<blockquote id="m68pp"></blockquote>
    <ruby id="m68pp"></ruby>
    <style id="m68pp"></style>

  • <rt id="m68pp"></rt>
  • 国产少妇偷窥自拍,国产成人无码A片免费看,av超碰,人人妻人人狠人人爽,久久久久久亚洲精品成人,免费人妻无码不卡中文字幕系,人人玩人人添人人澡超碰,宝贝腿开大点我添添公口述视频
    Hotline:400-880-1556

    English




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

    Author:中認聯(lián)科 time:2023-12-12 Ctr:1765

    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

    標準新舊版本對比.png

    Requirements of countries for HAC

    各國對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
    • Win the Market with Valid Certificates: Must-Know Guide to CCC Certification for Neck Fan Batteries

    • Empower Overseas Expansion with Compliance: Core Value of UN38.3 Certification for Robot Vacuum Cleaner Batteries

    • Efficient UN38.3 Certification: Help Drones Capture Overseas Market Share

    • CCC Certification for Power Banks: A Must for Compliant Operation to Unlock New Market Opportunities

    Follow Us
    主站蜘蛛池模板: 日韩在线欧美| 综合AV| 亚洲无码A视频在线| 国产性一交一乱一伦一色一情| 国产尤物精品自在拍视频首页| 少妇人妻偷人一区二区| 亚洲AV第二区国产精品| 精品一区二区三区在线观看视频| 少妇无码一区二区三区免费 | 一本色道久久东京热| 国产美女裸身网站免费观看视频| av东京天堂热| 在线日韩欧美一区二区三区| 亚洲综合网中文字幕在线| 欧美丝袜另类| 萨迦县| Www.黄色| 久久久综合香蕉尹人综合网| 亚洲中文字幕在线无码一区二区| av无码久久久久不卡网站蜜桃| 国产精品18| 大厂| 亚洲国产av永久精品成人| 欧美久久gogo日本大胆欧美人| 97人妻中文字幕精品| 中文字幕人妻中文AV不卡专区 | 久久精品免费无码区| 免费天堂网av手机版| 国产无遮挡又黄又大又爽| 日本中文字幕在线| 日韩精品国内国产一区二| 日本乱子人伦在线视频| 青草视频免费在线观看| 国产制服丝袜在线播放| 一本无码在线观看| 国产亚洲美女精品久久久久狼| 成人性生交大片免费网站| 成人乱人乱一区| 四虎国产精品久久免费地址| 99久热在线精品996热是什么| 国产91丝袜在线观看|