Emlid Reach RS4 All-band RTK GNSS receiver. Ultimate precision, even in the most challenging conditions.

The Reach RS4 supports tracking across all major satellite constellations and frequency bands; including the advanced L5 and L6 signals; which offer enhanced resistance to multipath effects and interference. With 672 tracking channels; it can monitor over 40 satellites simultaneously; delivering consistent performance and centimeter-level accuracy.

7mm + 1 ppm in RTK

L1/L2/L5/L6

GPS; GLONASS; Galileo; BeiDou; QZSS; NavIC

672 channels

Fix in less than 5 seconds

The Reach RS4 maintains high accuracy even at steep tilt angles—achieving 18 mm precision at a 30° tilt. Its tilt compensation activates with just a few movements and remains stable throughout the survey; eliminating the need for recalibration and saving valuable time in the field.

Factory-calibrated

Faster initialization

Immune to interference

No angle limit

Quick release mount

Engineered specifically for tilt compensation; this mount eliminates backlash and ensures a secure; stable connection between the receiver and the survey pole. Even minimal wobble can affect accuracy during tilted measurements; making a firm attachment essential. The quick-release system enables fast; dependable setup; maximizing precision and efficiency in the field.

NTRIP

Dual-band radio

UHF 450 MHz

LoRa 915 MHz

The Reach RS4 supports RTK positioning via VRS or single-baseline CORS networks using the RTCM3 format. For added flexibility; it can also connect to another GNSS receiver as an NTRIP base through Emlid NTRIP Caster; enabling seamless integration into various surveying workflows.

Transmit and receive

Up to 2W ( may require a license² )

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