TM 1-1510-233-CL
P-28
19. PNEU & ENVIRO BLEED AIR valve switches
(2) – ON.
WEATHER RADAR
1.
RADAR mode selector switch – SBY.
2.
LSS mode selector switch – SBY.
3.
WX push-button selector switch (display con-
troller) – Depress. Observe that EHSI displays
partial compass heading arc.
WARNING
The radar transmitter is radiating X band
microwave energy when in the test
(TST) mode.
4.
RADAR mode selector switch – TST. Observe
that WX mode annunciator on EHSI remains in
STBY.
5.
Range switches (radar control panel) – De-
press both switches simultaneously. Observe
that WX mode annunciator on EHSI changes
from STBY to TEST, and that magenta, red,
yellow, and green are displayed. A green noise
band will appear at the upper arc range mark-
ing.
6.
RADAR mode selector switch – SBY, then as
required.
7.
Range switches (radar control panel) 50 NM or
greater.
8.
LSS mode selector switch – CLR TST.
