Honeywell GNS-XLS Operator's Manual page 59

NOTE: Entering 99 in this field will eliminate any previously entered
value and no CHECK QUALITY message will appear.
CURRENT MODE: Indicates the current mode of VPU navigation.
The messages that can appear under it:
• NO MEASUREMENTS indicates that VPU is not receiving valid
data for navigation.
• VOR/DME indicates that distance and bearing (rho/theta) informa-
tion is used to generate VPU position.
• DME/DME indicates distance (rho/rho) data is received and used
to generate VPU position.
• BAD GEOMETRY indicates that station geometry is inadequate for
navigation.
NAV 1 - CONFLICT or NAV 2 - CONFLICT:
The VPU is not using a manually or keyboard tuned station because
of a possible station frequency conflict within the aircraft's current
line-of-sight. (Figure
VPU SUBSECTION 3/4 (Page 3 of 4)
Pressing the NXT Key again will display the third VPU SUBSECTION
Page and the following can be observed.
VPU Sensor With Single Channel DME Inputs (Figure 2-33)
NAV 1 and NAV 2:
The station identifier and fre-
quency being used for navi-
gation.
RNG:
The range in nautical miles
and tenths from aircraft pre-
sent position to the DME sta-
tion.
BRG:
Bearing in whole degrees from aircraft present position to the VOR.
Rev. 5
Sep/97
2-32)
VPU
NAV 1
NAV 2
GNS-X Flight Management System
LS
Page Display Definitions
(Figure 2-32)
SUBSECTION
VPU STATIONS
PRX
RNG
BRG
UIM
RNG
BRG
Figure 2-33
3/4
113.60
51.2
304
114.00
34.7
252
2-27