Technology in Crop Production

The Low Latency positioning mode delivers 20 Hz position fixes with around 20 millisecond latency with a precision that is only slightly less accurate than Synchronized RTK positioning. Based upon the predictability of the reference station phase data.

http://www.scribd.com/doc/91055018/19/Fast-Update-Synchronized-RTK-5-or-10-Hz

The following description also applies to AgGPS542.

A large part of the solution latency in Synchronized RTK processing is due to the data formatting and transmission of the base station data to the rover (see Figure2.1). The BD950 receiver includes a Low Latency positioning mode for applications that demand centimeter-level accuracy almost instantaneously. The Low Latency positioning mode delivers 20Hz position fixes with around 20msec latency with a precision that is only slightly less accurate than Synchronized RTK positioning.