Stability and repeatability in the crop

Signal Corrections Line

Uncorrected, satellite-based or with an RTK base: pass-to-pass accuracy depends on the combination of antenna and signal correction. The right level is the one your operation calls for — see what each one delivers.

How it works

From satellite to pass

01 / 04Constellations

Four satellite systems — GPS, GLONASS, Galileo and BeiDou — orbit the Earth at about 20,000 km. Agres antennas receive all four at the same time.

0satellites in view of your field right now

03 / 04Correction

The atmosphere, clocks and orbits leave an error in the position. The correction — by satellite or from an RTK base — measures that error and removes it. Pick a level and watch the error shrink.

30–40 cmpass-to-passANR 10 · 15 cm on the ANR 20 and ANR 30

04 / 04Passes

With autosteer, passes come out straight. The signal error shows up when the tractor returns to the line after a while, such as after refueling: the new passes may be shifted, leaving overlap or a gap at the seam. Switch levels and compare.

30–40 cmpass-to-passANR 10 · 15 cm on the ANR 20 and ANR 30

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No correction

pass-to-pass

30–40 cmANR 10

15 cmANR 20 and ANR 30

The antenna computes its position from the satellites alone, with no correction signal. Suited to guidance and applications with wider pass-to-pass tolerance.

ANR 10 (L1+L2): 30–40 cm pass-to-pass
ANR 20 and ANR 30: 15 cm pass-to-pass
1.50 m absolute accuracy
No subscription

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Nave

pass-to-pass

15 cmANR 10 with L5

L-band satellite correction, by subscription, with no local base.

ANR 10 with L5: 15 cm pass-to-pass
ANR 10: 40 cm absolute accuracy
ANR 30: 2.5 cm absolute accuracy
By subscription

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Nave PRO

pass-to-pass

2.5 cmANR 10

The most accurate satellite correction in the Nave line, for operations that allow no drift.

ANR 10: 2.5 cm pass-to-pass
2.5 cm absolute accuracy
No local base
By subscription

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P1 and P2 — ANR Ultra

pass-to-pass

10 cmP1

2 cmP2

The satellite corrections of the ANR Ultra and Ultra Plus: P1 is free, and P2 takes accuracy to the centimeter level.

P1 (free): 10 cm pass-to-pass
P1: 40 cm absolute accuracy
P2: 2 cm pass-to-pass
P2: 3 cm absolute accuracy

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RTK

pass-to-pass

1 cmANR 10, ANR 30 and Ultra Plus

2 cmANR Ultra

Correction from an RTK base, radio or NTRIP, for continuous centimeter-level accuracy.

1 cm: ANR 10 (Nave RTK), ANR 30 and ANR Ultra Plus
2 cm: ANR Ultra
ANR 30: RTK over 4G, radio and NTRIP
Ultra Plus: RTK base, UHF radio and NTRIP
ANR 20: NTRIP correction

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SBAS and Galileo HAS

pass-to-pass

12 cmGalileo HAS · ANR 30

Corrections available in Europe only.

SBAS: 60 cm absolute accuracy (ANR 10 and ANR 30)
Galileo HAS: 12 cm pass-to-pass, measured (ANR 30)

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Technical specifications

The accuracy of each correction

The accuracy of each correction
	No correction	Nave	Nave PRO	P1	P2	RTK
Pass-to-pass accuracy	30–40 cm (ANR 10)15 cm (ANR 20 and ANR 30)	15 cm (ANR 10 with L5)	2.5 cm (ANR 10)	10 cm	2 cm	1 cm2 cm (ANR Ultra)
Absolute accuracy	1.50 m	40 cm (ANR 10)2.5 cm (ANR 30)	2.5 cm (ANR 10)	40 cm	3 cm	1 cm2 cm (ANR Ultra)
How it arrives	GNSS satellites only	Satellite (L-band), by subscription	Satellite (L-band), by subscription	Satellite, free	Satellite	RTK base, radio or NTRIP
Antennas	ANR 10, ANR 20, ANR 30	ANR 10, ANR 30	ANR 10	ANR Ultra, Ultra Plus	ANR Ultra, Ultra Plus	ANR 10, ANR 30, ANR Ultra, Ultra Plus

Talk to a specialist

Want to improve your operation's accuracy?

Our team can help evaluate accuracy upgrades, move to signal corrections or migrate to RTK, according to your reality in the field.

Request signal correction See suggested kits