• <pre id="br18r"></pre>
    1. <blockquote id="br18r"><p id="br18r"></p></blockquote><blockquote id="br18r"></blockquote>

          1. 国产实拍强伦奸在线观看,久久精品国产久精国产果冻传媒,亚洲3p无码一区二区三区,日韩人妻一曲二曲,亚洲AV涩涩涩成人网站在线播放,精品久久综合1区2区3区激情 ,99久久久无码国产精品动漫,日逼导航
            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:1691

            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
            • Compliance for Overseas Audio-Visual Equipment: Detailed Explanation of FCC ID Certification for Projectors

            • CCC Certification for PD Chargers: A Compulsory Compliance Qualification for Fast-Charging Power Supplies

            • SRRC Certification: Consolidating the Market Access Threshold for Smart TVs

            • Essential for Compliant Development of 4G Cameras: Detailed Explanation of the Importance of CCC Compulsory Certification

            Follow Us
            主站蜘蛛池模板: 韩国主播福利视频一区二区| 无码人妻久久久一区二区三区| 国产成人精品无码片区在线观看| 欧美激情 亚洲 在线| 亚洲二区av| 国产精品人妻精品| 乱人伦视频中文字幕在线| 国产97人人超碰CAO蜜芽PROM| 亚洲精品97久久一| 亚妇色人网| 狠狠色噜噜狠狠狠狠五月婷| 婷婷开心色四房播播| 欧美成本人视频免费播放| 欧美色欧美亚洲高清在线观看| 欧美性猛交久久久乱大交小说 | 久久精品国产av极品| 国产中年熟女高潮大集合| 国产成人拍国产亚洲精品| 国产精品亚洲色婷婷99久久精品 | 在线视频一区二区日韩国产| 潮喷失禁大喷水无码| 亚洲综合伦理| 国产95在线| 伊人婷婷五月| 国产成人高清亚洲综合| 人人爽亚洲aⅴ人人爽av人人片| 无码孕妇孕交在线观看| 国产精品一区二区久久沈樵| 久久视频这里只精品| 精品国产人妻一区二区三区免费| 欧美福利网| 久久久精品人妻一区二区三区| 成人嫩草研究院久久久精品| av免费网站在线免费观看| 少妇高潮太爽了在线视频| 好硬好湿好爽再深一点动态图视频| 日本丰满护士bbw| [国产剧情]麻豆正在播放| 99热精品毛片全部国产无缓冲| 加勒比中文字幕无码一区| 亚洲日韩第9页|