Eriya helical spring coil eriya shine maɓuɓɓugar ƙarfe na ƙarfe wanda yawanci ana shigar dashi akan tashar jirgin PCB. Antenna spring Dutsen, Material karfe, jan karfe, bakin karfe.
Ana iya watsa siginar lantarki na polarization da ke juyawa a cikin sarari. Ana amfani da wannan eriya yawanci a tashar ƙasa wajen sadarwar tauraron dan adam. Tare da masu ba da ma'auni marasa daidaituwa, irin su igiyoyin shaft suna da alaƙa da eriya, cibiyar kebul ɗin tana haɗe zuwa ɓangaren karkace na eriya, kuma fatar jikin kebul ɗin tana haɗe zuwa mai nuni.