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CenterLine 220 is a versatile and simple GPS guidance system for any field operation. It is a compact, economical solution for growers interested in lightbar guidance42a1.


November 20, 2007
By Top Crop Manager

CenterLine 220 is a versatile and simple GPS guidance system for any field operation. It is a compact, economical solution for growers interested in lightbar guidance.

CenterLine 220 features two modes of operation — straight-line (parallel) and curved AB. The unit's large graphical display clearly shows off-track direction and distance along with swath number, ground speed, selected guidance mode and whether a return point has been stored. An alternate map page shows a bird's-eye view of the vehicle position and heading in relation to the desired path.

In addition, CenterLine 220 is compact and designed for easy portability from vehicle to vehicle. Operational as soon as it is connected to a power source, CenterLine 220 is easy to use and set up is accomplished in just a few seconds.

The CenterLine 220 features a high quality internal WAAS compatible GPS receiver, with 5Hz position update, in a durable housing with a sealed rubber keypad. A small external GPS antenna connects to the unit and is mounted on the vehicle roof. Additionally, the unit provides a GPS-derived vehicle speed as a radar compatible ground speed signal for use with other control systems.

Mid-Tech's Tilt Compensation Module detects when the vehicle experiences a sideways tilt causing the GPS antenna to be shifted away from the centerline of the vehicle and a position error to result. The module corrects the position for more accurate guidance.

The Tilt Compensation Module features three diagnostic LEDs, indicating the status of the module; its power status, operating status and the status of incoming GPS data. The sensor has an accuracy rate of ±1.0 degree. It is compatible with CenterLine, Swath XL and GuideLine guidance systems as well as the Legacy 6000 precision farming system.


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