Installation Manual

THALES Communications
OIM
AHV1600-SYSTEM
Page 120
July 16/09
E. IN FLIGHT CONDITIONS
In-flight conditions are defined in the following table:
Height range domain From 0 ft to 5000 ft ED-30 height range category B
Horizontal velocity
From 0 ft/s to 500 ft/s up to H = 500 ft
From 0 ft/s to 1000 ft/s up to H = 500 ft
Height variation velocity
From 0 ft/s to 20 ft/s up to H = 50 ft
From 0 ft/s to 50 ft/s at 50 ft < H < 500 ft
From 0 ft/s to 500 ft/s at 500 ft < H < 800 ft
From 0 ft/s to 2000 ft/s above H = 800 ft
ED-30 in-flight condition category L/P
Pitch angle Range of 0 to ± 25°(at - 3 dB)
Roll angle Range of 0 to ± 45°(at - 3 dB)
ED-30 in-flight condition category L
Radar Altimeter in-flight conditions
4. ANTENNA ANT-140A
A. GENERALITIES ON ANTENNA ANT-140A
The ANT140A antenna is a flat antenna for AHV1600 Radar Altimeter.
The complete installation of the Radar Altimeter requires two identical antennae ANT-140A: one for
transmission (Tx) and one for reception (Rx). These two antennae must be suitably located and
connected by coaxial cables to the transceiver.
The antenna is certified by the DO160B certification.
B. PHYSICAL CHARACTERISTICS

Dimensions: 105.41 x 90.17 x 33 mm,

Weight: 130 ± 20 g,
The antenna is fitted with a female TNC 50 ohms coaxial connector. The connector is protected
with a special cap that must be removed before connecting the antenna.
Two labels equip the antenna: an identification label and an amendment label.
A red ink marking indicates antenna orientation into aircraft.