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Enqineering Mode
Operator's Manual
Version 1.5
Receiver status = 38: 4: The displayed value changes
10
the
channel time ofthe receiver. All receiver channels with a
mode of 3 or 4 should have the same channel timc. The
channel time is a clock that is recovered from the satellite
and used to make navigation range measurements.
Columns 4 & 8: represents the current oscillator offset for the
given receiver channel. A wide range of values are possible
and normal. These values will also change as you and the
satellites move to maintain a lock on the center frequency of
the satellite carrier.
Core Version: represents the GPS CDU baseband firmware version.
This is not the same as the information given inA UX7, the naviga-
tion firmware version.
Oscillator: represents the current oscillator offset value. This value is
present for Leica engineering use only. It has a wide range ofvaria-
tion possibilities. Refer to the GPS8 - Oscillator Offset Tempera-
ture Curve Fit section in this manual.
GPS Offset: is the reported difference in seconds between GPS time
and UTC time, as reported by the satellite. A positive time indicates
GPS time is ahead ofUTC time.
GPS Week: is the reported GPS week from the satellite. You may have
heard about a possible GPS week rollover problem within the GPS
industry occuring on August 21, 1999 or on January I, 2000. The
receiver software is designed to correctly adjust to the GPS week
rollover and millennium rollover.
Position: is the current calculated position in decimal degrees. A posi-
tive latitude is North. A positive longitude is East. The value on the
far right is the ellipsoid height. The ellipsoid height normally varies
quite a bit from altitude, which is usually expressed in reference to
Mean Sea Level.
Pas Mode: is the current mode of your position solution.
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