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Haicom HI-204E User Manual

Page 12

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As soon as GPS signal is acquired and tracked, the

HI-204E will transmit valid navigation infor mation

through its ser ial interface. The navigation data

contains following infor mation:

• Receiver position in latitude, longitude, and altitude

• Receiver velocity

• Time

• DOP error-magnification factor

• GPS signal tracking status

The HI-204E will perform 3D navigation when four or more

satellites are tracked. When three or fewer satellites are

tracked, altitude-hold is enabled using the last computed

altitude and 2D navigation mode is entered.

With signal blockage or rising and setting of the satellites,

where a change in satellite constellation used for position fix

occurred, large position error may result. The HI-204E

incorporates a proprietary algorithm to compensate the

effect of satellite constellation change, and maintains an

accurate smooth estimate of the receiver position, velocity,

and heading.

This manual is related to the following products: