Candrone
RS4
Reach RS4 brings centimetre-level GNSS positioning to precision surveying, mapping, and geospatial data collection, enabling field professionals to capture accurate positioning data in a compact, rugged receiver.
- Achieve centimetre-level positioning: Support Static, PPK, and RTK workflows with fast convergence and advanced tilt compensation for efficient field measurements.
- Track multiple GNSS constellations: Use 672 tracking channels across GPS, GLONASS, Galileo, BeiDou, QZSS, and NavIC signals.
- Stay connected in the field: LoRa, UHF, LTE, Wi-Fi, Bluetooth 5.1, RS-232, and USB Type-C provide flexible options for corrections, communications, and data transfer.
- Work through demanding conditions: IP68 protection, a -40 to +65 °C operating range, and up to 16 hours of RTK rover runtime support extended field operations.
Overview and Who It's For
Reach RS4 is a high-performance multi-band GNSS receiver designed for precision surveying, mapping, and geospatial data collection. It combines centimetre-level positioning, advanced tilt compensation, multi-constellation GNSS tracking, flexible connectivity, and a rugged field-ready design.
- Surveying professionals: Complete Static, PPK, and RTK positioning workflows with centimetre-level accuracy.
- Mapping teams: Capture precise positioning data with multi-constellation GNSS support and flexible data logging.
- Geospatial professionals: Collect and export positioning data across supported formats and correction protocols.
Key Specs
| Static Accuracy | Horizontal 4 mm + 0.5 ppm / Vertical 8 mm + 1 ppm |
| PPK Accuracy | Horizontal 5 mm + 0.5 ppm / Vertical 10 mm + 1 ppm |
| RTK Accuracy | Horizontal 7 mm + 1 ppm / Vertical 14 mm + 1 ppm |
| Convergence Time | ~5 seconds |
| Tilt Compensation | RTK + 2 mm + 0.3 mm/° |
| GNSS Constellations | GPS, GLONASS, Galileo, BeiDou, QZSS, and NavIC |
| Tracking Channels | 672 |
| Update Rate | Up to 10 Hz |
| LoRa Radio | 868/915 MHz with up to 8 km range |
| UHF Radio | 410–470 MHz supporting TRIMTALK 450S protocol |
| Wireless Connectivity | LTE, Wi-Fi (802.11a/b/g/n), Bluetooth 5.1 |
| Ports | RS-232 and USB Type-C |
| Correction Protocols | NTRIP and RTCM3 |
| Position Output | NMEA, LLH/XYZ |
| Data Logging | RINEX, NMEA, LLH/XYZ, UBX |
| Internal Storage | 16 GB |
| Ingress Protection | IP68 |
| Operating Temperature | -40 to +65 °C |
| Dimensions | 128.6 × 128.6 × 99.3 mm |
| Weight | 920 g |
| RTK Rover Runtime | Up to 16 hours with tilt compensation |
| Data Logging Runtime | Up to 22 hours |
| Battery | Rechargeable 5000 mAh Li-Ion battery |
| Charging | USB Type-C (Power Delivery) |
FAQs
What positioning methods does Reach RS4 support?
Reach RS4 supports Static, PPK, and RTK positioning, with RTK horizontal accuracy of 7 mm + 1 ppm and vertical accuracy of 14 mm + 1 ppm.
Does Reach RS4 support tilt compensation?
Yes. Reach RS4 provides advanced tilt compensation specified at RTK + 2 mm + 0.3 mm/°.
Which GNSS constellations does Reach RS4 track?
It tracks GPS, GLONASS, Galileo, BeiDou, QZSS, and NavIC signals across 672 tracking channels.
What correction options does Reach RS4 support?
Reach RS4 supports NTRIP and RTCM3 correction protocols, along with LoRa and UHF radio connectivity.
How long does the Reach RS4 battery last?
Runtime is up to 16 hours when operating as an RTK rover with tilt compensation and up to 22 hours for data logging.
Warranty and Returns
This product is covered under the manufacturer's limited warranty. Candrone's standard return and exchange policy applies.
View Candrone's Warranty and Returns Policy
For warranty claims or support, contact our team at 1-888-461-5742 or visit our Contact page.
Get a Quote
Got a competing quote you want to beat or looking for a customized package. We'll put together an itemized quote for your review.
Schedule a Demo
See the RS4 in action virtually or on-site. Contact our team to setup a demo.
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