AN/ALQ-135

The AN/ALQ-135 is an airborne system for electronic countermeasures in the short to medium distance. It is produced by the U.S. company Northrop Grumman.

Description

The ALQ -135 is designed to equip the F- 15E Strike Eagle as part of the TEWS project ( " Tactical Electronic Warfare System") with an internal Radarstörsystem. It was made in 1990 after some delays in service. Meanwhile, many F-15C were equipped with this system. In the course of time a number of performance improvements have been carried out, wherein one particularly sought a continuous extension of the frequency range.

Originally, the ALQ -135 was designed to neutralize radar-guided missiles and target illumination radars with short to medium range. Through the implementation of parasitic capacitances in tieffrequenteren areas and the disturbance of search and Feuerleitradaren is now possible. The system is connected as part of the TEWS project with the AN/ALR-56-Radarwarner and the AN/ALE-45-Täuschkörperwerfer to respond autonomously and effectively to threats. In addition, the software can be reconfigured in the field, so that countermeasures can be adapted to the expected range of threats.

Overall, the system total of more than 6600 hours was in combat use, including during the Kosovo War and Operation Southern Watch. For these interventions, no F-15 has been lost.

Variant AN/ALQ-135M

The ALQ - 135M represents a significant evolution of the original ALQ -135 system dar. By using modern components, the old traveling wave tubes could be removed to give the new system weighs 63% less and 71 % less volume required. In addition to extensive performance improvements, the reliability could be increased tenfold by the manufacturer. It also come PowerPC CPUs for signal processing used.

Platforms

  • F-15A/C/D Eagle
  • F- 15E Strike Eagle

Specifications

  • Weight: 150 kg
  • Volume: 0.15 m³
  • Frequency Range: 2-20 GHz (including upgrades)
Fire-control radar
52135
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