TM 11-5840-281-12-1
2-1. FUNCTIONS OF CONTROLS, SWITCHES, AND INDICATORS. (CONT)
KEY
CONNECTOR
FUNCTION
7
BITE-AZ TILT switch
Provides meter selection to monitor azimuth antenna
tilt or BITE (built-in test equipment).
8
AZ TILT/BITE meter
Provides azimuth antenna tilt information and mainte-
nance control-indicator voltage information.
9
INTENSITY control
Controls brightness of time-base sweep on display.
10
FOCUS control
Controls focus of crt electron beam.
11
HV ON switch/indicator
Controls application of high voltage to transmitter.
12
TRANSMITTER switch
Selects width of transmitter pulse.
13
ANTENNA switch
Controls vertical tilt of azimuth antenna and horizon-
tal servo direction of elevation antenna.
14
VIDEO GAIN control
Controls brightness of video signals on display.
15
EL TARGET control
Adjusts monopulse operation of receiver.
16
IF GAIN AZ control
Controls if gain on search and beta azimuth display.
17
IF GAIN EL control
Controls if gain on beta elevation display.
18
FTC switch
Controls video output of receiver.
19
STC switch
Reduce receiver if gain at close ranges.
20
PPI CENTERING HORIZ
Controls horizontal position of ppi display when
control
CENTERING NORM-OFFSET switch is in NORM position.
21
PPI CENTERING VERT control
Controls vertical position of ppi display when
CENTERING NORM-OFFSET switch is in NORM position.
22
PPI CENTERING NORM-
Selects either normal or offset centering controls.
OFFSET switch
23
PPI CENTERING VERT control
Controls vertical centering of ppi display when PPI
knob
CENTERING NORM-OFFSET switch is in OFFSET position.
24
PPI CENTERING HORIZ
Controls horizontal centering of ppi display when PPI
control knob
CENTERING NORM-OFFSET switch is in OFFSET position.
25
GRID (vector)
Movable grid used to aid operator in selecting a
definite bearing on compass rose.
26
Compass rose
Allows operator to determine aircraft bearing.
2-7
Previous Page
