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Tractor GPS field guidance: parallel driving, AB lines, RTK, section control
By Irfan Rosli
News editor
ColDonAgro runs on an Android phone and gives a tractor driver steering guidance for working a field in parallel passes. It shows the vehicle's position on screen against the lines of the field, so the driver can keep each pass the same distance from the last.
It suits farm operators who already own a GPS receiver or antenna and want to add guidance to a tractor. The listing describes it as a free navigation lightbar that also covers sprayer section control, yield mapping and autosteer.
The app shows position from whichever receiver it is connected to. The phone's built-in GPS gives 2 to 5 m accuracy, which the listing presents as enough to try the app and measure a field.
For field work, the app connects to an external receiver over Bluetooth or UDP. With RTK the listing gives accuracy from 0.5 m down to 1 cm, at an update rate of up to 10 Hz. It works with any external GPS antenna, including third-party models.
The core feature is parallel driving on straight AB lines and on AB curves, where the driver marks two points and the app lays out passes from them. The lightbar shows cross-track error, meaning how far the tractor sits from the line, and gives a steering hint to bring it back.
These guidance tools are part of the free basic set, so a driver can use them with any antenna.
The app offers a 3D mode that works without maps and a satellite map mode. Night mode is listed for work after dark.
The driver can mark obstacles in the field, so they are recorded on the working area for later passes.
The listing names sprayer section control, yield mapping and autosteer as part of the app's farm navigation features. These sit under the advanced set, which is unlocked by the Novator, Novator Sensor and Novator Pro RTK antennas.
Those antennas carry the license key in their own firmware, so the unlock needs no subscription and no separate account. Other external antennas run only the basic guidance features.
The build we hold is ColDonAgro - Tractor GPS Guide 6.0.0 (APKS split bundle) for Android 10 and up.
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