中文字幕日韩在线观看,久久久人人玩人妻精品综合,国产欧美日本在线,久久精品免费视频6,欧美精品黄色网站,色综合久久久久无码专区,亚洲区欧美中文字幕久久,国产手机在线视频,国产中文字幕视频在线观看,日本一区二区免费在线观看

Hotline:400-880-1556

English




Information Express | American FCC HAC 2019 standard has been implemented on December 5, 2023

Author:中認(rèn)聯(lián)科 time:2023-12-12 Ctr:636

According to the requirements of the Federal Communications Commission (FCC), from December 5, 2023, handheld terminal equipment must conform to the ANSI C63.19-2019 standard (also known as HAC 2019 standard).

The standard adds Volume control test requirements, and FCC has agreed to the partial exemption request of volume control test proposed by ATIS, so as to allow handheld terminal products to pass HAC certification by exempting some volume control tests.

From December 5, 2023, according to the latest regulations, the newly applied certification must fully meet the requirements of 285076 D04 Volume Control v02 or be combined with the requirements of 285076D05 HAC Waiver DA 23-914V01 under the temporary exemption procedure KDB.

Comparison between old and new versions of standard

標(biāo)準(zhǔn)新舊版本對(duì)比.png

Requirements of countries for HAC

各國(guó)對(duì)HAC要求.png

About HAC

Hearing aid compatibility (HAC) refers to the compatibility when a mobile phone and a hearing aid are used together. In order to reduce the electromagnetic interference caused by people wearing hearing AIDS when using mobile phones, communication standards organizations in various countries have formulated relevant test standards and compliance requirements for HAC.

HAC test is usually divided into RF Rating test and T-Coil test. The RF rating test evaluates whether the mobile phone will produce radio frequency interference when it is used with hearing AIDS. The audio signal test evaluates whether the sound signal sent by the mobile phone can be received and amplified by the hearing aid. Recently, the Federal Communications Commission (FCC) issued the latest requirements, adding the Volume Control requirements, aiming at ensuring that people wearing hearing AIDS can adjust the volume of their mobile phones according to their own needs, so as to obtain a better listening experience.

Warm tips

ZRLK has been focusing on the testing and certification of consumer electronic and electrical products for 20 years, always paying attention to the changes of laws and regulations in various countries, and providing customers with one-stop testing and certification services to ensure that your products enter the target market quickly. If you want to know more about the requirements of FCC certification in the United States or have products that need FCC certification in the United States, please feel free to contact us, and our engineers will serve you as soon as possible!

Related Articles
  • Sodium battery UN38.3 certification: a key link to ensure product safety and compliance

  • CCC certification points of large capacity charging box: battery, headphones can not be less

  • CCC certification of the earphone charging case: The rated capacity of the battery cell is less than 600mAh.

  • Attention! The latest standard of EU toy safety standard EN 71-3 has been released

Follow Us
heyzo高无码国产精品| 久久久久久久极品内射| 久久久久久久久蜜桃| 欧美性xxxxx极品娇小| 欧美老熟妇乱人伦人妻| 国产精品免费一区二区三区四区 | 日本一卡2卡3卡4卡免费精品 | 亚洲美女综合网| 日日夜夜免费视频| 丁香综合五月| 国产成人小视频在线观看| 久久首页这里只有精品视频| 91无码久久| 无码视频一区二区三区| 亚洲综合色无码| 91精品一区二区三区在线观看| 国语自产偷拍精品视频偷拍| 播放灌醉水嫩大学生国内精品| 亚洲AV无码久久忘忧草| 亚洲男人的天堂网站| 久久久久久久综合狠狠综合| 婷婷丁香五月中文字幕| 亚洲无码在线播放| 亚洲女人被黑人巨大进入| gogo无码大胆啪啪艺术| 国产强被迫伦姧在线观看无码| 亚洲午夜国产精品无码| 88国产精品视频一区二区三区| 国产av无码专区亚洲awww| 日本艳妓bbw高潮一19| 女女女女bbbbbb毛片在线| 久久久久国产综合av天堂| 中日韩精品视频在线观看| 99re在线精品| 亚洲精品毛片久久久久久久| 91热成人精品国产免费| 国产91辛尤里在线观看| 亚洲中文字幕久久精品无码APP| 欧美成年黄网站色视频| 亚洲高清毛片一区二区| 久久无码高潮喷水抽搐|