|
SF1 |
SF2* |
SF3 |
Radio RTK |
Mobile RTK |
Pass-to-pass accuracy better than +/- 15 cm (5.9 in.) required? |
No |
Yes |
Yes |
Yes |
Yes |
Horizontal pass-to-pass accuracy (15 minutes, 95 percent confidence) |
+/- 15 cm (5.9 in.) |
+/- 5 cm (2.0 in.) |
+/- 3 cm (1.2 in.) |
+/- 2.5 cm (1.0 in.) |
+/- 2.5 cm (1.0 in.) |
Possible wait time of up to 30 minutes after startup or extended periods of shading for full accuracy/ repeatability |
No |
--- |
Yes |
No |
No |
Pull-in time |
~ 10 min |
< 90 min |
< 30 min |
< 1 min |
< 1 min |
Long term (multiple season) repeatability required for guidance lines, coverage or boundaries? |
No |
No |
No |
Yes |
Yes |
Repeatability calculation |
None |
None |
+/- 3 cm (1.2 in.) in-season |
+/- 2.5 cm (1.0 in.) long term |
+/- 2.5 cm (1.0 in.) long term |
Vertical accuracy important? |
No |
No |
No |
Yes |
Yes |
Delivery method |
Satellite |
Satellite |
Satellite |
Radio |
Cellular |
Operates in areas challenging for radio communication? |
No |
No |
No |
No |
Yes |
Activations required |
None |
SF2 ready |
SF3 ready |
SF3 ready and RTK ready |
SF3 ready and RTK ready |
Subscription required |
None |
SF2 subscription |
SF3 subscription |
Dealer subscription or none (with own base station) |
John Deere Mobile RTK subscription and JDLink™ subscription |
Additional hardware required |
None |
None |
None |
RTK Radio |
Modular Telematics Gateway (MTG) |
Applications this differential correction is best suited for |
- Tillage
- Broad-acre chemical/fertilizer application (broadcast fertilizer spreading and spraying)
- Price-sensitive customers
|
|
- Multiple operations (planting, fertilizer side-dressing, post-emerge spraying, and harvest) using the same guidance lines for one entire season
- Strip till
- Controlled traffic
- Repeatable Section Control performance for an entire season
- Customers in areas where RTK networks do not exist
- Customers who are price-sensitive and don't invest in RTK infrastructure
|
- AutoTrac in flat terrain or areas without thick tree cover
- iGrade (requires local RTK base station)
- Boundary mapping for long-term Section Control performance
- Repeatable guidance lines over multiple years (drip tape irrigation, sugar cane, strip till, and controlled traffic)
|
- AutoTrac in hills and areas with thick tree cover
- Customers with JDLink and John Deere Mobile RTK Signal coverage
- Boundary mapping for long-term Section Control performance
- Repeatable guidance lines over multiple years (drip tape irrigation, sugar cane, strip till, and controlled traffic)
|