
France, Spain and Sweden are jointly developing the AEA via a European Union initiative to develop an escort jammer to protect packages of aircraft in contested airspace. Specifically, the pod must counter contemporary and emerging SAM systems with engagement ranges of up to 400km – a veiled reference to the S-400 which could greatly restrict EU air forces’ use of stand-off weapons during future conflicts, according to the original AEA solicitation.
While not disclosed, the pod may be effective against radars transmitting in frequencies of 2GHz to 40GHz, encompassing the majority of early warning, ground-based air surveillance, and FC/GCI radars that such aircraft may encounter in a future conflict.
The AEA programme may also reflect the reality that, in future, EU nations might have to perform operations outside NATO auspices if the US is unable or unwilling to offer assistance. Hence, they will require robust electronic attack capabilities to accompany the robust kinetic SEAD assets currently maintained by EU members in the form of the Panavia Tornado-ECR air defence suppression aircraft –flown by Italy’s Aeronautica Militaire and Germany’s Luftwaffe – deploying the AGM-88.
Saab’s EAJP is designed to engage low frequency radars across a 150MHz to 4GHz waveband. Early-warning and ground-based air surveillance radars transmitting in VHF/UHF wavebands are an increasing concern – Russia has made notable investments into such systems with NIIDAR’s Podsolnukh-E and NNIIRT’s 55ZH6M Nebo-M VHF radars which entered service from 2000 being two examples.
Such radars may be able detect aircraft with a low radar cross-section. While not capable of producing sufficient track quality for SAM systems, they could indicate to fighters an area where hostile aircraft may be present. Jonas Grönberg, Saab’s head of emerging EW products, says that the EAJP is an escort jammer designed to get strike packages safely through contested airspace for use “against low frequency threats… to help get a strike package within stand-off range to fire their weapons”. The EAJP has been developed privately by Saab and a prototype is undergoing flight testing. Grönberg says the pod could complete development in the next three years.
At the technical level, debates are emerging concerning the employment of electronic versus kinetic effects to neutralise hostile radars. Saab’s Grönberg believes that in “10 to 15 years’ time it will be much more common that SEAD will be conducted primarily through EW assets directing jamming towards radars and the communications upon which networked IADS depend.”
Grönberg expects the possession of jamming pods to be “much more common than having ARMs,” which could result from the financial considerations discussed above. Nonetheless, he stresses that the choice of attack will be dictated by the desired effect: “Do you just want to suppress enemy radars, or do you want them completely out of the game?”
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