AIRPLANE
OPERATIONS
MANUAL
NAVIGATION AND
COMMUNICATION
REVISION 38
2-18-45
Page
3
Code
01
AOM-145/1114
GENERAL
The weather radar system consists of an integrated
Receiver/Transmitter/Antenna unit (RTA) and a dedicated control
panel. The RTA transmits and receives on the X-band radio frequency.
The RTA processes radar echoes received by the antenna. The scan-
converted data are displayed on PFDs’ and MFDs’ radar mode field.
The weather radar system run on 28 V DC powered by one of the
Avionics Switched DC Buses. Should a power supply failure occur, the
weather radar system will become inoperative, as there is no backup
power source for this system.
The weather radar interfaces with other airplane systems and
equipment as presented in the schematic diagram below.
EM145AOM182030A.DGN
WEATHER RADAR
CONTROL PANEL
RECEIVER/
TRANSMITTER/
ANTENNA
(RTA)
ADC−2
(WXR−880 ONLY)
PFD 1 MFD 1 MFD 2 PFD 2
IC−600 1 IC−600 2
IRS 2
WEATHER RADAR SCHEMATIC
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