TM 55-1510-219-10
AUDIO control
Adjusts audio level.
b.
Radar Signal Detecting Set Control Panel
Functions (AN/APR-39(V)2) (fig. 4-4).
CONTROL
FUNCTION
PWR switch
Turns set On or Off
ALT/HI Low
Selects mode of operation
switch
HI
Selects high altitude threat
mode
LOW
Selects low altitude threat mode
TEST switch
Initiates self test
AUDIO control
Adjust audio level
c.
Radar Signal Detecting Set Indicator Functions
(fig. 4-5).
CONTROL
FUNCTION
MA indicator
Illuminates to indicate the
presence of an MA threat.
BRIL control
Adjusts brilliance.
DAY-NIGHT
Rotation adjusts intensity of
control
display.
4-7.
RADAR WARNING RECEIVER AN/APR-44()
(V)3.
The radar warning receiver (fig. 4-6) indicates the
presence of certain types of search radar signals.
The radar warning receiver is protected by the 5ampere
circuit breaker placarded APR-44, located on the
mission control panel (fig. 4-1). For operating
instructions, refer to TM 11-5841-291-12.
CONTROL
FUNCTION
Radar warning
Illuminates
to
indicate
the
indicator
presence of an AI or SAM
threat.
VOLUME
Adjusts volume.
control
POWER switch
Turns set On or Off.
Figure 4-4. Radar Signal Detecting Set Control Panel (AN/APR-39(V)2
4-11
