The Ferranti Blue Fox is a British

United Kingdom

The United Kingdom of Great Britain and Northern IrelandIn the United Kingdom and Dependencies, other languages have been officially recognised as legitimate autochthonous languages under the European Charter for Regional or Minority Languages...

 airborne radar designed and built for the Royal Navy

Royal Navy

The Royal Navy is the naval warfare service branch of the British Armed Forces. Founded in the 16th century, it is the oldest service branch and is known as the Senior Service...

 by Ferranti Defence Systems

Ferranti

Ferranti or Ferranti International plc was a UK electrical engineering and equipment firm that operated for over a century from 1885 until it went bankrupt in 1993. Known primarily for defence electronics, the Company was once a constituent of the FTSE 100 Index but ceased trading in 1993.The...

, Edinburgh, Scotland.

Design and development

The Blue Fox is a lightweight frequency agile

Frequency agility

Frequency agility is the ability of a radar system to quickly shift its operating frequency to account for atmospheric effects, jamming, mutual interference with friendly sources, or to make it more difficult to locate the radar broadcaster through radio direction finding...

 I-band

I band

The I band is the range of radio frequencies from 8 GHz to 10 GHz in the electromagnetic spectrum. This is equal to wave lengths between 3.75 cm and 3 cm. The I band is in the SHF range of the radio spectrum....

 airborne radar designed for use on the British Aerospace Sea Harrier with two roles, airborne interception and air-to-surface search and strike. The radar is modular with a flat aperture slotted-array antenna.