When it comes to large agricultural, small agriculture and turf customers, the StarFire 7500 receiver is precise – allowing for repeatable placement of machines, fertilizer, seed, and herbicides.

• 100 percent increase in satellite constellations used by the receiver*
• 17 percent greater accuracy*
• Long-term repeatability (where applicable) vs. 9 months*
• 73 percent reduction in pull-in time*
• Universal offering that’s compatible with older and competitive equipment
• Interchangeable: tillage, planting, spraying, and harvesting

*All comparisons made to the StarFire 6000 with SF3

The StarFire 7500 Receiver offers a new correction level with accuracy like RTK Radio. The SF-RTK correction level provides 2.5-cm (1-in.) horizontal accuracy without the need for additional hardware. This is an improvement of 17 percent from the previous generation of StarFire receiver with SF3. The SF-RTK signal uses two additional satellite constellations (BeiDou and Galileo) as well as both GPS (United States) and GLONASS (Russia) satellites.

The StarFire 7500 and StarFire 7500 Integrated Receivers simultaneously track correction signals from up to three StarFire correction satellites. The receiver tracks and uses correction signals from all StarFire satellites in view and intelligently chooses one that delivers the best performance. When the receiver moves into an area where the primary StarFire signal is blocked, such as near a tree line, the receiver automatically switches to an alternate StarFire signal (if visible) to help maintain accuracy and performance.

NOTE: Compare this to the previous StarFire 3000 Receiver that was only capable of tracking one StarFire signal at a time and could wait up to 4 minutes to initiate the switch to the next available signal.

Repeatability defines how accurately the receiver calculates its position over a relatively long-term window.

NOTE: SF-RTK uses satellite corrections only and does not require the use of an RTK Radio. RTK Radio may still be required in the following scenarios:

• iGrade™ water management
• Areas with thick tree lines or obstacles that could cause shading of the receiver
• Long-term repeatability in countries we cannot guarantee SF-RTK repeatability (see list under SF-RTK repeatability)
• Land leveling

John Deere’s latest satellite correction offering provides customers with simplified access to Radio RTK like accuracy and repeatability. Prior to SF-RTK, customers had to purchase additional hardware, RTK Ready or Permanent Licenses, and in most use cases work with a local John Deere dealer to access their base station network to use Radio RTK.

SF-RTK eliminates that complexity through offering the same level of accuracy and repeatability from the sky! Plus, with SF-RTK there’s no need to switch base stations when moving between fields like seen with Radio RTK.

What does SF-RTK do?

The StarFire 7500 utilizes four GNSS satellite constellations, which are corrected through John Deere’s StarFire network to provide sub-inch horizontal accuracy. This provides customer’s our highest accuracy level, along with long-term repeatability (where applicable) to enable advanced guidance features and the confidence that guidance lines and boundaries won't shift from year to year.

Why should customers use SF-RTK?

Customers are continually looking for simplified solutions that deliver the value needed for their operation. SF-RTK offers a lower cost of entry for customers compared to Radio RTK, making this solution an easy decision for customers looking to use a high precision correction signal. Why pay for additional hardware, permanent licenses and base station access fees when SF-RTK only requires a yearly license to operate on your StarFire 7000 or StarFire 7500 receiver.

SF-RTK vs. Radio RTK vs. Mobile RTK (on a StarFire 7500)

Requirements to use SF-RTK

1. StarFire 7500 Receiver
2. SF-RTK 1-year license

Requirements to use Radio RTK

1. StarFire 7500 Receiver
2. RTK Radio
3. RTK Permanent License
4. Access to dealer base station network or additional StarFire receiver and radio required for each base station if producer owned
5. Dealer fee for accessing RTK Network

Requirements to use Mobile RTK (through 4G LTE Modem). Availability limited to select countries.

1. StarFire 7500 Receiver
2. John Deere Mobile RTK Modem (4G LTE)
3. RTK Permanent License
4. Bring your own SIM card with data plan (fee to access local cellular network)
5. RTK Correction Data Provider (fee sometimes required)
   1. Needs to provide data corrections in data format of RTCM 2.3, 3.0 or CMR

StarFire 7500 and StarFire 7500 Integrated Receiver horizontal pass-to-pass accuracy:

• SF1: +/- 15 cm (5.9 in.)
• SF-RTK: +/- 2.5 cm (1 in.)
• RTK Radio: +/- 2.5 cm (1 in.)

Many factors contribute to the time it takes to achieve desired accuracy from the StarFire™ receiver. Global Navigation Satellite System (GNSS) signal quality can be a contributor, especially when multipath errors occur. Multipath errors occur when satellite signals reflect off nearby surfaces. When the receiver antenna captures a multipath signal, it takes time for the receiver to filter out actual GNSS signal directly from the satellite versus reflected signal from a nearby object. This contributes to the time it takes to achieve desired accuracy.

The choke plate hardware in the StarFire 7500 Receiver more accurately directs GNSS signals into the antenna. With the addition of this choke plate, there is a 73 percent reduction in the time it takes to acquire an SF-RTK correction signal from previous generations of StarFire receivers. This means you have more time to be productive and get the job done quicker.

The StarFire 7500 and StarFire 7500 Integrated Receiver use an integrated terrain compensation module (TCM) to adjust the calculated machine position based on the terrain on which it is operating. The TCM adjusts for roll, pitch, and yaw motion to improve receiver and AutoTrac™ system performance when operating in challenging conditions such as hilly ground.

• TCM ensures accurate Section Control and AutoTrac guidance performance.
• TCM provides input data such as pitch to systems like the ActiveYield™ monitoring system on combines.
• The StarFire 7500 Integrated Receiver comes factory calibrated, ensuring the highest possible performance and precision.

Advanced TCM Calibration

As accuracy and repeatability continue to be more important to get to plant-by-plant accuracy, the systems in place today must evolve to enable this capability. Like the StarFire 6000 and StarFire 7000, the StarFire 7500 offers an Advanced TCM Calibration feature.

Benefits:

• Removes the guesswork out of positioning a machine and implement in the exact same spot when turning around.
• Removes the need for a level surface.
• Adds higher precision to the TCM calibration by gathering and comparing multiple points.
• Calibrates both the machine and implement receiver TCM at the same time.

How it works:

• Roughly 100.6 m (330 ft) of space is required for the calibration.
• During the calibration, speed should not exceed 6.4 km/h (4 mph).
• If an error occurs during the calibration, the operator is notified.

• Select Advanced TCM Calibration from the device list in the display.
• Follow the on-screen prompts to set up a guidance line.
• Drive the guidance line using AutoTrac automated steering from point A to point B.
• Manually turn and resume AutoTrac steering, driving the guidance line back to point A.

This completes the calibration.

Compatibility:

• StarFire 7500 Receiver or StarFire 7500 Integrated Receiver
• StarFire 7000 Receiver or StarFire 7000 Integrated Receiver
• StarFire 6000 Receiver or StarFire 6000 Integrated Receiver with software update 20-2 or later
• G5 or G5Plus CommandCenter™ Displays G5 or G5Plus Universal Displays
• Gen 4 4600 CommandCenter Display with software update 20-3 or later
• Gen 4 4640 Universal Display with software update 20-3 or later Must have an AutoTrac activation

With Ethernet connectivity on the StarFire 7500 Integrated Receiver, you can save up to 60 minutes per year while performing over-the-air software updates to keep your technology in sync with the latest features