The untraditional target set (i.e., small slow-moving or even static surface targets) can apparently be challenging for doppler radars designed to take on "high end" threats. However, according to Jane's International Defence Review: [The RNLN has] reported great success using tailored surface-search software for the APAR sets fitted to the De Zeven Provinciën-class frigates deployed on anti-piracy roles. By sacrificing some of APAR's high-end anti-air warfare capabilities, which were deemed unnecessary for the anti-piracy role, its performance and resolution were improved in the surface-search role. The exploits of the RNLN's De Zeven Provinciën class frigate HNLMS Tromp in regards to counter-piracy operations — including the April 2010 rescue of the container ship MV Taipan — are described here. The counter-piracy exploits of the HNLMS Evertsen are outlined here. See also Active electronically scanned array Phased array Notes Sources Jane's International Defence Review, September 2010, "Fighting the hydra: multinational piracy operations move inshore" Jane's Navy International, August 2010, "Expanding coverage from sea to sky" Jane's Radar and Electronic Warfare Systems, 2007–2008 Edition, Edited by Martin Streetly, Jane's Navy International, October 2005, "Live firing tests rewrite the guiding principles" Jane's International Defence Review'', February 2004, "Active phased array multifunction radars go live for missile firings" External links Manufacturer page about APAR Thales Canada page about APAR TMU development Thales Nederland page about March 2005 missile firings supported by APAR NavalTechnology page about De Zeven Provinciën class frigates NavalTechnology page about Sachsen class frigates Naval radars Phased array radar Thales Group Military radars of the Netherlands