TM 55-1510-222-MTF
K33.
K34.
K35.
K36.
K37.
K38.
K39.
K40.
b. Defective radar receiver-transmitter.
c. Defective radar antenna.
d. Defective wiring.
Wavy, chopped, or missing range circles or indi-
c a t o r .
a. Defective radar control-indicator.
b. Defective radar receiver-transmitter.
Improper display on radar control-indicator
(track line bent folded or does not begin at prop-
er position).
a. Defective radar receiver-transmitter.
b. Defective radar control-indicator.
No targets on radar control-indicator or targets
d o n o t m o v e w i t h T I L T c o n t r o l .
a. Defective radar control-indicator.
b. Defective radar receiver-transmitter.
c. Defective radar antenna.
Radar gain control has no effect on display
(ground mapping mode only).
a. Defective radar control-indicator.
Radar TILT control inoperative.
a. Defective radar control indicator.
Radar BRT control inoperative.
a. Defective radar control-indicator.
Radar range does not vary when RANGE switch
is changed to various positions.
a. Defective radar control-indicator.
Transponder cannot be interrogated or provides
unsatisfactory response.
a. Mode C not set or defective.
b. Encoding altimeter defective.
3-35
