The parallel swathing option for the Trimble AgGPS 132 or 124 receiver is a tool that reduces operator fatigue, sets you free from the limitations of foam markers, and becomes the heart of your precision farming operation. Use an AgGPS 132 or 124  with the parallel swathing option to drive straight rows or contours in any visibility condition, day or night, dust or fog, wind or calm. Increase your effective swath width and reduce fuel, chemical, fertilizer, and other input material expenses. Cover more field in less time with less environmental impact. Extend hours in operations like field preparation, seeding, and fertilizer or chemical application. You can even calculate field area on the fly. Trimble makes parallel swathing easy. Enter the width of your applicator. In the field, mark the beginning and end of your first swath. On the next and all remaining swaths, the lightbar indicates how far left or right your location is to the desired path. Use the lightbar to help steer on-line. When you turn at the end of a row, the parallel swathing option automatically begins guidance down the next swath. Leave the field in mid swath and the pause/resume function guides you back to the Location- last worked and lets you begin swathing as before. Depending upon your needs, closed circuit, open circuit, and end-of-field headland areas can be set.

While providing parallel guidance, the AgGPS 132 or 124 receiver simultaneously outputs accurate position information in NMEA 0183 format to precision farming devices, including yield monitors, variable rate planters, application controllers and portable field computers. To ensure compatibility the NMEA data rate is configurable. Accurate position information is derived with the AgGPS 132's Choice technology. This technology is the combination of a high- performance GPS receiver, a beacon differential receiver and a satellite differential receiver all in the same housing. The AgGPS 132 receiver provides sub-meter differential positioning and 0.1 mile per hour (0.16kph) velocity accuracy on almost any farm in the world without additional hardware costs. GPS positions are computed using robust differential processing techniques, allowing operation to begin a few seconds after you switch on your machine. The beacon differential receiver uses the broadcasts from established navigation beacon reference stations around the world. The satellite differential receiver provides multiple vendor support. Its use requires a service subscription.