Izihlungi ze-band-stop zinekhono lokuvimba noma ukunciphisa amasignali ebangeni elithile lefrikhwensi, kuyilapho amasiginali angaphandle kwalolo bubanzi ahlala ekhanyela.
Izihlungi ze-band-stop zinamafrikhwensi amabili anqamule, imvamisa yokusika ephansi kanye nefrikhwensi ephezulu yokusika, okwenza ibanga lefrikhwensi elibizwa ngokuthi “ibhendi yokungena”.Amasignali ebangeni le-passband ngeke athintwe yisihlungi.Izihlungi ze-band-stop zakha ububanzi befrikhwensi eyodwa noma ngaphezulu ebizwa ngokuthi “ama-stopbands” ngaphandle kwebanga le-passband.Isignali kububanzi be-stopband incishisiwe noma ivinjwe ngokuphelele isihlungi.