"ARACHNE" (Spider) is a sophisticated passive multistatic covert Radar, the result of more than 10 years research and development, for efficient counter of the threat posed by stealth and semi-stealth aircraft.

"ARACHNE" employs a set of low cost receiving systems distributed over a wide geographical area using transmitters of opportunity as target illuminators. It features the following advantages: * Low procurement cost. * Lower costs of operation and maintenance. * Lack of expensive transmitter and associated antenna system. * No need for radar special frequency allocations. * Physically small and easily deployed in places where conventional radars cannot be installed. * Capabilities against semi-stealth aircraft due to the frequency bands and multistatic geometries employed. * Rapid radar area image updates. * Jamming resistant. * Covert operation. * Resilience to anti-radiation missiles. It eliminates all disadvantages of traditional Radar Detection and offers an extremely high level of protection of tactical and strategic areas protection from single or multiple hostile stealth aircraft.