Izifaki khodi zohlobo lwe-GE-A ziyizishumeki ezikhuphukayo ezingaxhunywanga zejubane elijikelezayo nokukalwa kwendawo. Ngokusekelwe kubuchwepheshe benzwa ye-Gertech ye-Tunneling Magnetoresistance (TMR), bahlinzeka ngezimpawu ze-orthogonal differential sin/cos ngekhwalithi ephezulu, kanye nesignali yenkomba kanye namasignali azo aphambene. Uchungechunge lwe-GE-A ludizayinelwe amagiya emojuli engu-0.3~1.0 anezinombolo zamazinyo ahlukene.