TM 11-5841-283-12/NAVAIR 16-30APR39-1
2-2. RADAR SIGNAL INDICATOR.
1.
INDICATOR SCREEN: CRT. Shows a line-of-bearing radial strobe for each
processed signal received by the spiral antennas.
2.
MA: Missle alert lamp. In the discriminator-on mode, flashes on and off to indicate
an immediate threat. Lamp flashes when low band signals associated with missile guidance
systems are correlated with high band signals associated with radar tracking systems (SAM
radar complex). In the discriminator-off mode, flashes when processed low band signals are
intercepted.
MA LAMP SHIELD: Missile alert lamp shield.
3.
Reduces MA lamp brightness when
aircraft pilot is wearing right vision glasses.
4.
BRIL: Potentiometer. Varies the brilliance of the indicator strobe. Used together
with the filter control to produce a highly visible and clear display under most
lighting conditions.
5.
NIGHT-DAY: Filter. Varies the density of the red polarizing face plate filter for day
or night operation. Used together with the BRIL control to produce a highly visible and
clear display under most lighting conditions.
2-2