RT2502 designed to measure true heading

Oxford Technical Solutions has introduced the OxTS RT2502, which can measure heading, the angle to true north.

This compact, single-box product combines gyros, accelerometers and two precision GPS receivers, giving a fast 250Hz true heading measurement.

Unlike GPS compasses, the RT2502 is based on an inertial navigation system (INS).

It can output heading in difficult GPS environments, lock on to GPS heading by tight coupling to the inertial data and even make precise measurements of roll and pitch.

The RT2502 is suitable for rough terrain work, such as that carried out by military vehicles.

It is claimed to cost less than many L1/L2 GPS compasses.

It is said to be able to lock on faster and more reliably than dual-frequency GPS compasses because of the tight coupling with the INS.

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