Yog tias peb coj lub TV hauv peb lub neej ua piv txwv, tus modulator yog hloov kho cov teeb liab video thiab lub teeb liab ntawm peb lub TV teeb tsa saum toj kawg nkaus lossis satellite digital TV receiver, thiab tom qab ntawd tso tawm cov teeb liab los ntawm lub thawv TV lossis receiver, uas yog, cov tswv yim Qee zaus nws yog lub suab thiab video teeb liab, thiab thaum nws tso zis, nws dhau los ua ib qho kev hloov pauv siab zaus ntawm ib qho kev sib tw tshwj xeeb.
