SPDT ndichidule cha Single Pole Double Throw.Chophimba chimodzi choponyera pawiri chimakhala ndi mapeto osuntha ndi mapeto okhazikika.Mapeto osuntha ndi otchedwa "POLE", omwe ayenera kugwirizanitsidwa ndi mzere wolowera wa magetsi, ndiko kuti, mapeto omwe akubwera, ndipo nthawi zambiri mapeto amagwirizanitsidwa ndi chogwirira chosinthira;Mapeto ena awiri ndi malekezero awiri a mphamvu zopangira mphamvu, zomwe zimatchedwa kuti zokhazikika, zomwe zimagwirizanitsidwa ndi zipangizo zamagetsi.Ntchito yake ndikuwongolera magetsi kuti atulutse mbali ziwiri zosiyana, ndiko kuti, angagwiritsidwe ntchito kulamulira zipangizo ziwiri, kapena amathanso kulamulira chipangizo chomwecho kuti asinthe njira yoyendetsera ntchito.
67GHz ndiye ma frequency apamwamba kwambiri omwe titha kupanga tsopano.
SPDT coaxial switch ndi coaxial switch yokhala ndi SPDT.Mutha kusankha tsatanetsatane monga tchati chosankha chogulitsa kuti musankhe chosinthira chofunikira pakompyuta yanu ya RF/microwave.