TM 11-6625-2709-12
c. OBS Indicator.
Function
Control or Indicator
Provides manual control of the direction of the bearing signal
OBS control
from the OBS indicator.
Indicates the direction of the bearing signal from the OBS
Course card
indicator.
Used to test ID-1347C/A~-82B when tested on AN/ARM-92B
To/from indicator
when IND/TEST switch is properly positioned.
VOR/localizer needle
VOR/localizer warning
flag
Glideslope needle
Glideslope flag
d. RMI.
Function
Control or indicator
Indicates the radio bearing signal obtained from the receiver.
RMI needle
Indicates the simulated magnetic heading signal obtained from
RMI card
the COMPASS SIMULATOR.
Function
Indicator or connector
Provides indicators to check the frequency control information from
FREQ SELECT (MHz)
the control unit.
(12 lamps)
When illuminated, indicates the presence of the 26 volts, 400 Hz used
26 V AC PWR lamp
by the receiver.
When illuminated, indicates the presence of the 27.5 volts dc used by
LOC PWR lamp
the receiver.
When illuminated, indicates the presence of the 27.5 volts dc used by
GS-PWR
the glideslope receiver.
Provides all power connectious between the aid box and the test set,
PWR connector
or the aircraft wiring.
Provides all instrument connection between the aid box and the test
INST connector
set, or the aircraft wiring.
When illuminated, indicates the presence of a ground used to set the
TEST lamp
receiver in a self-test mode.
2-6
