BendixKing KXP 756 - Manual (Page 15)

14
DME/TACAN
KDI 573/574 Display
NM KT MIN
1
OFF
N 1
HLD
N 2
RANGE GROUND SPEED TIME TO STATION
CHANNELING SOURCE
FUNCTION SWITCH
ı
NM KT MIN
1
RANGE GROUND SPEED TIME TO STATION
CHANNELING SOURCE
ı
92.4 180 31
92.4 180 31
KDI 572 Display
DME
KDI 572/573/574 When
Used With the KDM
706/706A
The effective range of a DME
depends on many factors: most impor-
tant being line of sight limitations
determined by the altitude of the
aircraft (see
Table 1 ), weather, the
location and altitude of the ground
transmitter and transmitter power
output. The degree of maintenance of
the KDM 706/706A DME and
maintenance of the ground station also
contribute to a DME's effective range
capability. Usually line-of-sight
limitations will prevent an aircraft on
the ground from receiving and locking
onto a VORTAC station.
The DME system electronically
converts elapsed time-to-distance by
measuring the length of time between
the transmission of a radio signal to a
pre-selected VORTAC station and
reception of the reply signal. This
distance is then indicated in nautical
miles on the DME range/ground
speed/time-to-station indicator. This
distance is measured on a slant from
the aircraft to the ground and is
commonly referred to as slant-range
distance. Slant-range distance should
not be confused with actual ground
distance. The difference between
slant-range distance and ground
distance is smallest at low altitude and
long range. These distances may
differ considerably when in close
proximity to a VORTAC facility.
However, if the range is three times