• Ubunzima bokukhanya kunye nesixhobo esihlangeneyo.•Iphaneli yeLCD enkulu nelungele amehlo yamkelwe kule yunithi.•Ugcino lwamandla.Amandla eyunithi acima ngokuzenzekelayo xa kungekho misebenzi yemizuzu emi-3.(Umsebenzi wokuvala ngokuzenzekela)•Imilinganiselo echaneke kakhulu iqinisekiswa ngobuchule obuphezulu bobuxhakaxhaka be-multi-frequency network impedance kunye nokulinganisa okuzenzekelayo.