The Viavi ALT-9000 radio altimeter test set is a portable flight line test solution that uses fiber optic delay to allow it to work with all types of radio altimeters. The ALT-9000 will test the complete radio altimeter system — allow technicians to isolate problems to the antenna, coax, LRU or or indicator. This eliminates unnecessary LRU swaps or other system component replacements.
规格：
Weight:
32 lb (14.5 kg), Test unit only
39.9 lb (88 kg), Kit
Dimensions:
8.4x 18.6 x 16.3 in (21.4 x 47.4 x 41.5 cm), test case case
16.4 x 33.7 x 28.5 in (41.6 x 85.6 x 72.4 cm), w/standard transit case, or accessory case
Temperatures:
14°F to 131°F (-10°C to 55°C), operating
-22°F to 158°F (-30°C to 70°C), storage
Display:
12-inch color LCD, sunlight readable w/backlight
Controls:
touchscreen
Impedance:
50Ω
SWR:
2.0:1, TX
1.5:1, RX
Connector:
TNC (x2), single TX/RX channel
RF Input Frequency Range:
4.20 GHz — 4.40 GHz
FMCW/CDF FMCW
TX Power Measurement:
4 mW (+6 dBm) to 2W (+33 dBm), ±2 dB
FM Sweep Rate Measurement:
50 Hz — 400 Hz, ±5Hz
FM Deviation:
±20 MHz — 100 MHz, ±5 Hz
Pulse
Frequency Measurement:
4.2 GHz — 4.4 GHz, ±10 MHz
TX Power Measurement:
1 mW (0 dBm) to 300 W, (+54 dBm) peak
TX Pulse Width PRF Measure:
20 ns — 5 µs, ±10 ns
TX Pulse PRF Measurement:
2 KHz — 30 KHz, ±5%
特征：
Simulate static or dynamic altitudes to support testing of TCAS and GPWS/TAWS aircraft systems
Test RX sensitivity of the radio altimeter
Tests all types of radio altimeters, including LPI variants
Direct-connect to UUT TX/RX connectors or at the aircraft's TX/RX antennas via couplers
Fast detector for tracking LPI radio altimeters with TX power management
Software upgradeable
Parametric measurements of TX power, frequency, pulse width, FM deviation, PFR for most radio altimeter types
Large touchscreen display
