{"id":4817,"date":"2025-09-29T11:12:00","date_gmt":"2025-09-29T11:12:00","guid":{"rendered":"https:\/\/lp.szlogic.cn\/glossary\/what-to-know-about-receiver-sensitivity-for-devices\/"},"modified":"2026-06-22T06:37:25","modified_gmt":"2026-06-22T06:37:25","slug":"what-to-know-about-receiver-sensitivity-for-devices","status":"publish","type":"post","link":"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/what-to-know-about-receiver-sensitivity-for-devices","title":{"rendered":"B\u1ea1n C\u1ea7n Bi\u1ebft G\u00ec V\u1ec1 \u0110\u1ed9 Nh\u1ea1y B\u1ed9 Thu"},"content":{"rendered":"<figure class=\"wp-block-image aligncenter size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1312\" height=\"736\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/8b5d0dfa5a3a4e70be0ba2787e658131.webp\" alt=\"What Should You Know About Receiver Sensitivity\" class=\"wp-image-4815\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/8b5d0dfa5a3a4e70be0ba2787e658131.webp 1312w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/8b5d0dfa5a3a4e70be0ba2787e658131-300x168.webp 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/8b5d0dfa5a3a4e70be0ba2787e658131-1024x574.webp 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/8b5d0dfa5a3a4e70be0ba2787e658131-768x431.webp 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/8b5d0dfa5a3a4e70be0ba2787e658131-18x10.webp 18w\" sizes=\"(max-width: 1312px) 100vw, 1312px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Trong th\u1ebf gi\u1edbi si\u00eau k\u1ebft n\u1ed1i c\u1ee7a ch\u00fang ta, ch\u00fang ta \u0111\u00f2i h\u1ecfi vi\u1ec7c truy\u1ec1n d\u1eef li\u1ec7u ho\u00e0n h\u1ea3o\u2014t\u1eeb ph\u00e1t tr\u1ef1c tuy\u1ebfn video 4K \u0111\u1ebfn th\u1ef1c hi\u1ec7n c\u00e1c giao d\u1ecbch t\u1ea7n s\u1ed1 cao. Nh\u01b0ng b\u1ea1n \u0111\u00e3 bao gi\u1edd t\u1ef1 h\u1ecfi l\u00e0m th\u1ebf n\u00e0o thi\u1ebft b\u1ecb c\u1ee7a m\u00ecnh c\u00f3 th\u1ec3 gi\u1ea3i m\u00e3 m\u1ed9t c\u00e1ch \u0111\u00e1ng tin c\u1eady nh\u1eefng th\u00ec th\u1ea7m y\u1ebfu \u1edbt nh\u1ea5t c\u1ee7a d\u1eef li\u1ec7u gi\u1eefa m\u1ed9t h\u1ed7n \u0111\u1ed9n ti\u1ebfng \u1ed3n \u0111i\u1ec7n t\u1eed? Ng\u01b0\u1eddi h\u00f9ng th\u1ea7m l\u1eb7ng trong quy tr\u00ecnh n\u00e0y l\u00e0 <strong>\u0110\u1ed9 nh\u1ea1y b\u1ed9 thu<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tham s\u1ed1 then ch\u1ed1t n\u00e0y l\u00e0 n\u1ec1n t\u1ea3ng c\u1ee7a m\u1ecdi h\u1ec7 th\u1ed1ng truy\u1ec1n th\u00f4ng, \u0111\u1eb7c bi\u1ec7t trong l\u0129nh v\u1ef1c trung t\u00e2m d\u1eef li\u1ec7u t\u1ed1c \u0111\u1ed9 cao v\u00e0 vi\u1ec5n th\u00f4ng. Vi\u1ec7c hi\u1ec3u s\u00e2u v\u1ec1 \u0111\u1ed9 nh\u1ea1y b\u1ed9 thu kh\u00f4ng ch\u1ec9 d\u00e0nh ri\u00eang cho k\u1ef9 s\u01b0; \u0111\u00e2y l\u00e0 y\u1ebfu t\u1ed1 thi\u1ebft y\u1ebfu \u0111\u1ed1i v\u1edbi b\u1ea5t k\u1ef3 ai \u0111\u01b0a ra quy\u1ebft \u0111\u1ecbnh s\u00e1ng su\u1ed1t v\u1ec1 c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng m\u1ea1ng c\u1ee7a m\u00ecnh. Trong b\u00e0i vi\u1ebft n\u00e0y, ch\u00fang ta s\u1ebd kh\u00e1m ph\u00e1 n\u00f3 l\u00e0 g\u00ec, t\u1ea1i sao n\u00f3 quan tr\u1ecdng v\u00e0 vai tr\u00f2 then ch\u1ed1t c\u1ee7a n\u00f3 trong <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-25432-optics-transceivers-sfp-modules.htm\"><strong>b\u1ed9 thu ph\u00e1t quang t\u1ed1c \u0111\u1ed9 cao<\/strong><\/a>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u26a1 T\u00f3m t\u1eaft tr\u1ecdng t\u00e2m<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>\u0110\u1ed9 nh\u1ea1y b\u1ed9 thu<\/strong> cho th\u1ea5y t\u00edn hi\u1ec7u y\u1ebfu nh\u1ea5t m\u00e0 thi\u1ebft b\u1ecb c\u1ee7a b\u1ea1n c\u00f3 th\u1ec3 nh\u1eadn \u0111\u01b0\u1ee3c. \u0110\u1ed9 nh\u1ea1y t\u1ed1t mang l\u1ea1i k\u1ebft n\u1ed1i m\u1ea1nh h\u01a1n, ngay c\u1ea3 khi t\u00edn hi\u1ec7u y\u1ebfu.<\/p><\/li><li><p>Lu\u00f4n ki\u1ec3m tra gi\u00e1 tr\u1ecb dBm trong th\u00f4ng tin chi ti\u1ebft s\u1ea3n ph\u1ea9m. Gi\u00e1 tr\u1ecb dBm c\u00e0ng th\u1ea5p th\u00ec \u0111\u1ed9 nh\u1ea1y b\u1ed9 thu c\u00e0ng t\u1ed1t. \u0110i\u1ec1u n\u00e0y gi\u00fap b\u1ea1n ch\u1ecdn \u0111\u01b0\u1ee3c thi\u1ebft b\u1ecb ph\u00f9 h\u1ee3p nh\u1ea5t.<\/p><\/li><li><p>C\u00e2n nh\u1eafc c\u00e1c y\u1ebfu t\u1ed1 nh\u01b0 nhi\u1ec5u, b\u0103ng th\u00f4ng v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng ph\u1ea7n c\u1ee9ng. Nhi\u1ec5u \u00edt h\u01a1n v\u00e0 c\u1ea5u h\u00ecnh t\u1ed1t h\u01a1n c\u00f3 th\u1ec3 gi\u00fap thi\u1ebft b\u1ecb c\u1ee7a b\u1ea1n ho\u1ea1t \u0111\u1ed9ng hi\u1ec7u qu\u1ea3 h\u01a1n.<\/p><\/li><li><p>Thay \u0111\u1ed5i ph\u1ea7n c\u1ee9ng thi\u1ebft b\u1ecb n\u1ebfu c\u1ea7n thi\u1ebft. M\u1ed9t \u0103ng-ten t\u1ed1t h\u01a1n ho\u1eb7c b\u1ed9 khu\u1ebfch \u0111\u1ea1i \u0111\u1ed9 nhi\u1ec5u th\u1ea5p (LNA) c\u00f3 th\u1ec3 gi\u00fap thi\u1ebft b\u1ecb c\u1ee7a b\u1ea1n thu t\u00edn hi\u1ec7u t\u1ed1t h\u01a1n v\u00e0 c\u1ea3i thi\u1ec7n \u0111\u1ed9 nh\u1ea1y.<\/p><\/li><li><p>S\u1eed d\u1ee5ng \u0111\u1ed9 nh\u1ea1y b\u1ed9 thu \u0111\u1ec3 ng\u0103n ng\u1eeba c\u00e1c s\u1ef1 c\u1ed1 k\u1ebft n\u1ed1i. Hi\u1ec3u r\u00f5 \u0111i\u1ec1u n\u00e0y gi\u00fap b\u1ea1n l\u1ef1a ch\u1ecdn thi\u1ebft b\u1ecb ho\u1ea1t \u0111\u1ed9ng t\u1ed1t trong m\u00f4i tr\u01b0\u1eddng s\u1eed d\u1ee5ng th\u1ef1c t\u1ebf.<\/p><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u26a1 \u0110\u1ed9 Nh\u1ea1y B\u1ed9 Thu Ch\u00ednh X\u00e1c L\u00e0 G\u00ec?<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t c\u00e1ch \u0111\u01a1n gi\u1ea3n, <strong>\u0110\u1ed9 nh\u1ea1y b\u1ed9 thu<\/strong> l\u00e0 c\u00f4ng su\u1ea5t quang nh\u1eadn \u0111\u01b0\u1ee3c t\u1ed1i thi\u1ec3u y\u00eau c\u1ea7u t\u1ea1i \u0111\u1ea7u v\u00e0o c\u1ee7a b\u1ed9 thu \u0111\u1ec3 h\u1ec7 th\u1ed1ng \u0111\u1ea1t \u0111\u01b0\u1ee3c m\u1ee9c hi\u1ec7u n\u0103ng x\u00e1c \u0111\u1ecbnh, th\u01b0\u1eddng \u0111\u01b0\u1ee3c \u0111\u1ecbnh ngh\u0129a b\u1edfi m\u1ed9t t\u1ef7 l\u1ec7 l\u1ed7i bit t\u1ed1i \u0111a <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/understanding-what-is-bit-error-rate\/\"><strong>T\u1ef7 l\u1ec7 L\u1ed7i Bit (BER)<\/strong><\/a>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">H\u00e3y t\u01b0\u1edfng t\u01b0\u1ee3ng \u0111i\u1ec1u n\u00e0y gi\u1ed1ng nh\u01b0 vi\u1ec7c nghe m\u1ed9t \u0111\u00e0i ph\u00e1t thanh \u1edf xa. N\u1ebfu t\u00edn hi\u1ec7u qu\u00e1 y\u1ebfu (d\u01b0\u1edbi \u0111\u1ed9 nh\u1ea1y c\u1ee7a b\u1ed9 thu), b\u1ea1n ch\u1ec9 nghe th\u1ea5y ti\u1ebfng r\u00e8. \u0110\u1ed9 nh\u1ea1y b\u1ed9 thu l\u00e0 m\u1ee9c c\u01b0\u1eddng \u0111\u1ed9 t\u00edn hi\u1ec7u y\u1ebfu nh\u1ea5t m\u00e0 \u201c\u0111\u00e0i ph\u00e1t thanh\u201d c\u1ee7a b\u1ea1n (ho\u1eb7c b\u1ed9 thu quang) c\u00f3 th\u1ec3 hi\u1ec3u r\u00f5 r\u00e0ng.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p style=\"margin: 0px;\"><strong>\u0110\u01a1n v\u1ecb \u0111o l\u01b0\u1eddng:<\/strong> N\u00f3 \u0111\u01b0\u1ee3c \u0111o b\u1eb1ng <strong>decibel so v\u1edbi m\u1ed9t milliwatt (dBm)<\/strong>. Gi\u00e1 tr\u1ecb dBm \u00e2m c\u00e0ng l\u1edbn th\u00ec <em>t\u1ed1t h\u01a1n<\/em> (nh\u1ea1y h\u01a1n) b\u1ed9 thu. V\u00ed d\u1ee5, \u0111\u1ed9 nh\u1ea1y -28 dBm v\u01b0\u1ee3t tr\u1ed9i h\u01a1n -24 dBm.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>M\u1ed1i li\u00ean h\u1ec7 v\u1edbi BER:<\/strong> Hi\u1ec7u n\u0103ng \u0111\u01b0\u1ee3c n\u00eau r\u00f5 g\u1ea7n nh\u01b0 lu\u00f4n g\u1eafn li\u1ec1n v\u1edbi <strong>T\u1ef7 l\u1ec7 l\u1ed7i bit<\/strong>, t\u1ee9c l\u00e0 t\u1ef7 l\u1ec7 l\u1ed7i bit tr\u00ean t\u1ed5ng s\u1ed1 bit \u0111\u01b0\u1ee3c truy\u1ec1n. M\u1ed9t ti\u00eau chu\u1ea9n ph\u1ed5 bi\u1ebfn l\u00e0 BER b\u1eb1ng 10\u207b\u00b9\u00b2, ngh\u0129a l\u00e0 m\u1ed9t l\u1ed7i tr\u00ean m\u1ed7i m\u1ed9t ngh\u00ecn t\u1ef7 bit.<\/p><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u26a1 T\u1ea1i Sao \u0110\u1ed9 Nh\u1ea1y B\u1ed9 Thu L\u00e0 M\u1ed9t Th\u00f4ng S\u1ed1 Hi\u1ec7u N\u0103ng Kh\u00f4ng Th\u1ec3 Th\u01b0\u01a1ng L\u01b0\u1ee3ng<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1ecf qua \u0111\u1ed9 nh\u1ea1y b\u1ed9 thu gi\u1ed1ng nh\u01b0 x\u00e2y d\u1ef1ng m\u1ed9t chi\u1ebfc xe th\u1ec3 thao v\u1edbi \u0111\u1ed9ng c\u01a1 y\u1ebfu. T\u00e1c \u0111\u1ed9ng c\u1ee7a n\u00f3 r\u1ea5t s\u00e2u r\u1ed9ng:<\/p>\n\n\n\n<ol class=\"wp-block-list\" >\n<li><p style=\"margin: 0px;\"><strong>M\u1edf r\u1ed9ng ph\u1ea1m vi m\u1ea1ng:<\/strong> \u0110\u1ed9 nh\u1ea1y cao h\u01a1n (gi\u00e1 tr\u1ecb dBm \u00e2m l\u1edbn h\u01a1n) cho ph\u00e9p t\u00edn hi\u1ec7u truy\u1ec1n \u0111i xa h\u01a1n tr\u00ean s\u1ee3i quang tr\u01b0\u1edbc khi c\u1ea7n t\u00e1i t\u1ea1o ho\u1eb7c khu\u1ebfch \u0111\u1ea1i. \u0110i\u1ec1u n\u00e0y tr\u1ef1c ti\u1ebfp l\u00e0m gi\u1ea3m chi ph\u00ed c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>C\u1ea3i thi\u1ec7n t\u00ednh to\u00e0n v\u1eb9n t\u00edn hi\u1ec7u v\u00e0 gi\u1ea3m l\u1ed7i:<\/strong> M\u1ed9t b\u1ed9 thu nh\u1ea1y c\u00f3 th\u1ec3 ph\u00e1t hi\u1ec7n ch\u00ednh x\u00e1c c\u00e1c t\u00edn hi\u1ec7u y\u1ebfu h\u01a1n, d\u1eabn \u0111\u1ebfn BER th\u1ea5p h\u01a1n v\u00e0 vi\u1ec7c truy\u1ec1n d\u1eef li\u1ec7u \u0111\u00e1ng tin c\u1eady h\u01a1n.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>N\u00e2ng cao ng\u00e2n s\u00e1ch c\u00f4ng su\u1ea5t:<\/strong> \u0110\u00e2y l\u00e0 th\u00e0nh ph\u1ea7n then ch\u1ed1t trong <strong>ng\u00e2n s\u00e1ch c\u00f4ng su\u1ea5t quang<\/strong>. c\u1ee7a h\u1ec7 th\u1ed1ng. \u0110\u1ed9 nh\u1ea1y b\u1ed9 thu t\u1ed1t h\u01a1n cung c\u1ea5p th\u00eam kho\u1ea3ng d\u1ef1 ph\u00f2ng cho c\u00e1c t\u1ed5n hao kh\u00e1c trong h\u1ec7 th\u1ed1ng, ch\u1eb3ng h\u1ea1n nh\u01b0 t\u1ed5n hao t\u1ea1i \u0111\u1ea7u n\u1ed1i v\u00e0 suy hao s\u1ee3i quang.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>B\u1ea3o \u0111\u1ea3m t\u00ednh t\u01b0\u01a1ng lai cho m\u1ea1ng c\u1ee7a b\u1ea1n:<\/strong> Khi t\u1ed1c \u0111\u1ed9 d\u1eef li\u1ec7u t\u0103ng l\u00ean (t\u1eeb 10G l\u00ean 100G, 400G v\u00e0 cao h\u01a1n n\u1eefa), t\u00edn hi\u1ec7u v\u1ed1n d\u0129 tr\u1edf n\u00ean y\u1ebfu h\u01a1n. C\u00e1c b\u1ed9 thu \u0111\u1ed9 nh\u1ea1y cao l\u00e0 y\u1ebfu t\u1ed1 thi\u1ebft y\u1ebfu \u0111\u1ec3 h\u1ed7 tr\u1ee3 c\u00e1c \u1ee9ng d\u1ee5ng th\u1ebf h\u1ec7 m\u1edbi.<\/p><\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u26a1 C\u00e1c Y\u1ebfu T\u1ed1 Ch\u00ednh \u1ea2nh H\u01b0\u1edfng \u0110\u1ebfn \u0110\u1ed9 Nh\u1ea1y B\u1ed9 Thu<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Nhi\u1ec1u y\u1ebfu t\u1ed1 x\u00e1c \u0111\u1ecbnh m\u1ee9c \u0111\u1ed9 nh\u1ea1y m\u00e0 m\u1ed9t b\u1ed9 thu c\u00f3 th\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p style=\"margin: 0px;\"><strong>H\u1ec7 s\u1ed1 nhi\u1ec5u (Noise Figure):<\/strong> Nhi\u1ec5u n\u1ed9i sinh do c\u00e1c th\u00e0nh ph\u1ea7n b\u00ean trong b\u1ed9 thu t\u1ea1o ra. Nhi\u1ec5u c\u00e0ng th\u1ea5p th\u00ec c\u00e0ng t\u1ed1t.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>Lo\u1ea1i b\u1ed9 d\u00f2 quang:<\/strong> Hi\u1ec7u su\u1ea5t c\u1ee7a <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/pin-apd-photodiode-technologies-applications\/\"><strong>\u0111i-\u1ed1t quang<\/strong><\/a> (v\u00ed d\u1ee5: PIN so v\u1edbi APD) trong vi\u1ec7c chuy\u1ec3n \u0111\u1ed5i \u00e1nh s\u00e1ng th\u00e0nh d\u00f2ng \u0111i\u1ec7n. <strong>\u0110i\u1ed1t quang th\u00e1c l\u0169 (Avalanche Photodiodes \u2013 APDs)<\/strong> n\u1ed5i ti\u1ebfng nh\u1edd \u0111\u1ed9 nh\u1ea1y cao.<\/p><\/li><li><p style=\"margin: 0px;\"><a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/transimpedance-amplifiers-tias-how-they-work-and-applications\/\"><strong>B\u1ed9 khu\u1ebfch \u0111\u1ea1i chuy\u1ec3n tr\u1edf (TIA)<\/strong><\/a><strong>:<\/strong> Ch\u1ea5t l\u01b0\u1ee3ng b\u1ed9 khu\u1ebfch \u0111\u1ea1i n\u00e0y\u2014b\u1ed9 chuy\u1ec3n \u0111\u1ed5i d\u00f2ng \u0111i\u1ec7n t\u1eeb b\u1ed9 d\u00f2 quang th\u00e0nh t\u00edn hi\u1ec7u \u0111i\u1ec7n \u00e1p\u2014l\u00e0 y\u1ebfu t\u1ed1 then ch\u1ed1t.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>T\u1ed1c \u0111\u1ed9 d\u1eef li\u1ec7u:<\/strong> N\u00f3i chung, t\u1ed1c \u0111\u1ed9 d\u1eef li\u1ec7u cao h\u01a1n d\u1eabn \u0111\u1ebfn \u0111\u1ed9 nh\u1ea1y b\u1ed9 thu th\u1ea5p h\u01a1n (gi\u00e1 tr\u1ecb dBm cao h\u01a1n, \u00edt \u00e2m h\u01a1n) do b\u0103ng th\u00f4ng r\u1ed9ng h\u01a1n v\u00e0 nhi\u1ec5u t\u0103ng l\u00ean.<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1ea3ng d\u01b0\u1edbi \u0111\u00e2y t\u00f3m t\u1eaft m\u1ed1i quan h\u1ec7 \u0111i\u1ec3n h\u00ecnh gi\u1eefa t\u1ed1c \u0111\u1ed9 d\u1eef li\u1ec7u v\u00e0 \u0111\u1ed9 nh\u1ea1y \u0111\u1ed1i v\u1edbi m\u1ed9t b\u1ed9 thu quang ti\u00eau chu\u1ea9n:<\/p>\n\n\n\n<figure class=\"wp-block-table\">\n<table class=\"has-fixed-layout\">\n<colgroup><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\"><p>25Gbps<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>\u0110\u1ed9 nh\u1ea1y b\u1ed9 thu \u0111i\u1ec3n h\u00ecnh (\u1edf BER = 10\u207b\u00b9\u00b2)<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>\u1ee8ng d\u1ee5ng ph\u1ed5 bi\u1ebfn<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>1Gbps<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>-24 dBm<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Gigabit Ethernet, SDH\/SONET<br><\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>10 Gbps<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>-21 dBm<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>10G Ethernet, Fiber Channel<br><\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>25 Gbps<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>-18 dBm<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Ethernet 25G, Fronthaul 5G<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>100 Gbps<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>-15 dBm<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Li\u00ean k\u1ebft trung t\u00e2m d\u1eef li\u1ec7u (Data Center Interconnects), CFPs<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><em>B\u1ea3ng: C\u00e1c v\u00ed d\u1ee5 minh h\u1ecda c\u00e1ch \u0111\u1ed9 nh\u1ea1y thay \u0111\u1ed5i theo t\u1ed1c \u0111\u1ed9 d\u1eef li\u1ec7u. Gi\u00e1 tr\u1ecb th\u1ef1c t\u1ebf thay \u0111\u1ed5i t\u00f9y theo c\u00f4ng ngh\u1ec7 v\u00e0 nh\u00e0 s\u1ea3n xu\u1ea5t.<\/em><\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u26a1 Vai Tr\u00f2 Thi\u1ebft Y\u1ebfu C\u1ee7a \u0110\u1ed9 Nh\u1ea1y B\u1ed9 Thu Trong C\u00e1c Module Quang<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Khi n\u00f3i \u0111\u1ebfn c\u00e1c \u1ee9ng d\u1ee5ng th\u1ef1c ti\u1ec5n, <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-25432-optics-transceivers-sfp-modules.htm\"><strong>b\u1ed9 thu ph\u00e1t quang t\u1ed1c \u0111\u1ed9 cao<\/strong><\/a> l\u00e0 n\u01a1i l\u00fd thuy\u1ebft \u0111\u01b0\u1ee3c ki\u1ec3m ch\u1ee9ng tr\u00ean th\u1ef1c t\u1ebf. Nh\u1eefng thi\u1ebft b\u1ecb c\u1eafm n\u00f3ng n\u00e0y l\u00e0 tr\u1ee5 c\u1ed9t c\u1ee7a m\u1ea1ng hi\u1ec7n \u0111\u1ea1i, \u0111\u1ea3m nhi\u1ec7m vi\u1ec7c chuy\u1ec3n \u0111\u1ed5i gi\u1eefa t\u00edn hi\u1ec7u \u0111i\u1ec7n v\u00e0 xung \u00e1nh s\u00e1ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The <strong>\u0111\u1ed9 nh\u1ea1y b\u1ed9 thu c\u1ee7a m\u1ed9t module quang<\/strong> c\u00f3 l\u1ebd l\u00e0 m\u1ed9t trong nh\u1eefng th\u00f4ng s\u1ed1 quan tr\u1ecdng nh\u1ea5t c\u1ee7a n\u00f3. Th\u00f4ng s\u1ed1 n\u00e0y x\u00e1c \u0111\u1ecbnh kh\u1ea3 n\u0103ng ho\u1ea1t \u0111\u1ed9ng hi\u1ec7u qu\u1ea3 c\u1ee7a module trong c\u00e1c \u0111i\u1ec1u ki\u1ec7n th\u1ef1c t\u1ebf \u0111\u1ea7y th\u00e1ch th\u1ee9c\u2014\u0111\u1eb7c bi\u1ec7t trong truy\u1ec1n d\u1eabn \u0111\u01b0\u1eddng d\u00e0i ho\u1eb7c trong c\u00e1c h\u1ec7 th\u1ed1ng gh\u00e9p k\u00eanh ph\u00e2n chia b\u01b0\u1edbc s\u00f3ng d\u00e0y \u0111\u1eb7c (DWDM) <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/what-is-dwdm-explaining-dense-wavelength-division-multiplexing\/\"><strong>(DWDM)<\/strong><\/a> , n\u01a1i t\u00edn hi\u1ec7u b\u1ecb suy hao tr\u00ean nh\u1eefng kho\u1ea3ng c\u00e1ch r\u1ea5t l\u1edbn.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed1i v\u1edbi c\u00e1c ki\u1ebfn tr\u00fac s\u01b0 m\u1ea1ng, vi\u1ec7c l\u1ef1a ch\u1ecdn <strong>c\u00e1c b\u1ed9 thu ph\u00e1t quang \u0111\u1ed9 nh\u1ea1y cao<\/strong> l\u00e0 m\u1ed9t quy\u1ebft \u0111\u1ecbnh chi\u1ebfn l\u01b0\u1ee3c tr\u1ef1c ti\u1ebfp \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 tin c\u1eady c\u1ee7a m\u1ea1ng v\u00e0 t\u1ed5ng chi ph\u00ed s\u1edf h\u1eefu. \u0110\u00e2y l\u00e0 l\u00fac vi\u1ec7c l\u1ef1a ch\u1ecdn m\u1ed9t \u0111\u1ed1i t\u00e1c c\u00f3 n\u0103ng l\u1ef1c thi\u1ebft k\u1ebf v\u00e0 s\u1ea3n xu\u1ea5t ti\u00ean ti\u1ebfn tr\u1edf n\u00ean c\u1ef1c k\u1ef3 quan tr\u1ecdng.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img decoding=\"async\" width=\"1200\" height=\"719\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/85a349f89e2e4a2f8b32d36db525a8fc.jpg\" alt=\"optical transceiver\" class=\"wp-image-4816\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/85a349f89e2e4a2f8b32d36db525a8fc.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/85a349f89e2e4a2f8b32d36db525a8fc-300x180.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/85a349f89e2e4a2f8b32d36db525a8fc-1024x614.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/85a349f89e2e4a2f8b32d36db525a8fc-768x460.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/85a349f89e2e4a2f8b32d36db525a8fc-18x12.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\" ><strong>LINK-PP: Chuy\u00ean m\u00f4n k\u1ef9 thu\u1eadt v\u01b0\u1ee3t tr\u1ed9i trong \u0111\u1ed9 nh\u1ea1y \u0111\u1ea7u thu<\/strong><\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">T\u1ea1i <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.link-pp.com\/\"><strong>LINK-PP<\/strong><\/a>, ch\u00fang t\u00f4i chuy\u00ean v\u1ec1 vi\u1ec7c \u0111\u1ea9y gi\u1edbi h\u1ea1n hi\u1ec7u su\u1ea5t quang h\u1ecdc. Tr\u1ecdng t\u00e2m nghi\u00ean c\u1ee9u v\u00e0 ph\u00e1t tri\u1ec3n (R&amp;D) c\u1ee7a ch\u00fang t\u00f4i l\u00e0 thi\u1ebft k\u1ebf <strong>b\u1ed9 thu ph\u00e1t quang t\u1ed1c \u0111\u1ed9 cao<\/strong> c\u00e1c b\u1ed9 thu ph\u00e1t quang mang l\u1ea1i \u0111\u1ed9 nh\u1ea1y \u0111\u1ea7u thu d\u1eabn \u0111\u1ea7u ng\u00e0nh, \u0111\u1ea3m b\u1ea3o m\u1ea1ng c\u1ee7a b\u1ea1n v\u1eadn h\u00e0nh v\u1edbi hi\u1ec7u su\u1ea5t t\u1ed1i \u0111a v\u00e0 th\u1eddi gian ng\u1eebng ho\u1ea1t \u0111\u1ed9ng t\u1ed1i thi\u1ec3u.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c module c\u1ee7a ch\u00fang t\u00f4i t\u00edch h\u1ee3p <strong>b\u1ed9 khu\u1ebfch \u0111\u1ea1i d\u00f2ng \u0111i\u1ec7n chuy\u1ec3n \u0111\u1ed5i (TIA) \u00edt nhi\u1ec5u<\/strong> v\u00e0 c\u00e1c b\u1ed9 khu\u1ebfch \u0111\u1ea1i quang avalanche (APD) <strong>ch\u1ea5t l\u01b0\u1ee3ng cao<\/strong> \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c c\u00e1c ch\u1ec9 s\u1ed1 \u0111\u1ed9 nh\u1ea1y xu\u1ea5t s\u1eafc. \u0110i\u1ec1u n\u00e0y khi\u1ebfn ch\u00fang tr\u1edf n\u00ean l\u00fd t\u01b0\u1edfng cho c\u00e1c \u1ee9ng d\u1ee5ng y\u00eau c\u1ea7u hi\u1ec7u su\u1ea5t m\u1ea1nh m\u1ebd tr\u00ean kho\u1ea3ng c\u00e1ch m\u1edf r\u1ed9ng, ch\u1eb3ng h\u1ea1n nh\u01b0 <strong>k\u1ebft n\u1ed1i m\u1ea1ng khu v\u1ef1c \u0111\u00f4 th\u1ecb<\/strong> and <strong>li\u00ean k\u1ebft gi\u1eefa c\u00e1c trung t\u00e2m d\u1eef li\u1ec7u m\u1eadt \u0111\u1ed9 cao<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t v\u00ed d\u1ee5 ti\u00eau bi\u1ec3u cho tr\u00ecnh \u0111\u1ed9 k\u1ef9 thu\u1eadt n\u00e0y l\u00e0 module <strong>LINK-PP <\/strong><a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/472708.htm\"><strong>module 100G QSFP28 ER4<\/strong><\/a> c\u1ee7a ch\u00fang t\u00f4i. Module n\u00e0y \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf d\u00e0nh ri\u00eang cho c\u00e1c \u1ee9ng d\u1ee5ng t\u1ea7m xa v\u00e0 \u0111\u1ea1t \u0111\u1ed9 nh\u1ea1y \u0111\u1ea7u thu \u1ea5n t\u01b0\u1ee3ng \u1edf m\u1ee9c -16 dBm \u2014 m\u1ed9t l\u1ee3i th\u1ebf \u0111\u00e1ng k\u1ec3 so v\u1edbi nhi\u1ec1u m\u1eabu s\u1ea3n ph\u1ea9m c\u1ea1nh tranh kh\u00e1c. Hi\u1ec7u su\u1ea5t v\u01b0\u1ee3t tr\u1ed9i n\u00e0y \u0111\u1ea3m b\u1ea3o m\u1ed9t n\u1ec1n t\u1ea3ng <strong>ng\u00e2n s\u00e1ch li\u00ean k\u1ebft quang<\/strong> \u1ed5n \u0111\u1ecbnh h\u01a1n v\u00e0 kh\u1ea3 n\u0103ng tri\u1ec3n khai linh ho\u1ea1t h\u01a1n cho m\u1ea1ng 100G c\u1ee7a b\u1ea1n, t\u1eeb \u0111\u00f3 \u0111\u00e1p \u1ee9ng hi\u1ec7u qu\u1ea3 nhu c\u1ea7u v\u1ec1 <strong>c\u00e1c b\u1ed9 thu ph\u00e1t quang t\u1ea7m xa hi\u1ec7u su\u1ea5t cao<\/strong>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u26a1 C\u00e1ch ki\u1ec3m tra v\u00e0 x\u00e1c minh \u0111\u1ed9 nh\u1ea1y \u0111\u1ea7u thu<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ea3m b\u1ea3o c\u00e1c module c\u1ee7a b\u1ea1n \u0111\u00e1p \u1ee9ng \u0111\u00fang th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt l\u00e0 \u0111i\u1ec1u r\u1ea5t quan tr\u1ecdng. \u0110\u1ed9 nh\u1ea1y \u0111\u1ea7u thu th\u01b0\u1eddng \u0111\u01b0\u1ee3c x\u00e1c minh b\u1eb1ng h\u1ec7 th\u1ed1ng <strong>Ki\u1ec3m tra t\u1ef7 l\u1ec7 l\u1ed7i bit (BERT)<\/strong> Quy tr\u00ecnh ki\u1ec3m tra bao g\u1ed3m:<\/p>\n\n\n\n<ol class=\"wp-block-list\" >\n<li><p style=\"margin: 0px;\">L\u00e0m suy hao m\u1ed9t t\u00edn hi\u1ec7u quang \u0111\u00e3 bi\u1ebft l\u00e0 t\u1ed1t xu\u1ed1ng m\u1ee9c c\u00f4ng su\u1ea5t r\u1ea5t th\u1ea5p.<\/p><\/li><li><p style=\"margin: 0px;\">\u0110\u01b0a t\u00edn hi\u1ec7u y\u1ebfu n\u00e0y v\u00e0o \u0111\u1ea7u thu \u0111ang \u0111\u01b0\u1ee3c ki\u1ec3m tra.<\/p><\/li><li><p style=\"margin: 0px;\">\u0110o t\u1ef7 l\u1ec7 l\u1ed7i bit (BER) t\u1ea1i m\u1ee9c c\u00f4ng su\u1ea5t \u0111\u1ea7u v\u00e0o c\u1ee5 th\u1ec3 \u0111\u00f3.<\/p><\/li><li><p style=\"margin: 0px;\">\u0110\u1ed9 nh\u1ea1y l\u00e0 m\u1ee9c c\u00f4ng su\u1ea5t t\u1ea1i \u0111\u00f3 t\u1ef7 l\u1ec7 l\u1ed7i bit (BER) v\u01b0\u1ee3t ng\u01b0\u1ee1ng \u0111\u00e3 \u0111\u1ecbnh tr\u01b0\u1edbc (v\u00ed d\u1ee5: 10\u207b\u00b9\u00b2).<\/p><\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u26a1 K\u1ebft lu\u1eadn: \u0110\u1eebng \u0111\u1ec3 t\u00edn hi\u1ec7u y\u1ebfu tr\u1edf th\u00e0nh \u0111i\u1ec3m y\u1ebfu c\u1ee7a b\u1ea1n<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u0110\u1ed9 nh\u1ea1y b\u1ed9 thu<\/strong> kh\u00f4ng ch\u1ec9 \u0111\u01a1n thu\u1ea7n l\u00e0 m\u1ed9t m\u1ee5c trong b\u1ea3ng th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt. \u0110\u00e2y l\u00e0 y\u1ebfu t\u1ed1 c\u01a1 b\u1ea3n quy\u1ebft \u0111\u1ecbnh ph\u1ea1m vi ph\u1ee7 s\u00f3ng, \u0111\u1ed9 tin c\u1eady v\u00e0 hi\u1ec7u su\u1ea5t c\u1ee7a m\u1ea1ng. Trong k\u1ef7 nguy\u00ean do d\u1eef li\u1ec7u l\u00e0m ch\u1ee7, vi\u1ec7c gi\u1ea3m ti\u00eau chu\u1ea9n th\u00f4ng s\u1ed1 n\u00e0y c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn t\u0103ng l\u1ed7i, kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng b\u1ecb h\u1ea1n ch\u1ebf v\u00e0 chi ph\u00ed v\u1eadn h\u00e0nh cao h\u01a1n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1eb1ng c\u00e1ch \u01b0u ti\u00ean c\u00e1c th\u00e0nh ph\u1ea7n c\u00f3 \u0111\u1ed9 nh\u1ea1y cao, \u0111\u1eb7c bi\u1ec7t trong qu\u00e1 tr\u00ecnh l\u1ef1a ch\u1ecdn <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-25432-optics-transceivers-sfp-modules.htm\"><strong>m\u00f4-\u0111un quang<\/strong><\/a> , b\u1ea1n \u0111ang \u0111\u1ea7u t\u01b0 v\u00e0o m\u1ed9t n\u1ec1n t\u1ea3ng m\u1ea1ng m\u1ea1nh m\u1ebd v\u00e0 b\u1ec1n b\u1ec9 h\u01a1n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>S\u1eb5n s\u00e0ng lo\u1ea1i b\u1ecf s\u1ef1 b\u1ea5t \u0111\u1ecbnh v\u1ec1 t\u00edn hi\u1ec7u v\u00e0 n\u00e2ng c\u1ea5p c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng c\u1ee7a b\u1ea1n cho t\u01b0\u01a1ng lai? <\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Kh\u00e1m ph\u00e1 <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.link-pp.com\/\"><strong>LINK-PP<\/strong><\/a><strong>\u2018b\u1ed9 s\u1ea3n ph\u1ea9m \u0111\u1ea7y \u0111\u1ee7 c\u1ee7a<\/strong> danh m\u1ee5c s\u1ea3n ph\u1ea9m to\u00e0n di\u1ec7n c\u00e1c b\u1ed9 thu ph\u00e1t quang \u0111\u1ed9 nh\u1ea1y cao. C\u00e1c chuy\u00ean gia c\u1ee7a ch\u00fang t\u00f4i s\u1eb5n s\u00e0ng h\u1ed7 tr\u1ee3 b\u1ea1n l\u1ef1a ch\u1ecdn module ph\u00f9 h\u1ee3p nh\u1ea5t cho nhu c\u1ea7u c\u1ee5 th\u1ec3 v\u1ec1 <strong>ng\u00e2n s\u00e1ch c\u00f4ng su\u1ea5t quang<\/strong> v\u00e0 \u1ee9ng d\u1ee5ng c\u1ee7a b\u1ea1n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/page\/contactus.htm\"><strong>Li\u00ean h\u1ec7 LINK-PP ngay h\u00f4m nay<\/strong><\/a><strong> \u0111\u1ec3 y\u00eau c\u1ea7u b\u1ea3ng d\u1eef li\u1ec7u ho\u1eb7c \u0111\u1eb7t l\u1ecbch t\u01b0 v\u1ea5n!<\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u26a1 C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p (FAQ)<\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" >\u0110\u1ed9 nh\u1ea1y \u0111\u1ea7u thu c\u00f3 \u00fd ngh\u0129a g\u00ec \u0111\u1ed1i v\u1edbi thi\u1ebft b\u1ecb c\u1ee7a b\u1ea1n?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed9 nh\u1ea1y \u0111\u1ea7u thu cho bi\u1ebft t\u00edn hi\u1ec7u nh\u1ecf nh\u1ea5t m\u00e0 thi\u1ebft b\u1ecb c\u1ee7a b\u1ea1n c\u00f3 th\u1ec3 nh\u1eadn \u0111\u01b0\u1ee3c. Gi\u00e1 tr\u1ecb n\u00e0y gi\u00fap b\u1ea1n bi\u1ebft li\u1ec7u thi\u1ebft b\u1ecb c\u1ee7a m\u00ecnh c\u00f3 ho\u1ea1t \u0111\u1ed9ng t\u1ed1t v\u1edbi c\u00e1c t\u00edn hi\u1ec7u y\u1ebfu hay kh\u00f4ng.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >\u0110i\u1ec1u g\u00ec x\u1ea3y ra n\u1ebfu thi\u1ebft b\u1ecb c\u1ee7a b\u1ea1n c\u00f3 \u0111\u1ed9 nh\u1ea1y \u0111\u1ea7u thu k\u00e9m?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">N\u1ebfu thi\u1ebft b\u1ecb c\u1ee7a b\u1ea1n c\u00f3 \u0111\u1ed9 nh\u1ea1y \u0111\u1ea7u thu k\u00e9m, n\u00f3 s\u1ebd b\u1ecf l\u1ee1 c\u00e1c t\u00edn hi\u1ec7u y\u1ebfu. B\u1ea1n c\u00f3 th\u1ec3 m\u1ea5t k\u1ebft n\u1ed1i, t\u1ed1c \u0111\u1ed9 truy\u1ec1n d\u1eef li\u1ec7u ch\u1eadm ho\u1eb7c m\u1ea5t th\u00f4ng tin khi t\u00edn hi\u1ec7u y\u1ebfu.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >B\u1ea1n c\u00f3 th\u1ec3 ki\u1ec3m tra nh\u1eefng y\u1ebfu t\u1ed1 n\u00e0o \u0111\u1ec3 so s\u00e1nh \u0111\u1ed9 nh\u1ea1y \u0111\u1ea7u thu gi\u1eefa c\u00e1c thi\u1ebft b\u1ecb?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Ki\u1ec3m tra gi\u00e1 tr\u1ecb dBm trong th\u00f4ng tin chi ti\u1ebft s\u1ea3n ph\u1ea9m. Gi\u00e1 tr\u1ecb dBm c\u00e0ng th\u1ea5p th\u00ec \u0111\u1ed9 nh\u1ea1y c\u00e0ng t\u1ed1t. B\u1ea1n c\u0169ng n\u00ean xem x\u00e9t t\u1ef7 l\u1ec7 l\u1ed7i g\u00f3i (PER) ho\u1eb7c t\u1ef7 l\u1ec7 l\u1ed7i bit (BER) \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 hi\u1ec7u su\u1ea5t th\u1ef1c t\u1ebf c\u1ee7a thi\u1ebft b\u1ecb.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >Nh\u1eefng b\u01b0\u1edbc n\u00e0o gi\u00fap c\u1ea3i thi\u1ec7n \u0111\u1ed9 nh\u1ea1y \u0111\u1ea7u thu?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1ea1n c\u00f3 th\u1ec3 gi\u1ea3m nhi\u1ec5u, \u0111i\u1ec1u ch\u1ec9nh c\u00e0i \u0111\u1eb7t thi\u1ebft b\u1ecb ho\u1eb7c n\u00e2ng c\u1ea5p ph\u1ea7n c\u1ee9ng. H\u00e3y th\u1eed s\u1eed d\u1ee5ng anten t\u1ed1t h\u01a1n ho\u1eb7c b\u1ed9 khu\u1ebfch \u0111\u1ea1i \u00edt nhi\u1ec5u (LNA). Nh\u1eefng gi\u1ea3i ph\u00e1p n\u00e0y gi\u00fap thi\u1ebft b\u1ecb c\u1ee7a b\u1ea1n nh\u1eadn \u0111\u01b0\u1ee3c c\u00e1c t\u00edn hi\u1ec7u y\u1ebfu h\u01a1n.<\/p>","protected":false},"excerpt":{"rendered":"<p>\u0110\u1ed9 nh\u1ea1y b\u1ed9 thu th\u1ec3 hi\u1ec7n m\u1ee9c t\u00edn hi\u1ec7u th\u1ea5p nh\u1ea5t m\u00e0 thi\u1ebft b\u1ecb c\u00f3 th\u1ec3 ph\u00e1t hi\u1ec7n. T\u00ecm hi\u1ec3u c\u00e1ch \u0111\u1ed9 nh\u1ea1y \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn ch\u1ea5t l\u01b0\u1ee3ng k\u1ebft n\u1ed1i v\u00e0 \u00fd ngh\u0129a c\u1ee7a c\u00e1c gi\u00e1 tr\u1ecb n\u00e0y \u0111\u1ed1i v\u1edbi hi\u1ec7u su\u1ea5t thi\u1ebft b\u1ecb c\u1ee7a b\u1ea1n.<\/p>","protected":false},"author":1,"featured_media":4815,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[27],"tags":[13,14,16,17,18,24,26],"class_list":["post-4817","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-glossary","tag-100g-modules","tag-10g-sfp-transceivers","tag-link-pp-25g-sfp28-optical-modules","tag-400g-optical-modules","tag-40g-qsfp-transceivers","tag-link-pp","tag-optics-transceivers"],"blocksy_meta":[],"acf":[],"_links":{"self":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/4817","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/comments?post=4817"}],"version-history":[{"count":5,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/4817\/revisions"}],"predecessor-version":[{"id":11048,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/4817\/revisions\/11048"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/media\/4815"}],"wp:attachment":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/media?parent=4817"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/categories?post=4817"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/tags?post=4817"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}