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How they work
All the systems receive positioning information from a constellation of satellites. These will usually referred to as:
GPS – The North American Global Positioning System, which provides an uncorrected signal accuracy of about 5m.
GNSS – The Global Navigation Satellite System, which is the International multi-constellation satellite system, which includes GPS, EGNOS, GLONASS, Baidu and Galileo.
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Increasing precision
- Uncorrected, the signals from these systems are unsuitable for use in agriculture and require the addition of a ‘correction signal’, which can be provided by an additional signal from a satellite or a Real-Time Kinematic (RTK) ground-based system which transmits the correction via radio signals or 3G/4G/GPRS mobile phone network.
- Free to use correction signals are provided by the following systems. However, these corrections are still not precise enough for many farming operations.
- WAAS – Wide Area Augmentation System employs a series of ground stations that receive GPS signals and broadcasts a correction signal every second. It is accurate to within 3m.
- EGNOS – The European Geostationary Navigation Overlay Service augments GPS with three satellites, providing users with position accuracy to within 1.5m.
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Choose the accuracy you need
Not all operations in farming require pin-point accuracy. It is however, important, to consider the factors that can effect the precision to when making decisions and to select system to suit your needs.
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Accuracy levels
- Pass to Pass accuracy. This is how precisely each track is spaced apart.
- Repeatable accuracy. How accurately the system will return to an existing path or boundary from the previous season.
FUSE provides a choice of three levels of precision to exactly suit the requirements of a wide range of operations:
- Submetre +/- 20cm – for primary tillage work and basic applications
Correction: Free satellite service, low pass-to-pass accuracy - Decimetre +/- 5cm – accurate drilling, spraying and spreading
Correction: Commercial satellite, low pass-to-pass accuracy - Centimetre +/- 2cm – high accuracy for precise operations, waylines remain in place
Correction: RTK / NTIP network
Select your system
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NovAtel Receivers
NovAtel standard:
- Submetre: EGNOS & WAAS ± 15-30cm pass-to-pass accuracy; ± 150cm repeatable accuracy
NovAtel – expandable correction signals:
- Centimetre: TerraStar-L ± 15cm pass-to-pass accuracy; ± 50 cm repeatable accuracy
- Decimetre: TerraStar-C Pro + - 2cm pass-to-pass accuracy; + - 3cm repeatable accuracy
- Decimeter: RTK ± 2.5cm pass-to-pass accuracy; ± 2.5cm repeatable accuracy
RTK Assist maintains 5cm or less accuracy for up to 20 minutes if the signal is lost of interrupted.
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Trimble Receivers
Trimble standard:
- Submetre: EGNOS & WAAS ± 15-30 cm pass-to-pass accuracy; ± 150 cm repeatable accuracy
Trimble – expandable correction signals:
- Decimetre: RangePoint® RTX ± 15 cm pass-to-pass accuracy; ± 50 cm repeatable accuracy
- Decimetre: CenterPoint® RTX and CenterPoint® RTX Fast ± 2.5 cm pass-to-pass accuracy; ± 1 inch repeatable accuracy
- Decimetre: RTK ± 2.5 cm pass-to-pass accuracy; ± 2.5cm repeatable accuracy
xFILL technology: This provides a back-up to that helps maintain accuracy, up to 2.5cm, if the RTK signal is lost or interupted for up to 20 minutes.
Buy at our core brands dealers
Fuse® smart farming solutions are available through the dealer networks of our core brands Challenger, Fendt, GSI, Massey Ferguson and Valtra. Whenever you buy a product or service featuring the Fuse logo, it ensures open connectivity and application within our core brands’ ranges as well as with other manufacturers’ products.