Introduction to FCC HAC 2019 Volume Control Test Requirements and Standards in United States

Pono ka Federal Communications Commission (FCC) ma ʻAmelika Hui Pū ʻIa e hoʻomaka ana mai Dekemaba 5, 2023, pono e hoʻokō nā mea kikowaena lima lima i nā koi o ka maʻamau ANSI C63.19-2019 (ʻo ia hoʻi ka maʻamau HAC 2019). Hoʻohālikelike ʻia i ka mana kahiko o ANSI C63.19-2011 (HAC 2011), ʻo ka ʻokoʻa nui ma waena o nā mea ʻelua aia i ka hoʻohui ʻana i nā koi hoʻāʻo volume control i ka maʻamau HAC 2019. ʻO nā mea hoʻāʻo nui ka distortion, ka pane pinepine, a me ka loaʻa ʻana o ka manawa. Pono nā koi kūpono a me nā ʻano hoʻāʻo e pili i ka maʻamau ANSI/TIA-5050-2018.
Ua hoʻopuka ka US FCC i ka 285076 D05 HAC Waiver DA 23-914 v01 hoʻoponopono hoʻokuʻu ʻia ma Kepakemapa 29, 2023, me ka manawa hoʻokuʻu ʻia o 2 mau makahiki e hoʻomaka ana ma Dekemaba 5, 2023. Pono nā palapala hōʻoia hou e hoʻokō me nā koi o 285076 D04 Volume Control v02 a i ʻole me ka palapala kaʻina hana hoʻokuʻu manawa KDB285076 D05 HAC Waiver DA 23-914 v01 ma lalo o 285076 D04 Volume Control v02. Hāʻawi kēia hoʻokuʻu ʻana i nā mea hoʻokele lima lima e komo ana i ka hōʻoia e hoʻohaʻahaʻa i kekahi mau koi hoʻāʻo e like me nā ala hoʻāʻo ANSI/TIA-5050-2018 e hala i ka hoʻāʻo Volume Control.
No ka ho'āʻo Volume Control, nā koi hoʻokuʻu kikoʻī penei:
(1) No ka hoʻāʻo ʻana i ka narrowband a me ka broadband coding o nā lawelawe kelepona pūnaewele ʻole (e like me AMR NB, AMR WB, EVS NB, EVS WB, VoWiFi, etc.), penei nā koi:
1) Ma lalo o ke kaomi ʻana o 2N, koho ka mea noi i ka helu hoʻopaʻa inoa liʻiliʻi a me ka helu hoʻopāpā ākea. Ma kekahi leo, no nā lawelawe leo āpau, nā hana hui, a me nā hoʻonohonoho awa, pono ka loaʻa ʻana o ka hālāwai ≥ 6dB, a ʻo ka distortion a me ka pane alapine e hoʻokō i nā koi maʻamau.
2) Ma lalo o ke kaomi 8N, koho ka mea noi i ka narrowband encoding rate a me ka broadband encoding rate, a no nā lawelawe leo āpau, nā hana band, a me nā hoʻonohonoho awa ea ma ka leo like, pono ka loaʻa o ka hālāwai ≥ 6dB, ma kahi o ka maʻamau ≥ 18dB. Hoʻokō ka distortion a me ka pane pinepine i nā koi o ka maʻamau.
(2) No nā hoʻopāpā ʻokoʻa ʻē aʻe a me ka broadband ʻaʻole i ʻōlelo ʻia ma ka ʻikamu (1), pono ka loaʻa ʻana o ka hālāwai ma ≥ 6dB ma lalo o nā kūlana kaomi o 2N a me 8N, akā ʻaʻohe pono e hoʻāʻo i ka distortion a me ka pane pinepine.
(3) No nā ʻano hana hoʻopili ʻē aʻe i ʻōlelo ʻole ʻia ma ka mea (1) (e like me SWB, FB, OTT, etc.), ʻaʻole pono lākou e hoʻokō i nā koi o ANSI/TIA-5050-2018.
Ma hope o Dekemaba 5, 2025, inā ʻaʻole hoʻopuka ka FCC i nā palapala hou aʻe, e hoʻokō pono ʻia ka hoʻāʻo Volume Control e like me nā koi o ANSI/TIA-5050-2018.
Loaʻa i ka BTF Testing Lab ka mana hōʻoia hōʻoia HAC 2019, me ka RF Emission RF interference, T-Coil hōʻailona hōʻailona, ​​​​a me nā koi mana volume Control.