Electronic Warfare ELINT Receivers

Course length:

3 Days



Course dates

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This three day course will provide detailed insight into radar Electronic Warfare receivers, including their tactical employment and the evolution of their requirements (driven by threat developments). There will be significant emphasis on shipboard and submarine operational considerations. Receivers in both defensive warning and payload (ISR intercept) roles will be covered. Hostile Radar will be covered from the EW point of view, particularly the challenges modern radars present to RWR and ISR systems.. This will include radar waveforms (including modern pulse compression and pulse Doppler radars). Early warning and acquision systems and modern (double digit SAM) will be covered at the system and functional level. Note that there are also have significant communication signal aspects in both ISR and situation awareness roles. This is a practical, hands-on course in the design, evaluation and application of Electronic Warfare receiver systems. There are 12 course modules; each includes lecture and carefully structured in-class problems. The course starts with an introduction to the types of radio links important to EW and a review of dB equations. It moves on to describe important EW signal modulations: radar signals (including modern radars), communication signals (including all types of low probability of intercept (LPI) signals. Next it covers radio propagation formulas (line of sight, 2-ray, knife edge diffraction and over water). Then it covers the types of EW receivers, antennas and other technical aspects of EW receiver systems – including search, emitter location and man-machine interface. Attendees will learn how to calculate the sensitivity and dynamic range of analog and digital receiver systems. Finally, the course covers Radar Warning receivers and reconnaissance receiver systems (including remote controlled systems) and systems to intercept and locate hostile LPI emitters.

Attendees will receive a 300 page course syllabus with copies of all visual aids and work sheets for in-class problems. They will also receive the hard cover text book, Practical Communication Theory by the instructor; a 40 page EW Pocket Guide, and a special antenna and propagation slide rule.

What You Will Learn:

  • EW/ELINT receiver techniques and technologies
  • Digital receiver and Signal Processing Techniques
  • Receiver sensitivity and dynamic range calculations
  • Emitter location techniques
  • Operational evaluation of various types of receivers
  • Effective Range calculation, in both blue water and over land situations


Course Outline:

  1. dB math; For Radar and Electronic Warfare
  2. Basic link equation
  3. Over Water Propagation
  4. Selection and calculation of appropriate propagation model: Line of sight loss, 2 ray loss, knife edge diffraction and over water propagation
  5. Digital Communication; Frequency hopping and other LPI threats;
  6. Receiver types (crystal video, IFM, super-hetetrodyne, compressive, channelized and digital), Receiver sensitivity calculation, Receiver dynamic range calculation; Radar Warning & ISR Receiver system design (including signal processing, man machine interface, trends and challenges,
  7. Multiple receiver reconnaissance system design,
  8. Emitter location system approaches,
  9. Remote controlled systems,
  10. Design of systems for intercept and location of LPI threats.
  11. Airborne receiving systems examples
  12. Surface and submarine receiving systems (at the system block diagram and operational level.


David Adamy has spent 50 years as a systems engineer and technical manager in the EW field, designing and delivering systems from DC to light, mounted on platforms from submarines to space. He is an acknowledged expert in EW receiver system design. He is currently providing consulting support to the development and presentation of counter IED techniques and operator courses. He has published over 240 technical articles related to EW and receiver system design, including the popular EW101 column in the Journal of Electronic Defense, and has 15 books in print. He teaches EW related courses for Military, Government and Industry organizations in the US and in allied countries.


REGISTRATION: There is no obligation or payment required to enter the Registration for an actively scheduled course. We understand that you may need approvals but please register as early as possible or contact us so we know of your interest in this course offering.

SCHEDULING: If this course is not on the current schedule of open enrollment courses and you are interested in attending this or another course as an open enrollment, please contact us at (410)956-8805 or ati@aticourses.com. Please indicate the course name, number of students who wish to participate. and a preferred time frame. ATI typically schedules open enrollment courses with a 3-5 month lead-time. To express your interest in an open enrollment course not on our current schedule, please email us at ati@aticourses.com.

For on-site pricing, you can use the request an on-site quote form, call us at (410)956-8805, or email us at ati@aticourses.com.