TM 55-1510-219-MTF
PROCEDURE TROUBLESHOOTING REFERENCE
a.
Mode C switch (transponder control panel) - ON.
b.
Contact ground radar facility and request them to give you
their altitude readout. Ground facility altitude readout must
agree with aircraft altitude within 200 feet.
*16. Radar set - Check while airborne
K31-40
as follows:
a.
Turn on procedure: Function switch - TEST (information will
appear after time delay period).
b.
Initial adjustments:
(1)
BRT control - As required.
(2)
MODE switches - As required.
(3)
RANGE switches - 80.
(4)
120/60° degree button - 120°
.
(5)
TILT control - Move up or down to observe targets
above or below aircraft. Echo display will change in
shape and location only. Weather targets will not
change shape or location. Ground targets will not
change shape or location. Ground targets are selected
as a function of tilt.
4-35
