Praetorian DASS

As the DASS is fully integrated, it does not require additional pods that take up weapon stations or would influence the aircraft's aerodynamic performance.

In 1997, DASA looked to join the EuroDASS consortium proposing to use the towed radar decoy (TRD) it had developed.

[15] The system is divided into 20 major line replaceable units (LRU) with all the components controlled by a Teldix GmbH Defensive Aids Computer (DAC) on MIL-STD-1553 databus.

The RWR is designed to detect threat radars using super heterodyne, digital receiver antennas which are located into the wing tip pods giving full 360° coverage with an accuracy better than 1° in azimuth.

Using this information the ESM allows the identification of the radar and thus the platform it is deployed from and presents it on a moving map or multifunction display producing a 360° threat picture around the aircraft including identifying targets and even their zones of lethality.

[21] As part of the Phase 1 Enhancement (P1E), Typhoons received new antennas, extending the frequency range and increasing the power and improved DRFM- and ECM techniques.

[24][25] In 1991, GEC-Plessey Avionics received the order to develop the missile approach warner derived from their PVS2000 MAW and utilises an active, millimeter-wave Ka-band (32–38 GHz) pulse-doppler radar for detection.

[27] They can detect multiple missiles launched towards the aircraft in all weather conditions and even after the rocket motor's burnout phase.

SDS will significantly enhance the combat survivability of the Eurofighter Typhoon", says Anders Carp, head of Saab business area Surveillance.

"Saab´s electromechanical self-protection system BOL has been in use on Eurofighter since its inception, and we are now looking forward to strengthening the platform’s countermeasure capability through SDS."

As the TRD is an offboard jammer, radar systems featuring a home on jam mode (HOJ) will not be able to directly lock on to the aircraft itself.