Esterline CMA-9000 - Dme Navigation; Dme Station Monitor

OPERATOR’S MANUAL
CMA-9000 FLIGHT MANAGEMENT SYSTEM
DME NAVIGATION
The DME/DME navigation mode is selected for use by the FMS when higher priority navigation modes are
unavailable or not adequate for the phase of flight. For additional information refer to Section 1.
DME/DME is used in areas with sufficient DME coverage and for which the appropriate navigation database is
installed. In this mode the FMS automatically tunes the on-board DME equipment acquiring distance from up to
six DME or TACAN ground stations to determine aircraft position.
NOTE: All position changes are filtered to avoid position jumps (when operating in areas of sparse DME
coverage).
DME STATION MONITOR
The DME page displays those stations used by the FMS in DME navigation. A total of six DME stations may be
used to determine the aircraft's position. At least three stations are required to navigate in DME/DME mode.
1. Display the DME STATUS 1/X page via the NAV STATUS INDEX 1/1 page.
2. This page displays the DME stations used by the FMS for DME navigation, the frequencies tuned, and the
slant range distances. Associated with each station is a status that indicates the following:
"REJ" : station not used in determining a position fix (rejected due to bad geometry).
" " : station used for DME navigation.
"N/A" : station not responding to tuning.
1R
2R
3R
4R
5R
DME STATUS 1/1
ID STAT FREQ DIS
YUL 116.30 25.5
NM
IJFK N/A 109.50 NM
YJN REJ 118.00 64.5NM
PLB 118.80 12.5NM
YQA REJ 119.00 39.0NM
YUD 120.25 99.5NM
POSITION
N46
o
43.31 W078
o
46.07
<NAV STATUS DME DESEL>
1L
2L
3L
4L
5L
6L
6R
Page 12-4
August 17, 2010
DRAFT