Teledyne Defense Electronics

Navy Contracts Teledyne For ALQ-99 Jammer TWTs

Sept. 8, 2020
Traveling-wave tubes provide the high-power microwave amplification for ALQ-99 jammer systems in Growlers and other U.S. Navy aircraft.

The U.S. Navy has awarded a five-year, firm-fixed-price contract to Teledyne Defense Electronics for the repair of traveling-wave tubes (TWTs) associated with the ALQ-99 jammer system. The contract, which is valued at $23,619,080, covers work to be completed by August 2025 with no options. The Naval Supply Systems Command Weapon Systems Support (Philadelphia, PA) is the contracting agency and repair work will be performed at the Teledyne Microwave Electronic Technologies (MEC) facility (Rancho Cordova, CA).

The ALQ-99 jammer system supports F/A-18G aircraft with TWTs providing amplification of pulsed and continuous-wave (CW) microwave-frequency signals within the system. TWTs are also used for microwave signal amplification in a wide range of defense electronic systems, including electronic warfare (EW), radar, communications, and missile tracking systems.

The ALQ-99 jammer system is used on a range of naval aircraft such as EA-18G Growlers, to disrupt an adversary’s radars, communications, and other electronic systems. The modular jammer system employs TWTs for microwave amplification for required pulse widths and pulse repetition frequencies (PRFs). An EA-18G Growler can carry as many as five tactical jammer transmitters and antennas in its jamming pods, two under each wing and one under the fuselage, with frequencies and power levels tailored to mission requirements. 

About the Author

Jack Browne | Technical Contributor

Jack Browne, Technical Contributor, has worked in technical publishing for over 30 years. He managed the content and production of three technical journals while at the American Institute of Physics, including Medical Physics and the Journal of Vacuum Science & Technology. He has been a Publisher and Editor for Penton Media, started the firm’s Wireless Symposium & Exhibition trade show in 1993, and currently serves as Technical Contributor for that company's Microwaves & RF magazine. Browne, who holds a BS in Mathematics from City College of New York and BA degrees in English and Philosophy from Fordham University, is a member of the IEEE.

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