{"id":934759,"date":"2024-05-14T00:06:56","date_gmt":"2024-05-13T17:06:56","guid":{"rendered":"\/\/www.m88guanwang.com\/?p=934759"},"modified":"2024-06-19T08:40:58","modified_gmt":"2024-06-19T01:40:58","slug":"ky-thuat-han-4g-chuan-cua-chuyen-vien","status":"publish","type":"post","link":"\/\/www.m88guanwang.com\/blog\/ky-thuat-han-4g-chuan-cua-chuyen-vien","title":{"rendered":"K\u1ef9 Thu\u1eadt H\u00e0n 4G Chu\u1ea9n C\u1ee7a Chuy\u00ean Vi\u00ean"},"content":{"rendered":"<p style=\"text-align: justify;\"><span style=\"color: #282828;\"><strong><span style=\"color: #000080;\"><a style=\"color: #000080;\" href=\"\/\/www.m88guanwang.com\/blog\/ky-thuat-han-4g-chuan-cua-chuyen-vien\/\">H\u00e0n 4G l\u00e0 g\u00ec?<\/a><\/span><\/strong> \u0110\u00e2y l\u00e0 ph\u01b0\u01a1ng ph\u00e1p h\u00e0n tr\u00ean \u0111\u1ea7u, th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng khi c\u1ea7n n\u1ed1i gh\u00e9p hai t\u1ea5m kim lo\u1ea1i v\u00e0 th\u1ee3 h\u00e0n th\u01b0\u1eddng ph\u1ea3i ti\u1ebfn h\u00e0nh h\u00e0n t\u1eeb ph\u00eda d\u01b0\u1edbi. V\u1ecb tr\u00ed h\u00e0n n\u00e0y \u0111\u00f2i h\u1ecfi th\u1ee3 h\u00e0n s\u1edf h\u1eefu k\u1ef9 n\u0103ng chuy\u00ean m\u00f4n cao v\u00e0 s\u1ef1 t\u1ec9 m\u1ec9 \u0111\u1ec3 t\u1ea1o ra m\u1ed1i h\u00e0n ch\u1ea5t l\u01b0\u1ee3ng cao, \u0111\u1ea3m b\u1ea3o an to\u00e0n v\u00e0 t\u00ednh th\u1ea9m m\u1ef9. Trong b\u00e0i vi\u1ebft n\u00e0y, qu\u00fd kh\u00e1ch h\u00e0ng h\u00e3y c\u00f9ng chuy\u00ean vi\u00ean c\u1ee7a Nam V\u01b0\u1ee3ng kh\u00e1m ph\u00e1 s\u00e2u h\u01a1n v\u1ec1 h\u00e0n 4G, t\u1eeb \u0111\u1eb7c \u0111i\u1ec3m \u0111\u1ebfn \u1ee9ng d\u1ee5ng v\u00e0 l\u1ee3i \u00edch m\u00e0 n\u00f3 mang l\u1ea1i.<\/span><\/p><div id=\"ez-toc-container\" class=\"ez-toc-v2_0_69_1 counter-hierarchy ez-toc-counter ez-toc-light-blue ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<span class=\"ez-toc-title \" >N\u1ed9i Dung<\/span>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #cc0000;color:#cc0000\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #cc0000;color:#cc0000\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"\/\/www.m88guanwang.com\/blog\/ky-thuat-han-4g-chuan-cua-chuyen-vien\/#Dinh_nghia_chuan_han_4G\" title=\"\u0110\u1ecbnh ngh\u0129a chu\u1ea9n h\u00e0n 4G\">\u0110\u1ecbnh ngh\u0129a chu\u1ea9n h\u00e0n 4G<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"\/\/www.m88guanwang.com\/blog\/ky-thuat-han-4g-chuan-cua-chuyen-vien\/#Dac_diem_cua_chuan_han_4G\" title=\"\u0110\u1eb7c \u0111i\u1ec3m c\u1ee7a chu\u1ea9n h\u00e0n 4G\">\u0110\u1eb7c \u0111i\u1ec3m c\u1ee7a chu\u1ea9n h\u00e0n 4G<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"\/\/www.m88guanwang.com\/blog\/ky-thuat-han-4g-chuan-cua-chuyen-vien\/#Trang_thiet_bi_bao_ho_can_thiet\" title=\"Trang thi\u1ebft b\u1ecb b\u1ea3o h\u1ed9 c\u1ea7n thi\u1ebft\">Trang thi\u1ebft b\u1ecb b\u1ea3o h\u1ed9 c\u1ea7n thi\u1ebft<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"\/\/www.m88guanwang.com\/blog\/ky-thuat-han-4g-chuan-cua-chuyen-vien\/#Ky_thuat_han_chuan_4G\" title=\"K\u1ef9 thu\u1eadt h\u00e0n chu\u1ea9n 4G\">K\u1ef9 thu\u1eadt h\u00e0n chu\u1ea9n 4G<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"\/\/www.m88guanwang.com\/blog\/ky-thuat-han-4g-chuan-cua-chuyen-vien\/#Luu_y_can_biet_trong_qua_trinh_han\" title=\"L\u01b0u \u00fd c\u1ea7n bi\u1ebft trong qu\u00e1 tr\u00ecnh h\u00e0n\">L\u01b0u \u00fd c\u1ea7n bi\u1ebft trong qu\u00e1 tr\u00ecnh h\u00e0n<\/a><\/li><\/ul><\/nav><\/div>\n\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-934738\" src=\"\/\/www.m88guanwang.com\/wp-content\/uploads\/2024\/05\/CHUNG-CHI-HAN-6G.jpg\" alt=\"H\u00e0n 6G\" width=\"800\" height=\"533\" srcset=\"\/\/www.m88guanwang.com\/wp-content\/uploads\/2024\/05\/CHUNG-CHI-HAN-6G.jpg 600w, \/\/www.m88guanwang.com\/wp-content\/uploads\/2024\/05\/CHUNG-CHI-HAN-6G-400x267.jpg 400w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/p>\n<p style=\"text-align: center;\">H\u00ecnh \u1ea3nh: Chuy\u00ean vi\u00ean h\u00e0n 4G<\/p>\n<h2 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"Dinh_nghia_chuan_han_4G\"><\/span><strong><span style=\"color: #282828;\">\u0110\u1ecbnh ngh\u0129a chu\u1ea9n h\u00e0n 4G<\/span><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p style=\"text-align: justify;\"><span style=\"color: #282828;\">Chu\u1ea9n h\u00e0n 4G \u0111\u01b0\u1ee3c quy \u0111\u1ecbnh trong c\u00e1c ti\u00eau chu\u1ea9n h\u00e0n qu\u1ed1c t\u1ebf nh\u01b0 ISO 15613-5:2017 v\u00e0 ASME B31.3. <\/span><span style=\"color: #282828;\">C\u00e1ch h\u00e0n 4F l\u00e0 v\u1ecb tr\u00ed h\u00e0n tr\u1ea7n \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng cho c\u00e1c m\u1ed1i h\u00e0n g\u00f3c. Th\u1ee3 h\u00e0n th\u01b0\u1eddng gi\u1eef ki\u1ec1m h\u00e0n nghi\u00eang 45 \u0111\u1ed9 ph\u00eda d\u01b0\u1edbi v\u1eadt h\u00e0n, t\u00f9y thu\u1ed9c v\u00e0o v\u1ecb tr\u00ed c\u1ee7a v\u1eadt h\u00e0n.<\/span><\/p>\n<h2 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"Dac_diem_cua_chuan_han_4G\"><\/span><strong><span style=\"color: #282828;\">\u0110\u1eb7c \u0111i\u1ec3m c\u1ee7a chu\u1ea9n h\u00e0n 4G<\/span><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul style=\"text-align: justify;\">\n<li><span style=\"color: #282828;\"><em><strong>V\u1ecb tr\u00ed h\u00e0n kh\u00f3:<\/strong><\/em> Do n\u1eb1m tr\u00ean cao, th\u1ee3 h\u00e0n ph\u1ea3i thi c\u00f4ng trong t\u01b0 th\u1ebf kh\u00f3 kh\u0103n, \u0111\u00f2i h\u1ecfi s\u1ef1 linh ho\u1ea1t v\u00e0 kh\u1ea3 n\u0103ng ki\u1ec3m so\u00e1t t\u1ed1t.<\/span><\/li>\n<li><span style=\"color: #282828;\"><em><strong>Nguy c\u01a1 ch\u1ea3y x\u1ec7 m\u1ed1i h\u00e0n:<\/strong><\/em> L\u1ef1c h\u1ea5p d\u1eabn c\u00f3 th\u1ec3 khi\u1ebfn kim lo\u1ea1i n\u00f3ng ch\u1ea3y ch\u1ea3y x\u1ec7, \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn ch\u1ea5t l\u01b0\u1ee3ng m\u1ed1i h\u00e0n.<\/span><\/li>\n<li><span style=\"color: #282828;\"><em><strong>Y\u00eau c\u1ea7u k\u1ef9 thu\u1eadt cao:<\/strong><\/em> Th\u1ee3 h\u00e0n c\u1ea7n c\u00f3 k\u1ef9 n\u0103ng chuy\u00ean m\u00f4n cao, bao g\u1ed3m k\u1ef9 thu\u1eadt di chuy\u1ec3n que h\u00e0n, \u0111i\u1ec1u ch\u1ec9nh d\u00f2ng \u0111i\u1ec7n, t\u1ea1o h\u1ed3 quang v\u00e0 thao t\u00e1c h\u00e0n ch\u00ednh x\u00e1c.<\/span><\/li>\n<\/ul>\n<h3 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"Trang_thiet_bi_bao_ho_can_thiet\"><\/span><strong><span style=\"color: #282828;\">Trang thi\u1ebft b\u1ecb b\u1ea3o h\u1ed9 c\u1ea7n thi\u1ebft<\/span><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"text-align: justify;\"><span style=\"color: #282828;\">\u0110\u1ec3 \u0111\u1ea3m b\u1ea3o an to\u00e0n khi h\u00e0n chu\u1ea9n 4G, th\u1ee3 h\u00e0n c\u1ea7n trang b\u1ecb \u0111\u1ea7y \u0111\u1ee7 c\u00e1c thi\u1ebft b\u1ecb b\u1ea3o h\u1ed9 nh\u01b0:<\/span><\/p>\n<ul style=\"text-align: justify;\">\n<li><span style=\"color: #282828;\"><em><strong>M\u1eb7t n\u1ea1 h\u00e0n:<\/strong> <\/em>B\u1ea3o v\u1ec7 m\u1eaft kh\u1ecfi tia UV v\u00e0 tia s\u00e1ng ch\u00f3i.<\/span><\/li>\n<li><span style=\"color: #282828;\"><em><strong>G\u0103ng tay h\u00e0n:<\/strong><\/em> B\u1ea3o v\u1ec7 tay kh\u1ecfi kim lo\u1ea1i n\u00f3ng ch\u1ea3y v\u00e0 tia l\u1eeda.<\/span><\/li>\n<li><span style=\"color: #282828;\"><em><strong>Qu\u1ea7n \u00e1o b\u1ea3o h\u1ed9:<\/strong><\/em> Che ch\u1eafn da kh\u1ecfi tia l\u1eeda v\u00e0 m\u1ea3nh v\u1ee5n kim lo\u1ea1i.<\/span><\/li>\n<li><span style=\"color: #282828;\"><em><strong>Kh\u1ea9u trang:<\/strong><\/em> Ng\u0103n ng\u1eeba h\u00edt ph\u1ea3i kh\u00f3i b\u1ee5i v\u00e0 kh\u00ed \u0111\u1ed9c h\u1ea1i.<\/span><\/li>\n<li><span style=\"color: #282828;\"><em><strong>Gi\u00e0y b\u1ea3o h\u1ed9:<\/strong><\/em> B\u1ea3o v\u1ec7 ch\u00e2n kh\u1ecfi kim lo\u1ea1i n\u00f3ng ch\u1ea3y v\u00e0 v\u1eadt s\u1eafc nh\u1ecdn.<\/span><\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-934760\" src=\"\/\/www.m88guanwang.com\/wp-content\/uploads\/2024\/05\/image.png\" alt=\"H\u00e0n 4g\" width=\"800\" height=\"753\" \/><\/p>\n<h2 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"Ky_thuat_han_chuan_4G\"><\/span><strong><span style=\"color: #282828;\">K\u1ef9 thu\u1eadt h\u00e0n chu\u1ea9n 4G<\/span><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p style=\"text-align: justify;\"><span style=\"color: #282828;\">\u0110\u1ec3 th\u1ef1c hi\u1ec7n h\u00e0n chu\u1ea9n 4G hi\u1ec7u qu\u1ea3, th\u1ee3 h\u00e0n c\u1ea7n l\u01b0u \u00fd m\u1ed9t s\u1ed1 k\u1ef9 thu\u1eadt sau:<\/span><\/p>\n<ul style=\"text-align: justify;\">\n<li><span style=\"color: #282828;\"><strong>Chu\u1ea9n b\u1ecb b\u1ec1 m\u1eb7t h\u00e0n k\u1ef9 l\u01b0\u1ee1ng:<\/strong> B\u1ec1 m\u1eb7t h\u00e0n c\u1ea7n \u0111\u01b0\u1ee3c l\u00e0m s\u1ea1ch, lo\u1ea1i b\u1ecf t\u1ea1p ch\u1ea5t, r\u1ec9 s\u00e9t \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng m\u1ed1i h\u00e0n.<\/span><\/li>\n<li><span style=\"color: #282828;\"><strong>L\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u h\u00e0n ph\u00f9 h\u1ee3p:<\/strong> L\u1ef1a ch\u1ecdn que h\u00e0n, d\u00e2y h\u00e0n v\u00e0 kh\u00ed b\u1ea3o v\u1ec7 ph\u00f9 h\u1ee3p v\u1edbi lo\u1ea1i v\u1eadt li\u1ec7u h\u00e0n v\u00e0 y\u00eau c\u1ea7u k\u1ef9 thu\u1eadt.<\/span><\/li>\n<li><span style=\"color: #282828;\"><strong>S\u1eed d\u1ee5ng \u0111\u00fang t\u01b0 th\u1ebf h\u00e0n:<\/strong> Th\u1ee3 h\u00e0n c\u1ea7n s\u1eed d\u1ee5ng t\u01b0 th\u1ebf h\u00e0n ph\u00f9 h\u1ee3p, tho\u1ea3i m\u00e1i \u0111\u1ec3 thao t\u00e1c ch\u00ednh x\u00e1c v\u00e0 an to\u00e0n.<\/span><\/li>\n<li><span style=\"color: #282828;\"><strong>K\u1ef9 thu\u1eadt di chuy\u1ec3n que h\u00e0n:<\/strong> Di chuy\u1ec3n que h\u00e0n \u0111\u1ec1u \u0111\u1eb7n, t\u1ed1c \u0111\u1ed9 ph\u00f9 h\u1ee3p \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o m\u1ed1i h\u00e0n \u0111\u1ec1u v\u00e0 \u0111\u1eb9p.<\/span><\/li>\n<li><strong><span style=\"color: #282828;\">\u0110i\u1ec1u ch\u1ec9nh d\u00f2ng h\u00e0n: <\/span><\/strong><span style=\"color: #282828;\">V\u1edbi ph\u01b0\u01a1ng ph\u00e1p h\u00e0n tr\u1ea7n n\u00ean \u0111\u1ec3 d\u00f2ng \u0111i\u1ec7n m\u00e1y h\u00e0n \u0111i\u1ec7n th\u1ea5p h\u01a1n kho\u1ea3ng 10 &#8211; 15A so v\u1edbi h\u00e0n b\u1eb1ng, tr\u00e1nh \u0111\u1ec3 d\u00f2ng h\u00e0n th\u1ea5p qu\u00e1, m\u1ed1i h\u00e0n s\u1ebd kh\u00f4ng ng\u1ea5u, m\u00e0 d\u00f2ng h\u00e0n cao qu\u00e1 th\u00ec m\u1ed1i h\u00e0n s\u1ebd b\u1ecb ch\u1ea3y x\u1ec7, v\u00ec v\u1eady vi\u1ec7c ch\u1ec9nh d\u00f2ng h\u00e0n khi h\u00e0n tr\u1ea7n c\u0169ng c\u1ea7n ph\u1ea3i \u0111\u01b0\u1ee3c ch\u00fa \u00fd.<\/span><\/li>\n<li><span style=\"color: #282828;\"><strong>K\u1ef9 thu\u1eadt t\u1ea1o h\u1ed3 quang:<\/strong> Duy tr\u00ec h\u1ed3 quang \u1ed5n \u0111\u1ecbnh \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng m\u1ed1i h\u00e0n.<\/span><\/li>\n<li><strong><span style=\"color: #282828;\">Dao \u0111\u1ed9ng \u0111\u01b0\u1eddng h\u00e0n: <\/span><\/strong><span style=\"color: #282828;\">H\u00e0n 4G theo t\u01b0 th\u1ebf h\u00e0n r\u0103ng c\u01b0a ho\u1eb7c v\u00f2ng tr\u00f2n l\u1ec7ch, s\u1ebd gi\u00fap kh\u1ed1ng ch\u1ebf \u0111\u01b0\u1ee3c t\u00ednh l\u01b0u \u0111\u1ed9ng c\u1ee7a kim lo\u1ea1i n\u00f3ng ch\u1ea3y v\u00e0 kh\u1ed1ng ch\u1ebf \u0111\u01b0\u1ee3c \u0111\u1ed9 r\u1ed9ng cho m\u1ed1i h\u00e0n \u1edf m\u1ee9c c\u1ea7n thi\u1ebft, n\u00ean t\u1ea1o h\u00ecnh m\u1ed1i h\u00e0n 4G \u0111\u01b0\u1ee3c t\u1ed1t h\u01a1n.<\/span><\/li>\n<li><span style=\"color: #282828;\"><strong>Ch\u00fa \u00fd ph\u00f2ng ng\u1eeba khuy\u1ebft t\u1eadt h\u00e0n:<\/strong> Quan s\u00e1t v\u00e0 x\u1eed l\u00fd k\u1ecbp th\u1eddi c\u00e1c khuy\u1ebft t\u1eadt h\u00e0n nh\u01b0 r\u1ed7 kh\u00ed, khe h\u1edf, ng\u1eadm s\u1ec9.<\/span><\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-934761 aligncenter\" src=\"\/\/www.m88guanwang.com\/wp-content\/uploads\/2024\/05\/image-1.png\" alt=\"h\u00e0n 4g\" width=\"870\" height=\"490\" srcset=\"\/\/www.m88guanwang.com\/wp-content\/uploads\/2024\/05\/image-1.png 870w, \/\/www.m88guanwang.com\/wp-content\/uploads\/2024\/05\/image-1-400x225.png 400w, \/\/www.m88guanwang.com\/wp-content\/uploads\/2024\/05\/image-1-768x433.png 768w, \/\/www.m88guanwang.com\/wp-content\/uploads\/2024\/05\/image-1-600x338.png 600w\" sizes=\"auto, (max-width: 870px) 100vw, 870px\" \/><\/p>\n<p style=\"text-align: center;\">H\u00ecnh \u1ea3nh: M\u00f4 t\u1ea3 h\u00e0n 4G<\/p>\n<h2 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"Luu_y_can_biet_trong_qua_trinh_han\"><\/span><strong><span style=\"color: #282828;\">L\u01b0u \u00fd c\u1ea7n bi\u1ebft trong qu\u00e1 tr\u00ecnh h\u00e0n<\/span><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p style=\"text-align: justify;\"><span style=\"color: #282828;\">\u0110\u1ec3 \u0111\u1ea3m b\u1ea3o an to\u00e0n trong qu\u00e1 tr\u00ecnh h\u00e0n, ngo\u00e0i vi\u1ec7c n\u1eafm v\u1eefng k\u1ef9 thu\u1eadt h\u00e0n, ph\u00e2n bi\u1ec7t h\u00e0n 4G l\u00e0 g\u00ec th\u00ec ng\u01b0\u1eddi th\u1ee3 c\u1ea7n l\u01b0u \u00fd nh\u1eefng \u0111i\u1ec1u sau:<\/span><\/p>\n<ul style=\"text-align: justify;\">\n<li><span style=\"color: #282828;\">Lu\u00f4n ki\u1ec3m tra an to\u00e0n khu v\u1ef1c h\u00e0n v\u00e0 c\u00e1c thi\u1ebft b\u1ecb tr\u01b0\u1edbc khi b\u1eaft \u0111\u1ea7u c\u00f4ng vi\u1ec7c, bao g\u1ed3m h\u1ec7 th\u1ed1ng \u0111i\u1ec7n, m\u00e1y h\u00e0n, v\u00e0 d\u00e2y c\u00e1p h\u00e0n v\u00e0 \u0111<\/span><span style=\"color: #282828;\">\u1ea3m b\u1ea3o s\u1eed d\u1ee5ng \u0111\u1ea7y \u0111\u1ee7 trang thi\u1ebft b\u1ecb b\u1ea3o h\u1ed9 lao \u0111\u1ed9ng.<\/span><\/li>\n<li><span style=\"color: #282828;\">Ch\u1ecdn n\u01a1i l\u00e0m vi\u1ec7c tho\u00e1ng \u0111\u00e3ng v\u00e0 c\u00f3 qu\u1ea1t th\u00f4ng gi\u00f3 \u0111\u1ec3 gi\u1ea3m \u00f4 nhi\u1ec5m khi que h\u00e0n ch\u00e1y t\u1ea1o ra kh\u00ed \u0111\u1ed9c v\u00e0 b\u1ee5i (nh\u01b0 b\u1ee5i mangan, oxit k\u00e9m&#8230;).<\/span><\/li>\n<li><span style=\"color: #282828;\">Trong c\u00e1c v\u1ecb tr\u00ed h\u00e0n kh\u00f3 kh\u0103n ho\u1eb7c k\u00edn, nh\u01b0 trong \u1ed1ng, th\u00f9ng k\u00edn, c\u1ea7n \u0111\u1ea3m b\u1ea3o vi\u1ec7c th\u00f4ng gi\u00f3 \u0111\u1ec3 tr\u00e1nh nguy c\u01a1 tr\u00fang \u0111\u1ed9c h\u01a1i h\u00e0n v\u00e0 lu\u00f4n c\u00f3 ng\u01b0\u1eddi gi\u00e1m s\u00e1t.<\/span><\/li>\n<li><span style=\"color: #282828;\">Ng\u01b0\u1eddi c\u00f3 ti\u1ec1n s\u1eed b\u1ec7nh l\u00fd v\u1ec1 tim, ph\u1ed5i&#8230; kh\u00f4ng n\u00ean h\u00e0n trong c\u00e1c kh\u00f4ng gian k\u00edn nh\u01b0 th\u00f9ng k\u00edn.<\/span><\/li>\n<li><span style=\"color: #282828;\">Tr\u01b0\u1edbc khi h\u00e0n, c\u1ea7n x\u00fac s\u1ea1ch v\u00e0 m\u1edf n\u1eafp c\u00e1c b\u00ecnh ch\u1ee9a ch\u1ea5t d\u1ec5 ch\u00e1y n\u1ed5. Tuy\u1ec7t \u0111\u1ed1i kh\u00f4ng h\u00e0n c\u00e1c v\u1eadt ch\u1ee9a \u00e1p l\u1ef1c ho\u1eb7c ch\u1ea5t l\u1ecfng cao \u00e1p.<\/span><\/li>\n<li><span style=\"color: #282828;\">Khi h\u00e0n \u1edf \u0111\u1ed9 cao, c\u1ea7n \u0111eo d\u00e2y an to\u00e0n b\u1ea3o hi\u1ec3m. Khi c\u1eaft c\u00e1c d\u1ea7m x\u00e0 th\u00ec c\u1ea7n ch\u00fa \u00fd bu\u1ed9c ch\u1eb7t ph\u1ea7n c\u1eaft \u0111\u1ec3 tr\u00e1nh r\u01a1i xu\u1ed1ng g\u00e2y tai n\u1ea1n.<\/span><\/li>\n<li><span style=\"color: #282828;\">Khi k\u1ebft th\u00fac c\u00f4ng vi\u1ec7c, b\u1eaft bu\u1ed9c ng\u1eaft c\u1ea7u dao c\u1ee7a m\u00e1y h\u00e0n \u0111i\u1ec7n v\u00e0 c\u1ea7u dao ch\u00ednh.<\/span><\/li>\n<\/ul>\n<p style=\"text-align: justify;\"><span style=\"color: #282828;\">Hy v\u1ecdng b\u00e0i vi\u1ebft n\u00e0y \u0111\u00e3 cung c\u1ea5p cho b\u1ea1n th\u00f4ng tin h\u1eefu \u00edch v\u1ec1 chu\u1ea9n h\u00e0n 4G, gi\u00fap b\u1ea1n hi\u1ec3u r\u00f5 h\u01a1n v\u1ec1 v\u1ecb tr\u00ed h\u00e0n tr\u00ean cao, \u0111\u1eb7c \u0111i\u1ec3m, \u1ee9ng d\u1ee5ng v\u00e0 k\u1ef9 thu\u1eadt h\u00e0n chu\u1ea9n 4G \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o an to\u00e0n v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng cho c\u00f4ng vi\u1ec7c.<\/span><\/p>\n<p>C\u1ea3m \u01a1n b\u1ea1n \u0111\u00e3 \u0111\u1ecdc b\u00e0i vi\u1ebft. Ch\u00fang t\u00f4i r\u1ea5t c\u1ea3m \u01a1n s\u1ef1 \u1ee7ng h\u1ed9 c\u1ee7a b\u1ea1n! H\u00e3y cho ch\u00fang t\u00f4i th\u00eam \u00edt ph\u00fat \u0111\u1ec3 chia s\u1ebb c\u1ea3m x\u00fac c\u1ee7a b\u1ea1n tr\u00ean k\u00eanh <strong>Google Business<\/strong> c\u1ee7a <span style=\"color: #ed1c24;\"><strong>M\u00e1y H\u00e0n Nam V\u01b0\u1ee3ng<\/strong><\/span> nh\u00e9!<br \/>\n<div class=\"row\"  id=\"row-1312422432\">\r\n\r\n\n\t<div id=\"col-413344761\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner text-center\"  >\n\t\t\t\n\t\t\t\r\n\r\n<a href=\"https:\/\/www.google.com\/maps\/place\/M%C3%81Y+H%C3%80N+NAM+V%C6%AF%E1%BB%A2NG\/@21.1104481,105.9456002,15z\/data=!4m2!3m1!1s0x0:0xc7a357f7038337a0?sa=X&#038;ved=1t:2428&#038;hl=vi&#038;ictx=111\" target=\"_blank\" class=\"button primary is-shade box-shadow-3 box-shadow-5-hover\" rel=\"noopener\"  style=\"border-radius:5px;\">\n\t\t<span>\u0110\u00e1nh gi\u00e1 tr\u00ean google Map<\/span>\n\t<i class=\"icon-map-pin-fill\" aria-hidden=\"true\" ><\/i><\/a>\n\r\n\r\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\r\n\r\n<\/div>\n<div class=\"ddict_btn\" style=\"top: 30px; left: 100.688px;\"><img decoding=\"async\" src=\"chrome-extension:\/\/bpggmmljdiliancllaapiggllnkbjocb\/logo\/48.png\" \/><\/div>\n\n\n<div class=\"kk-star-ratings kksr-auto kksr-align-right kksr-valign-bottom\"\n    data-payload='{&quot;align&quot;:&quot;right&quot;,&quot;id&quot;:&quot;934759&quot;,&quot;slug&quot;:&quot;default&quot;,&quot;valign&quot;:&quot;bottom&quot;,&quot;ignore&quot;:&quot;&quot;,&quot;reference&quot;:&quot;auto&quot;,&quot;class&quot;:&quot;&quot;,&quot;count&quot;:&quot;0&quot;,&quot;legendonly&quot;:&quot;&quot;,&quot;readonly&quot;:&quot;&quot;,&quot;score&quot;:&quot;0&quot;,&quot;starsonly&quot;:&quot;&quot;,&quot;best&quot;:&quot;5&quot;,&quot;gap&quot;:&quot;5&quot;,&quot;greet&quot;:&quot;Rate this post&quot;,&quot;legend&quot;:&quot;0\\\/5 - (0 b\u00ecnh ch\u1ecdn)&quot;,&quot;size&quot;:&quot;24&quot;,&quot;title&quot;:&quot;K\u1ef9 Thu\u1eadt H\u00e0n 4G Chu\u1ea9n C\u1ee7a Chuy\u00ean Vi\u00ean&quot;,&quot;width&quot;:&quot;0&quot;,&quot;_legend&quot;:&quot;{score}\\\/{best} - ({count} {votes})&quot;,&quot;font_factor&quot;:&quot;1.25&quot;}'>\n            \n<div class=\"kksr-stars\">\n    \n<div class=\"kksr-stars-inactive\">\n            <div class=\"kksr-star\" data-star=\"1\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"2\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"3\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"4\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"5\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n    <\/div>\n    \n<div class=\"kksr-stars-active\" style=\"width: 0px;\">\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n    <\/div>\n<\/div>\n                \n\n<div class=\"kksr-legend\" style=\"font-size: 19.2px;\">\n            <span class=\"kksr-muted\">Rate this post<\/span>\n    <\/div>\n    <\/div>\n","protected":false},"excerpt":{"rendered":"<p>H\u00e0n 4G l\u00e0 g\u00ec? \u0110\u00e2y l\u00e0 ph\u01b0\u01a1ng ph\u00e1p h\u00e0n tr\u00ean \u0111\u1ea7u, th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng khi c\u1ea7n n\u1ed1i gh\u00e9p hai t\u1ea5m kim lo\u1ea1i v\u00e0 th\u1ee3 h\u00e0n th\u01b0\u1eddng ph\u1ea3i ti\u1ebfn h\u00e0nh h\u00e0n t\u1eeb ph\u00eda d\u01b0\u1edbi. V\u1ecb tr\u00ed h\u00e0n n\u00e0y \u0111\u00f2i h\u1ecfi th\u1ee3 h\u00e0n s\u1edf h\u1eefu k\u1ef9 n\u0103ng chuy\u00ean m\u00f4n cao v\u00e0 s\u1ef1 t\u1ec9 m\u1ec9 \u0111\u1ec3 t\u1ea1o&#8230;<\/p>\n","protected":false},"author":4,"featured_media":934771,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[46],"tags":[],"class_list":["post-934759","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tin-tuc"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>K\u1ef9 Thu\u1eadt H\u00e0n 4G Chu\u1ea9n C\u1ee7a Chuy\u00ean Vi\u00ean - M\u00e1y h\u00e0n Nam V\u01b0\u1ee3ng<\/title>\n<meta name=\"description\" content=\"B\u00e0i vi\u1ebft gi\u00fap b\u1ea1n bi\u1ebft th\u00f4ng tin v\u1ec1 chu\u1ea9n h\u00e0n 4G, gi\u00fap b\u1ea1n hi\u1ec3u r\u00f5 h\u01a1n k\u1ef9 thu\u1eadt h\u00e0n chu\u1ea9n 4G \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o an to\u00e0n v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng cho c\u00f4ng vi\u1ec7c.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"\/\/www.m88guanwang.com\/blog\/ky-thuat-han-4g-chuan-cua-chuyen-vien\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"K\u1ef9 Thu\u1eadt H\u00e0n 4G Chu\u1ea9n C\u1ee7a Chuy\u00ean Vi\u00ean - 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