Otu oghere duplexer bụ ụdị pụrụ iche nke duplexer a na-eji na sistemụ nkwurịta okwu ikuku iji kewaa akara ebugharị na enwetara na ngalaba ugboro.Oghere duplexer nwere oghere dị iche iche na-agbapụta, nke ọ bụla na-ahụ maka nzikọrịta ozi n'otu ụzọ.
Ụkpụrụ na-arụ ọrụ nke oghere duplexer dabere na nhọrọ ugboro ole, nke na-eji oghere resonant akọwapụtara nke ọma iji na-ebunye akara n'ime oke ugboro.Kpọmkwem, mgbe ezigara mgbaama n'ime oghere duplexer, a na-ebunye ya n'otu oghere resonant akọwapụtara ma gbasaa ma bufee ya n'ogo nke oghere ahụ.N'otu oge ahụ, mgbaama natara na-anọgide n'ime oghere ọzọ na-emegharị anya na agaghị ebufe ya ma ọ bụ gbochie ya.