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Application

RTK GNSS for Precision Agriculture

RTK GNSS for precision agriculture gives auto-steering, implement control, spraying drones and field robots centimetre positioning and true heading. Eview supplies the HB6 Pro and HB56H dual-antenna receivers, the HBEV11 smart antenna, the HB62 farm base station and rugged EV288 and EV226 antennas, powered by Septentrio modules with AIM+ anti-jamming.

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0.6 cm
RTK accuracy + 0.5 ppm
0.15°
Dual-antenna heading at 1 m
100 Hz
Raw measurements (mosaic-H)
IP67
HB62 base and EV288 antenna
What farms need

What precision agriculture needs from GNSS

Pass-to-pass accuracy
Auto-steering and controlled traffic farming need repeatable rows season after season. RTK accuracy of 0.6 cm + 0.5 ppm with about 7 s initialisation keeps passes straight and overlaps small. See RTK positioning.
Heading and attitude
Steering controllers need heading from standstill and must correct for slope. The HB6 Pro gives 0.15° heading and 0.25° pitch and roll at 1 m antenna spacing. See moving-base attitude.
Rugged installation
Tractors and sprayers bring vibration, dust, rain and fertiliser. The HB56H uses a flange-mount metal housing, and the EV288 antenna is IP67 and tested for vibration and salt spray.
Your own farm base
Where mobile coverage or CORS is limited, a farm base gives independent corrections. The HB62 is IP67, logs to 64 GB, runs on 9–36 V and serves NTRIP over Ethernet. See base receivers.
Tracking near trees and sheds
Hedgerows, tree lines and farm buildings cause multipath and short outages. APME+ and LOCK+ help hold the fix, and IONO+ protects RTK during ionospheric scintillation. See IONO+ after sunset.
Resistance to interference
Radios, LTE modems and electrical equipment in and around the cab can disturb GNSS. Septentrio AIM+ detects and suppresses interference to keep RTK available. See anti-jamming receivers.
Recommended products

Eview receivers, antennas and bases for agriculture

ProductBest forKey specs
HB6 ProAuto-steering retrofits and spraying dronesmosaic-H dual antenna, 0.15° heading / 0.25° pitch-roll at 1 m, 100 Hz measurements, 45 g
HB56HTractors, sprayers and implementsmosaic-H, flange-mount metal housing, dual-antenna heading, SD logging, RTK and heading at 20 Hz
HBEV11 smart antennaField robots and portable rover or base set-upsReceiver plus full-band antenna, mosaic-G5, base or rover, one M12 cable, Galileo HAS
HB62 basePermanent farm RTK basemosaic-X5, NTRIP, Ethernet, 64 GB logging, IP67, 9–36 V
EV288 antennaRoof-mounted antenna on tractors and basesFull-band (L5, E6, L-band), 5/8-inch mount, IP67, vibration and salt-spray tested
EV226 antennaQuick fitting on vehicles and robotsMagnetic mount, 3 m cable, IP67

All products are quote-based. For a complete datasheet, email sales@gnss-solutions.com. Browse all box receivers, smart antennas, rugged base receivers and GNSS antennas.

Use cases

Precision agriculture applications

Auto-steering
RTK auto-steering on tractors, including retrofit kits for older machines, cuts overlap and operator fatigue. See auto-steer retrofit options.
Implement control
Dual-antenna heading plus pitch and roll for implement guidance, section control and variable-rate application on slopes and contours.
Spraying drones
Accurate swaths and heading for crop-spraying and spreading drones working close to the crop. See drones and UAVs.
Field robots
Weeding, scouting and harvesting robots follow crop rows with centimetre RTK and dual-antenna heading. See robotics.
Farm base station
One HB62 base on a barn roof serves NTRIP corrections to tractors, drones and robots across the whole farm.
Field mapping
Boundary mapping, drainage planning and soil sampling with repeatable positions from one season to the next. See survey and GIS.
Integration

Easy to integrate

Steering controllers
NMEA and Septentrio SBF output over serial interfaces for steering controllers and terminals, with heading available from standstill. See dual-antenna heading.
Corrections
RTCM v3 from an HB62 or HBEV11 base, a CORS network or an NTRIP caster. See NTRIP and RTCM.
Logging and firmware
SD logging on the HB56H and 64 GB on the HB62 for raw data and RINEX. Firmware and manuals are on firmware downloads.
FAQ

Agriculture GNSS: frequently asked questions

What accuracy do I need for auto-steering?

Row crops, bed forming and controlled traffic farming need RTK, which gives 0.6 cm + 0.5 ppm horizontal accuracy with Eview receivers. Lower-accuracy corrections may be enough for broadacre spraying or spreading, but RTK keeps passes repeatable from one season to the next, which is what most auto-steering users want.

Why use dual-antenna heading on a tractor?

A single antenna only gives heading once the tractor moves, and it reacts slowly at low speed. Dual-antenna receivers such as the HB6 Pro and HB56H give 0.15° heading at 1 m spacing from standstill, which helps line acquisition at the start of a pass and implement control on slopes.

Should a farm run its own RTK base station?

If CORS or NTRIP coverage is patchy, or mobile data is unreliable in the fields, a farm base gives independent corrections. The HB62 is a rugged IP67 base with Ethernet, NTRIP and 64 GB logging. For a portable set-up, the HBEV11 smart antenna can work as a base on a tripod.

Can I retrofit RTK to an older tractor?

Yes. Many farmers add an RTK receiver and steering kit to existing machines. A flange-mount receiver such as the HB56H, two EV288 antennas on the cab roof and RTCM v3 corrections form the GNSS side of a retrofit. See our auto-steer retrofit guide for options.

Do Eview receivers work on spraying drones?

Yes. The HB6 Pro weighs 45 g and gives dual-antenna heading plus pitch and roll, which suits spraying drones. Receivers connect to ArduPilot and PX4 over UART and accept RTCM v3 corrections. Septentrio AIM+ helps keep RTK available near radio links and power lines.

Related reading

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