Izidingo zesitifiketi se-FCC HAC zokulawula ivolumu

I-FCC idinga ukuthi kusukela ngomhla ka-5 Disemba 2023, itheminali ebanjwa ngesandla kufanele ihlangabezane nezinga le-ANSI C63.19-2019 (HAC 2019).
Izinga lengeza izimfuneko zokuhlolwa kokulawulwa kwevolumu, futhi i-FCC inikeze 'isicelo se-ATIS sokukhululwa ingxenye ekuhlolweni kokulawula ivolumu ukuze kuvunyelwe itheminali ebanjwa ngesandla ukuthi iphumelele isitifiketi se-HAC ngokuyekisa ingxenye yokuhlolwa kokulawula ivolumu.

Izidingo zokuhlolwa kobuchwepheshe zokuguqula inzuzo yengxoxo, ukuhlanekezela, nokuhlolwa kwempendulo yemvamisa ye-KDB 285076 D04 yokulawula ivolumu ngaphansi kwesimo sokukhululwa DA 23-914

1.Ngokuvumelana nokukhululwa, kuphela izifaki khodi zezwi ze-CMRS Narrowband ne-CMRS Wideband ezidingekayo ukuze kuhlangatshezwane nezimfuneko zokulawula ivolumu yezinga lokulawula ivolumu ye-TIA 5050-2018:
1)Isivivinyo sokusebenzisa amandla e-2N
Ukuhlola okusebenzisa amandla e-2N, amasevisi ezwi namabhendi okusebenza awo wonke amadivayisi abanjwe ngesandla kanye nezilungiselelo zokulawula ivolumu ye-narrowband eyodwa kanye nekhodekhi yezwi ye-wideband eyodwa kusixhumi esibonakalayo kusetshenziswa isilinganiso se-encoder esikhethwe umfakisicelo kufanele okungenani sibe nenzuzo yeseshini eyodwa≥ 6dB.
2)Isivivinyo sokusebenzisa amandla e-8N
Ukuhlola okusebenzisa amandla e-8N, amasevisi ezwi namabhendi okusebenza awo wonke amadivayisi aphethwe ngesandla ashumekiwe kanye nezilungiselelo zokulawula ivolumu ye-narrowband eyodwa kanye nekhodekhi yezwi ye-wideband eyodwa kusixhumi esibonakalayo kusetshenziswa isilinganiso se-encoder esikhethwe umfakisicelo kumele okungenani sibe neseshini eyodwa inzuzo≥ 6dB.. Asikho isidingo sokuhlangabezana noma ukweqa izimfuneko ezigcwele zenzuzo yeseshini ye-18dB ezicaciswe ku-TIA 5050 Isigaba 5.1.1.
2. Kwamanye amakhodekhi omsindo angahlolwa ku-2), ukuhlanekezelwa kokwamukela, ukusebenza komsindo, nemvamisa yokwamukela umsindo ku-TIA 5050-2018 nakho akudingekile, kodwa lawa makhodekhi omsindo adinga ukuhlola inzuzo yeseshini engaphezu kuka-6dB ku-2N futhi Izifunda ze-8N zazo zonke izinsiza zezwi, amabhendi asebenzayo nezindawo zokusebenzelana komoya zetheminali engenantambo.

 

Ezinye izimfuneko zesitifiketi
1.Ilebula yokupakisha izothobelana nezidingo ze-47 CFR Ingxenye 20.19(f)(1) futhi ibonise inzuzo yangempela yeseshini etholwe ngaphansi kwezimo zokukhululwa kwe-codec ezitholwe ku-1) no-2) ngenhla kanye ne-2N kanye ne-8N application force.
2.Ngaphezu kwezimfuneko ezishiwo ku-1) no-2) ngenhla, zonke izinsizakalo zezwi, i-coDEC, amabhendi asebenzayo, nezindawo zokusebenzelana komoya ezifanelekela ukukhululwa ku-HAC kufanele zithobele Isigaba 4 se-ANSI Esijwayelekile sika-2019 WD RF Interference, Isigaba 6 WD T- Ukuhlolwa kwesignali yekhoyili.
3.Ngemuva komhla ka-5 Disemba 2023, amatheminali aphathwa ngesandla kufanele aqinisekiswe yimibandela yokukhululwa noma ahlangabezane ngokugcwele nezinga le-ANSI lango-2019 kanye ne-TIA 5050 yokulawula ivolumu. Ngemva kokuphela kwesikhathi sokuyekelela, uma kungekho sinyathelo esengeziwe esithathwa yiKhomishana, amatheminali aphathwa ngesandla azobhekwa njengethobelana nezimfuneko zokuhambisana nensiza yokuzwa uma ehlangabezana nezinga eligcwele le-ANSI lango-2019 kanye nezinga elihlobene lokulawula ivolumu ye-TIA 5050.
4.Izimo zokukhululwa ziphelelwa yisikhathi eminyakeni emibili ngemva kosuku lokukhishwa kwe-Exemption Order DA 23-914, futhi amatheminali aphathwa ngesandla atholwe ngaphansi kwalo mbandela ngeke akhululwe njengokuhambisana nensiza yokuzwa.
5.Ukuze kuqinisekiswe ukuhambisana kwayo nombiko wokuhlola, itheminali ephathwa ngesandla ingabhekisa endleleni yokuhlola eyenziwe lula ehambisanayo ngokuya ngolwazi ukuze kuncishiswe inani lokuhlola.
Njengoba kungewona wonke ama-codec asekelwa idivayisi okumele ahlangabezane nezimfuneko, akunandaba ukuthi lawa makhodekhi ahlangabezana nezimfuneko noma noma inzuzo yeseshini idinga ukubuyekezwa ngokumelene nokukhululwa, umbiko wokuhlola kufanele uqukathe uhlu lwawo wonke amakhodekhi asekelwa idivayisi. .