
Chapter 4 - Operation90
Curved A-B Guidance
Curved A-B Guidance provides guidance along curved lines based on an initial
A-Breferenceline.TherststepistoestablishtheinitialA-Bguideline.Thisinitial
baseline is used to calculate all other guidelines.
Mark A
To markthe initial PointA, drive along the rst swath path. Typically this is the
chosencurveoftheeld.Whilethevehicleismovingalongtheinitialswath,the
lightbar will display “MARK A”. The message will be displayed until Mark A is es-
tablished. To establish Mark A, press the Mark A softkey. Once pressed, the Mark
A softkey will automatically change to the Mark B softkey. The lightbar will display
“MARK B”.
Mark B
To establish Point B, press the Mark B softkey.The initial swath baseline has been
established.Thelightbarwillbegindisplayingtheuser-denedmessagesselected
during the setup process. A new A-B line can be created by pressing the New
Guideline softkey and repeating the process.
Figure 4-17: Curved A-B Line
Mark A softkey
Mark B softkey
New Guideline
softkey
established A-B line
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