User's Manual

THALES COMMUNICATIONS
OIM
AHV1600-SYSTEM
Page 101
July 16/09
PRESENTATION
1. AHV1600 RADAR ALTIMETER SYSTEM GENERAL DESCRIPTION
The Radar Altimeter System, named AHV1600, consists of three LRU (Line Replaceable Unit) and is com-
posed of:
− one AHV1600 transceiver,
−
one antenna ANT-140A to transmit radio frequency (RF) signal,
−
one antenna ANT-140A to receive radio frequency (RF) signal.
Two coaxial cables (not provided) are necessary:
−
one transmission cable, to connect the transmission antenna to the transceiver,
−
one reception cable, to connect the reception antenna to the transceiver.
Transmission antenna ANT140A
LRU
Transceiver AHV1600
LRU
Reception antenna ANT140A
LRU
AHV1600_RADAR ALTIMETER
Reception cable
Transmission cable
Figure 101 – AHV1600 RADAR ALTIMETER SYSTEM BLOCK DIAGRAM
The AHV1600 is an autonomous system mounted on an aircraft and connected to:
−
28 Vdc power supply line:
•
“P28V” and “RET28V” signals.
−
Transmit and receive antennae for Radio Frequency (RF) signals through coaxial cables (“TX and
RX” signals).
−
Navigation and guidance systems through:
• Dual differential ARINC429 digital output serial line (“TX429_HI_1, TX429_LO_1 and
TX429_HI_2, TX429_LO_2” signals).