without walking back to stand it up straight. Emlid calibrates each RS3 individually at the factory, so no field calibration is needed before first use. The tilt sensor is unaffected by magnetic fields, Emlid states, so it keeps working close to metal structures. Initialization takes about 20 meters of walking, or 10 to 20 seconds of tilting the pole. Emlid Flow, free on iOS and Android, is the primary app for tilt-compensated surveying. Emlid's own third-party integration table lists guided support for Microsurvey FieldGenius, but only on Android and Windows, not iOS, and most other listed apps, including QGIS, ArcGIS Field Maps, Mergin Maps and Global Mapper, show that same pattern. Check the table against your app and platform before buying for a specific workflow.

05

18 hours as a tilted rover, 22 hours logging, and an IP67 shell for both

As an RTK rover with tilt on, the Reach RS3 holds an 18 hour charge. Switch tilt off and log without it, and the same battery stretches to 22 hours. The pack is 5,200 mAh, 7.2 V lithium-ion, rated for more than 2,000 charge cycles, charging over USB-C at 5 V, 3 A. Maximum power draw is 10 W. An external connector accepts 6 to 40 V and can turn the receiver on and off automatically, for use as a permanent base or mounted on a vehicle. The polycarbonate body, wrapped in an elastomer coating, resists drops and rates IP67: dust-tight and waterproof to one meter of continuous immersion, across -20 to +65 degrees Celsius. The receiver measures 126 x 126 x 142 mm, weighs 950 g, and mounts on a 5/8 inch thread.

07 FOR UNIVERSITIES, COLLEGES AND GOVERNMENT AGENCIES

Warranty coverage is mixed across Emlid's own pages, so call and we will confirm it

Emlid's product page, its documentation site and its Hong Kong store state no warranty term for the Reach RS3 anywhere. Emlid's own global store page states a free one-year warranty for this same receiver. Call us and we will confirm current coverage before you order. The receiver ships with a first year of Emlid Corrections included, a network correction service accurate to 1 to 2 cm with no base station or NTRIP setup required; further years are a separate paid subscription. My Surveying Direct is an authorized Emlid dealer and ships the Reach RS3 direct from the manufacturer. We take purchase orders from universities, colleges and government agencies. Call +1 888 850 6533, Monday to Friday, 9 a.m. to 5 p.m. Mountain Time, and we will confirm exactly what your order includes before you buy.