TM 55-1510-221-MTF
b.
Defective radar antenna.
K33. No display on radar control indicator.
a.
Defective radar control-indicator.
b.
Defective radar receiver-transmitter.
c.
Defective radar antenna.
K34. Wavy, chopped, or missing range circles or indicator.
a.
Defective radar control-indicator.
b.
Defective radar receiver-transmitter.
K35. Improper display on radar control-indicator (track line
bent folded or does not begin at proper position).
a.
Defective radar receiver-transmitter.
b.
Defective radar control-indicator.
K36. No targets on radar control-indicator or targets do not move
with TILT control.
a.
Defective radar control-indicator.
b.
Defective radar receiver-transmitter
c.
Defective radar antenna.
K37. Radar gain control has no effect on display (ground
mapping mode only).
a.
Defective radar control-indicator.
K38. Radar TILT control inoperative.
a.
Defective radar control indicator.
K39. Radar BRT control inoperative.
a.
Defective radar control-indicator.
K40. Radar range does not vary when RANGE switch is changed
to various positions.
a.
Defective radar control-indicator.
K41. Transponder cannot be interrogated or provides
unsatisfactory response.
3-35
