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FMCW/Military Pulse Radio Altimeter Flight Line Test Set

The VIAVI ALT-8015 is the world’s first and only RF-based portable radio altimeter flight line test set. The ALT-8015 tests from the TX/RX antennas to the indicator in the cockpit, allowing the operator to replicate in-flight conditions, and isolate a bad component of the installed system.


The user interface is Windows™ based and provides various pages for control of the test set and display of parametric measurements including: TX power, TX frequency (center), sweep rate, TX pulse width (pulse systems).


The Profile page allows the user to create, save, recall or delete named profiles. Each profile is comprised of individual legs. Start, stop altitudes and rates are definable for each leg. A profile can then be executed to simulate a complete landing approach including flare out or a take-off and departure.

RF Coupling

The supplied antenna couplers allow the radio altitude system to be quickly verified without access being required to test ports on the UUT LRU. The RF looped test verifies TX frequency, power, sweep rate, and RF level control provides the means to test UUT sensitivity.


The setup page allows system, user and RF connection parameters to be set by the user, including RS-232, AID, RF cable loss and altitude offset.

Export Control

This product is controlled for export under the International Traffic in Arms Regulations (ITAR). A license from the U.S. Department of State is required prior to the export of this product from the United States.

Key Features

The graphical user interface provides various screens for control of the test set and display of parametric measurements including: TX power, TX frequency (center), sweep rate, FM deviation, TX pulse width, and PRF (pulse systems)

  • Tests FMCW radio altimeters including CDF types

  • Fast detector for tracking LPI radio altimeters with TX power managementt

  • Direct-connect to UUT transmit/receive port or to installed system via antenna couplers

  • Ratio-metric RF loop test allows TX, RX, antenna or feeder faults to be identified

  • Programmable multi-leg climb/descend profiles

  • Large color touch-screen display with simple user interface

  • Remote control interface (Ethernet)

  • Lightweight and compact

  • Battery 4 hours plus duration

  • Software upgradeable

Availability: 4-6 weeks

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Technical Specs


  • Terrain Awareness Warning System (TAWS) installations
  • Create profiles to control dynamic altitude simulations
  • Simulate a complete landing approach, including a flare out
  • Simulate a takeoff and departure
  • Replicate actual airborne conditions


  • Test set only 10.6”H x 13.9”W x 3.4”D (27.0 cm x 35.5 cm x 8.7 cm) w/ standard access
  • 12” H x 30.5”W x 22.5”D (30.5 cm x 77.5 cm x 57.2 cm)
  • Weight: 15.5 lbs. (test set only)
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