O lenei S-band cavity bandpass filter e ofoina atu le sili ona lelei40dB out-of-band teena ma ua mamanuina e faʻapipiʻi i-laina i le va o le leitio ma le antenna, poʻo le tuʻufaʻatasia i totonu o isi masini fesoʻotaʻiga pe a manaʻomia le faʻaogaina atili o le RF e faʻaleleia ai le faʻaogaina o fesoʻotaiga. O lenei faamama bandpass e fetaui lelei mo faiga fa'aoga leitio, fa'apipi'i nofoaga fa'apipi'i, faiga fa'avae, node feso'ota'iga, po'o isi feso'ota'iga feso'ota'iga feso'ota'iga o lo'o fa'agaoioia i si'osi'omaga RF fa'alavelave, fa'alavelave maualuga.