Electronic Weapons: Let The Right One In


April 11, 2009: One of the more powerful electronic counter-measures systems available is the ALQ-162. This system weighs less than 50 pounds (with antennas that are located on various parts of the aircraft). The main unit is a 40 pound 17x8x7 inch box that needs 650 watts of power. The ALQ-162 detects a wide array of radar signals, alerts the pilot to ones that are potentially dangerous, and can jam most of them. This is done using DRFM (Digital Radio Frequency Memory), which transmits back to the enemy radar a distorted return signal (which shows the wrong position of the ALQ-162 equipped aircraft).

The ALQ-162 is easily reprogrammed, to enable it to be updated with new information on enemy radars. Defeating DRFM is largely a matter of having software that can determine which radar return signal is real, and which is generated by DRFM. This is not easy, and the U.S. is careful who they export ALQ-162s equipped with DRFM to, so that potential enemies (like China). For that reason, Pakistan got ALQ-162s without DRFM.



Article Archive

Electronic Weapons: Current 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 



Help Keep Us Soaring

We need your help! Our subscription base has slowly been dwindling. We need your help in reversing that trend. We would like to add 20 new subscribers this month.

Each month we count on your subscriptions or contributions. You can support us in the following ways:

  1. Make sure you spread the word about us. Two ways to do that are to like us on Facebook and follow us on Twitter.
  2. Subscribe to our daily newsletter. We’ll send the news to your email box, and you don’t have to come to the site unless you want to read columns or see photos.
  3. You can contribute to the health of StrategyPage. A contribution is not a donation that you can deduct at tax time, but a form of crowdfunding. We store none of your information when you contribute..
Subscribe   Contribute   Close