TeeJet RX 400p User Manual

Page 63

RX 400p

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Time 11:32:45.2

This item displays the current UTC Time. If a
local offset has been specified, the time will
reflect your local time instead. See Section
5.15.2 for further details on setting a UTC offset.
This information is parsed from the GPZDA
NMEA message.

Age 5.6 s

This item displays the current DGPS age of
corrections in seconds. This information is
parsed from the GPGGA NMEA message.

SV Count 07

This item displays the current number of
satellites being used by the GPS receiver in
computing its position. If this value is 4 or
greater, then the computed position is 3D, and
includes a valid height solution. If less than four,
then the solution is 2D, holding the height
parameter constant at either 0, or its last
measured value. This information is parsed from
the GPGGA NMEA message

HDOP 1.3

This menu item displays the Horizontal Dilution
of Precision (HDOP), which describes the quality
of the satellite geometry. A lower value is better
than a higher number. An HDOP of less than 1.0
indicates strong satellite geometry, which
promotes good positioning accuracy. A value of
over 3.0 indicates weaker satellite geometry and
accuracy may become affected. This information
is parsed from the GPGGA NMEA message.