{"id":5033,"date":"2025-09-17T11:12:00","date_gmt":"2025-09-17T11:12:00","guid":{"rendered":"https:\/\/lp.szlogic.cn\/knowledge-center\/ask-vs-fsk-vs-psk-which-modulation-method-should-you-choose\/"},"modified":"2026-06-22T07:07:14","modified_gmt":"2026-06-22T07:07:14","slug":"ask-vs-fsk-vs-psk-which-modulation-method-should-you-choose","status":"publish","type":"post","link":"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/ask-vs-fsk-vs-psk-which-modulation-method-should-you-choose","title":{"rendered":"ASK so v\u1edbi FSK so v\u1edbi PSK: Kh\u00e1m Ph\u00e1 B\u00ed M\u1eadt C\u1ee7a \u0110i\u1ec1u Ch\u1ebf K\u1ef9 Thu\u1eadt S\u1ed1"},"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\/cd8f2871b4444087ba8b1e9456a87673.webp\" alt=\"ASK vs FSK vs PSK Which Modulation Method Is Right for You\" class=\"wp-image-5029\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/cd8f2871b4444087ba8b1e9456a87673.webp 1312w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/cd8f2871b4444087ba8b1e9456a87673-300x168.webp 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/cd8f2871b4444087ba8b1e9456a87673-1024x574.webp 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/cd8f2871b4444087ba8b1e9456a87673-768x431.webp 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/cd8f2871b4444087ba8b1e9456a87673-18x10.webp 18w\" sizes=\"(max-width: 1312px) 100vw, 1312px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Trong th\u1ebf gi\u1edbi v\u00f4 h\u00ecnh c\u1ee7a truy\u1ec1n th\u00f4ng k\u1ef9 thu\u1eadt s\u1ed1, d\u1eef li\u1ec7u kh\u00f4ng \u0111\u01a1n thu\u1ea7n bay l\u01a1 l\u1eedng k\u1ef3 di\u1ec7u trong kh\u00f4ng kh\u00ed hay lao nhanh qua <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/fiber-optic-cable-what-it-is-and-how-it-works-explained\/\"><strong>c\u00e1p quang<\/strong><\/a>. N\u00f3 c\u1ea7n \u0111\u01b0\u1ee3c ghi c\u1ea9n th\u1eadn l\u00ean m\u1ed9t t\u00edn hi\u1ec7u mang \u0111\u1ec3 truy\u1ec1n \u0111i nh\u1eefng kho\u1ea3ng c\u00e1ch xa. Qu\u00e1 tr\u00ecnh n\u00e0y \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 <strong>\u0111i\u1ec1u ch\u1ebf k\u1ef9 thu\u1eadt s\u1ed1<\/strong>, v\u00e0 \u0111\u00e2y l\u00e0 ng\u00f4n ng\u1eef n\u1ec1n t\u1ea3ng c\u1ee7a kh\u1ea3 n\u0103ng k\u1ebft n\u1ed1i hi\u1ec7n \u0111\u1ea1i, t\u1eeb b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn Wi-Fi c\u1ee7a b\u1ea1n \u0111\u1ebfn c\u00e1c c\u00e1p quang d\u01b0\u1edbi bi\u1ec3n xuy\u00ean l\u1ee5c \u0111\u1ecba.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ba k\u1ef9 thu\u1eadt n\u1ec1n t\u1ea3ng t\u1ea1o th\u00e0nh n\u1ec1n m\u00f3ng c\u1ee7a ng\u00f4n ng\u1eef n\u00e0y: <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/ask-modulation-digital-communication-basics-advantages\/\"><strong>\u0110i\u1ec1u ch\u1ebf d\u1ecbch chuy\u1ec3n bi\u00ean \u0111\u1ed9 (ASK)<\/strong><\/a>, <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/fsk-modulation-what-it-is-how-fsk-works-digital-communication\/\"><strong>\u0110i\u1ec1u ch\u1ebf d\u1ecbch chuy\u1ec3n t\u1ea7n s\u1ed1 (FSK)<\/strong><\/a>, and <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/search\/?keyword=PSK\"><strong>\u0110i\u1ec1u ch\u1ebf d\u1ecbch chuy\u1ec3n pha (PSK)<\/strong><\/a>. Vi\u1ec7c hi\u1ec3u r\u00f5 s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa ch\u00fang l\u00e0 ch\u00eca kh\u00f3a \u0111\u1ec3 n\u1eafm b\u1eaft c\u00e1ch v\u1eadn h\u00e0nh th\u1ebf gi\u1edbi k\u1ef9 thu\u1eadt s\u1ed1 c\u1ee7a ch\u00fang ta. H\u00e3y c\u00f9ng t\u00ecm hi\u1ec3u s\u00e2u h\u01a1n v\u00e0 gi\u1ea3i m\u00e3 nh\u1eefng c\u00f4ng ngh\u1ec7 thi\u1ebft y\u1ebfu n\u00e0y.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\ud83d\udca1 \u0110i\u1ec1u ch\u1ebf d\u1ecbch chuy\u1ec3n bi\u00ean \u0111\u1ed9 (ASK): C\u00f4ng t\u1eafc \u0111\u01a1n gi\u1ea3n<\/strong><\/h2>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img decoding=\"async\" width=\"1312\" height=\"736\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/eb9919a7bdd34278a01c87ee8d693d50.webp\" alt=\"Amplitude Shift Keying (ASK)\" class=\"wp-image-5030\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/eb9919a7bdd34278a01c87ee8d693d50.webp 1312w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/eb9919a7bdd34278a01c87ee8d693d50-300x168.webp 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/eb9919a7bdd34278a01c87ee8d693d50-1024x574.webp 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/eb9919a7bdd34278a01c87ee8d693d50-768x431.webp 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/eb9919a7bdd34278a01c87ee8d693d50-18x10.webp 18w\" sizes=\"(max-width: 1312px) 100vw, 1312px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>L\u00e0 g\u00ec:<\/strong> ASK \u0111i\u1ec1u ch\u1ebf d\u1eef li\u1ec7u b\u1eb1ng c\u00e1ch thay \u0111\u1ed5i <strong>bi\u00ean \u0111\u1ed9<\/strong> (t\u1ee9c l\u00e0 \u0111\u1ed9 m\u1ea1nh ho\u1eb7c chi\u1ec1u cao) c\u1ee7a s\u00f3ng mang. D\u1ea1ng \u0111\u01a1n gi\u1ea3n nh\u1ea5t, <strong>\u0110i\u1ec1u ch\u1ebf b\u1eadt-t\u1eaft (OOK)<\/strong>, s\u1eed d\u1ee5ng s\u1ef1 hi\u1ec7n di\u1ec7n c\u1ee7a s\u00f3ng mang \u0111\u1ec3 bi\u1ec3u di\u1ec5n bit nh\u1ecb ph\u00e2n \u20181\u2019 v\u00e0 s\u1ef1 v\u1eafng m\u1eb7t c\u1ee7a n\u00f3 \u0111\u1ec3 bi\u1ec3u di\u1ec5n bit nh\u1ecb ph\u00e2n \u20180\u2019.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p style=\"margin: 0px;\">Bit nh\u1ecb ph\u00e2n \u20181\u2019: S\u00f3ng mang c\u00f3 bi\u00ean \u0111\u1ed9 cao.<\/p><\/li><li><p style=\"margin: 0px;\">Bit nh\u1ecb ph\u00e2n \u20180\u2019: S\u00f3ng mang c\u00f3 bi\u00ean \u0111\u1ed9 th\u1ea5p ho\u1eb7c b\u1eb1ng kh\u00f4ng.<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u01afu \u0111i\u1ec3m &amp; Nh\u01b0\u1ee3c \u0111i\u1ec3m:<\/strong><\/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;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\"><p>Nh\u01b0\u1ee3c \u0111i\u1ec3m<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>Chi ph\u00ed ban \u0111\u1ea7u th\u1ea5p, h\u1ed7 tr\u1ee3 PoE, h\u1ed7 tr\u1ee3 thay th\u1ebf n\u00f3ng, d\u1ec5 l\u1eafp \u0111\u1eb7t<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>D\u1ec5 t\u1ea1o v\u00e0 gi\u1ea3i \u0111i\u1ec1u ch\u1ebf<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>R\u1ea5t d\u1ec5 b\u1ecb nhi\u1ec5u v\u00e0 can nhi\u1ec5u<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>Tri\u1ec3n khai chi ph\u00ed th\u1ea5p<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>S\u1eed d\u1ee5ng b\u0103ng th\u00f4ng k\u00e9m hi\u1ec7u qu\u1ea3<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p\/><\/td><td colspan=\"1\" rowspan=\"1\"><p>Hi\u1ec7u su\u1ea5t c\u00f4ng su\u1ea5t th\u1ea5p<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u1ee8ng D\u1ee5ng:<\/strong> ASK th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c <strong>\u1ee9ng d\u1ee5ng RF chi ph\u00ed th\u1ea5p, t\u1ea7m ng\u1eafn<\/strong> nh\u01b0 b\u1ed9 m\u1edf c\u1eeda garage, th\u1ebb RFID v\u00e0 c\u00e1c b\u1ed9 ph\u00e1t s\u1ee3i quang th\u1ebf h\u1ec7 \u0111\u1ea7u. S\u1ef1 \u0111\u01a1n gi\u1ea3n c\u1ee7a n\u00f3 khi\u1ebfn chi ph\u00ed r\u1ebb nh\u01b0ng c\u0169ng h\u1ea1n ch\u1ebf hi\u1ec7u n\u0103ng trong m\u00f4i tr\u01b0\u1eddng nhi\u1ec5u.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\ud83d\udca1 \u0110i\u1ec1u ch\u1ebf d\u1ecbch chuy\u1ec3n t\u1ea7n s\u1ed1 (FSK): Chuy\u1ec3n \u0111\u1ed5i gi\u1eefa c\u00e1c t\u1ea7n s\u1ed1<\/strong><\/h2>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img decoding=\"async\" width=\"1312\" height=\"736\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/1d79ef2d698447c98c41227946eaeee7.webp\" alt=\"Frequency Shift Keying (FSK)\" class=\"wp-image-5031\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/1d79ef2d698447c98c41227946eaeee7.webp 1312w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/1d79ef2d698447c98c41227946eaeee7-300x168.webp 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/1d79ef2d698447c98c41227946eaeee7-1024x574.webp 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/1d79ef2d698447c98c41227946eaeee7-768x431.webp 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/1d79ef2d698447c98c41227946eaeee7-18x10.webp 18w\" sizes=\"(max-width: 1312px) 100vw, 1312px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>L\u00e0 g\u00ec:<\/strong> FSK m\u00e3 h\u00f3a d\u1eef li\u1ec7u b\u1eb1ng c\u00e1ch d\u1ecbch chuy\u1ec3n <strong>t\u1ea7n s\u1ed1<\/strong> c\u1ee7a s\u00f3ng mang gi\u1eefa hai gi\u00e1 tr\u1ecb \u0111\u00e3 x\u00e1c \u0111\u1ecbnh tr\u01b0\u1edbc. M\u1ed9t bit nh\u1ecb ph\u00e2n \u20181\u2019 \u0111\u01b0\u1ee3c bi\u1ec3u di\u1ec5n b\u1edfi m\u1ed9t t\u1ea7n s\u1ed1, c\u00f2n bit nh\u1ecb ph\u00e2n \u20180\u2019 \u0111\u01b0\u1ee3c bi\u1ec3u di\u1ec5n b\u1edfi t\u1ea7n s\u1ed1 kh\u00e1c.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p style=\"margin: 0px;\">Bit nh\u1ecb ph\u00e2n \u20181\u2019: S\u00f3ng mang t\u1ea1i t\u1ea7n s\u1ed1 <strong>f\u2081<\/strong>.<\/p><\/li><li><p style=\"margin: 0px;\">Bit nh\u1ecb ph\u00e2n \u20180\u2019: S\u00f3ng mang t\u1ea1i t\u1ea7n s\u1ed1 <strong>f\u2082<\/strong>.<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u01afu \u0111i\u1ec3m &amp; Nh\u01b0\u1ee3c \u0111i\u1ec3m:<\/strong><\/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;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\"><p>Nh\u01b0\u1ee3c \u0111i\u1ec3m<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>Chi ph\u00ed ban \u0111\u1ea7u th\u1ea5p, h\u1ed7 tr\u1ee3 PoE, h\u1ed7 tr\u1ee3 thay th\u1ebf n\u00f3ng, d\u1ec5 l\u1eafp \u0111\u1eb7t<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>Ch\u1ecbu nhi\u1ec5u v\u00e0 bi\u1ebfn thi\u00ean bi\u00ean \u0111\u1ed9 t\u1ed1t h\u01a1n ASK<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Y\u00eau c\u1ea7u b\u0103ng th\u00f4ng l\u1edbn h\u01a1n PSK<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>Gi\u1ea3i \u0111i\u1ec1u ch\u1ebf \u0111\u01a1n gi\u1ea3n<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p\/><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>Hi\u1ec7u su\u1ea5t xu\u1ea5t s\u1eafc cho d\u1eef li\u1ec7u t\u1ed1c \u0111\u1ed9 th\u1ea5p<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p\/><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u1ee8ng D\u1ee5ng:<\/strong> FSK n\u1ed5i ti\u1ebfng nh\u1edd \u0111\u1ed9 b\u1ec1n v\u1eefng. N\u00f3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong <strong>\u0111o t\u1eeb xa (telemetry), truy\u1ec1n th\u00f4ng modem, Bluetooth (s\u1eed d\u1ee5ng bi\u1ebfn th\u1ec3 g\u1ecdi l\u00e0 GFSK) v\u00e0 h\u1ec7 th\u1ed1ng ph\u00e1t thanh kh\u1ea9n c\u1ea5p<\/strong> n\u01a1i t\u00ednh to\u00e0n v\u1eb9n t\u00edn hi\u1ec7u l\u00e0 y\u1ebfu t\u1ed1 then ch\u1ed1t.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\ud83d\udca1 \u0110i\u1ec1u ch\u1ebf d\u1ecbch chuy\u1ec3n pha (PSK): B\u1eadc th\u1ea7y v\u1ec1 d\u1ecbch chuy\u1ec3n pha<\/strong><\/h2>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1312\" height=\"736\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/7b959b465ec74909b06e7fd9f9046233.webp\" alt=\"Phase Shift Keying (PSK)\" class=\"wp-image-5032\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/7b959b465ec74909b06e7fd9f9046233.webp 1312w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/7b959b465ec74909b06e7fd9f9046233-300x168.webp 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/7b959b465ec74909b06e7fd9f9046233-1024x574.webp 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/7b959b465ec74909b06e7fd9f9046233-768x431.webp 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/7b959b465ec74909b06e7fd9f9046233-18x10.webp 18w\" sizes=\"(max-width: 1312px) 100vw, 1312px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>L\u00e0 g\u00ec:<\/strong> PSK truy\u1ec1n t\u1ea3i d\u1eef li\u1ec7u b\u1eb1ng c\u00e1ch thay \u0111\u1ed5i <strong>pha<\/strong> c\u1ee7a s\u00f3ng mang. M\u1ed9t s\u1ef1 d\u1ecbch pha (v\u00ed d\u1ee5: 0\u00b0 ho\u1eb7c 180\u00b0) bi\u1ec3u th\u1ecb m\u1ed9t k\u00fd hi\u1ec7u nh\u1ecb ph\u00e2n kh\u00e1c nhau. C\u00e1c d\u1ea1ng ti\u00ean ti\u1ebfn nh\u1ea5t c\u1ee7a n\u00f3 \u0111\u00f3ng g\u00f3i nhi\u1ec1u bit tr\u00ean m\u1ed7i k\u00fd hi\u1ec7u, gi\u00fap \u0111\u1ea1t hi\u1ec7u su\u1ea5t r\u1ea5t cao.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>C\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng (<\/strong><a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/bpsk-modulation-basics-how-bpsk-works-in-digital-communication\/\"><strong>BPSK<\/strong><\/a><strong> \u2013 d\u1ea1ng \u0111\u01a1n gi\u1ea3n nh\u1ea5t):<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p style=\"margin: 0px;\">Nh\u1ecb ph\u00e2n \u20180\u2019: S\u00f3ng mang v\u1edbi \u0111\u1ed9 d\u1ecbch pha 0\u00b0.<\/p><\/li><li><p style=\"margin: 0px;\">Nh\u1ecb ph\u00e2n \u20181\u2019: S\u00f3ng mang v\u1edbi \u0111\u1ed9 d\u1ecbch pha 180\u00b0.<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c phi\u00ean b\u1ea3n n\u00e2ng cao nh\u01b0 <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/what-you-should-know-about-qpsk-modulation-basics-advantages\/\"><strong>PSK vu\u00f4ng g\u00f3c (QPSK)<\/strong><\/a> s\u1eed d\u1ee5ng b\u1ed1n \u0111\u1ed9 d\u1ecbch pha \u0111\u1ec3 m\u00e3 h\u00f3a hai bit tr\u00ean m\u1ed7i k\u00fd hi\u1ec7u (00, 01, 10, 11), t\u1eeb \u0111\u00f3 nh\u00e2n \u0111\u00f4i t\u1ed1c \u0111\u1ed9 d\u1eef li\u1ec7u.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u01afu \u0111i\u1ec3m &amp; Nh\u01b0\u1ee3c \u0111i\u1ec3m:<\/strong><\/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;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\"><p>Nh\u01b0\u1ee3c \u0111i\u1ec3m<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>Chi ph\u00ed ban \u0111\u1ea7u th\u1ea5p, h\u1ed7 tr\u1ee3 PoE, h\u1ed7 tr\u1ee3 thay th\u1ebf n\u00f3ng, d\u1ec5 l\u1eafp \u0111\u1eb7t<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>Hi\u1ec7u qu\u1ea3 b\u0103ng th\u00f4ng cao<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Ph\u1ee9c t\u1ea1p h\u01a1n trong vi\u1ec7c t\u1ea1o v\u00e0 gi\u1ea3i \u0111i\u1ec1u ch\u1ebf<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>Kh\u1ea3 n\u0103ng ch\u1ed1ng nhi\u1ec5u xu\u1ea5t s\u1eafc (t\u1ed1t h\u01a1n ASK\/FSK)<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p\/><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>Cho ph\u00e9p truy\u1ec1n d\u1eef li\u1ec7u t\u1ed1c \u0111\u1ed9 cao<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p\/><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u1ee8ng D\u1ee5ng:<\/strong> PSK l\u00e0 n\u1ec1n t\u1ea3ng s\u1ee9c m\u1ea1nh \u0111\u1eb1ng sau <strong>c\u00e1c h\u1ec7 th\u1ed1ng truy\u1ec1n th\u00f4ng hi\u1ec7n \u0111\u1ea1i t\u1ed1c \u0111\u1ed9 cao<\/strong>. N\u00f3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c chu\u1ea9n Wi-Fi, truy\u1ec1n h\u00ecnh v\u1ec7 tinh, internet b\u0103ng th\u00f4ng r\u1ed9ng (modem DSL\/c\u00e1p), v\u00e0 \u0111\u1eb7c bi\u1ec7t quan tr\u1ecdng, trong <strong>h\u1ec7 th\u1ed1ng truy\u1ec1n th\u00f4ng quang<\/strong> c\u00e1c trung t\u00e2m d\u1eef li\u1ec7u t\u1ed1c \u0111\u1ed9 cao v\u00e0 m\u1ea1ng vi\u1ec5n th\u00f4ng.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\ud83d\udca1 So s\u00e1nh tr\u1ef1c ti\u1ebfp: ASK so v\u1edbi FSK so v\u1edbi PSK<\/strong><\/h2>\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;\"\/><col style=\"min-width: 25px;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\"><p>\u0110\u1eb7c t\u00ednh<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p><strong>ASK<\/strong><\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p><strong>FSK<\/strong><\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p><strong>PSK<\/strong><\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>Th\u00f4ng s\u1ed1 thay \u0111\u1ed5i<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Bi\u00ean \u0111\u1ed9<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>T\u1ea7n s\u1ed1<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Pha<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>Kh\u1ea3 n\u0103ng ch\u1ed1ng nhi\u1ec5u<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>K\u00e9m<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>T\u1ed1t<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p><strong>Xu\u1ea5t s\u1eafc<\/strong><\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>Hi\u1ec7u su\u1ea5t s\u1eed d\u1ee5ng b\u0103ng th\u00f4ng<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Th\u1ea5p<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>M\u00f4i tr\u01b0\u1eddng truy\u1ec1n d\u1eabn<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p><strong>Cao<br><\/strong><\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>\u0110\u1ed9 ph\u1ee9c t\u1ea1p<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Th\u1ea5p<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>M\u00f4i tr\u01b0\u1eddng truy\u1ec1n d\u1eabn<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Cao<br><\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>Tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng \u0111i\u1ec3n h\u00ecnh<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>RF \u0111\u01a1n gi\u1ea3n, chi ph\u00ed th\u1ea5p<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>D\u1eef li\u1ec7u t\u1ed1c \u0111\u1ed9 th\u1ea5p, \u0111\u1ed9 b\u1ec1n cao<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p><strong>D\u1eef li\u1ec7u t\u1ed1c \u0111\u1ed9 cao, quang h\u1ecdc<\/strong><\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\ud83d\udca1 Vai tr\u00f2 trong truy\u1ec1n th\u00f4ng quang hi\u1ec7n \u0111\u1ea1i &amp; LINK-PP<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Trong l\u0129nh v\u1ef1c <strong>li\u00ean k\u1ebft gi\u1eefa c\u00e1c trung t\u00e2m d\u1eef li\u1ec7u t\u1ed1c \u0111\u1ed9 cao v\u00e0 m\u1ea1ng c\u00e1p quang<\/strong>, hi\u1ec7u qu\u1ea3 v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng nhi\u1ec5u l\u00e0 y\u1ebfu t\u1ed1 then ch\u1ed1t. \u0110\u00e2y ch\u00ednh l\u00e0 n\u01a1i c\u00e1c \u0111\u1ecbnh d\u1ea1ng \u0111i\u1ec1u ch\u1ebf ti\u00ean ti\u1ebfn nh\u01b0 PSK v\u00e0 c\u00e1c bi\u1ebfn th\u1ec3 c\u1ee7a n\u00f3 (v\u00ed d\u1ee5:, <strong>\u0110i\u1ec1u ch\u1ebf d\u1ecbch pha vi ph\u00e2n \u2013 DPSK<\/strong>) th\u1ef1c s\u1ef1 t\u1ecfa s\u00e1ng. Ch\u00fang cho ph\u00e9p <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-25432-optics-transceivers-sfp-modules.htm\"><strong>b\u1ed9 thu ph\u00e1t quang<\/strong><\/a> truy\u1ec1n l\u01b0\u1ee3ng d\u1eef li\u1ec7u kh\u1ed5ng l\u1ed3 tr\u00ean kho\u1ea3ng c\u00e1ch c\u1ef1c k\u1ef3 xa v\u1edbi s\u1ed1 l\u1ed7i t\u1ed1i thi\u1ec3u.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed1i v\u1edbi k\u1ef9 s\u01b0 m\u1ea1ng x\u00e2y d\u1ef1ng c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng \u0111\u00e1ng tin c\u1eady, vi\u1ec7c l\u1ef1a ch\u1ecdn \u0111\u00fang <strong>b\u1ed9 thu ph\u00e1t quang<\/strong> l\u00e0 v\u00f4 c\u00f9ng quan tr\u1ecdng. \u0110\u00e2y l\u00e0 l\u00fac m\u1ed9t th\u01b0\u01a1ng hi\u1ec7u uy t\u00edn nh\u01b0 <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/page\/aboutus.htm\"><strong>LINK-PP<\/strong><\/a> cung c\u1ea5p c\u00e1c gi\u1ea3i ph\u00e1p thi\u1ebft y\u1ebfu. C\u00e1c module quang c\u1ee7a LINK-PP \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 khai th\u00e1c c\u00e1c k\u1ef9 thu\u1eadt \u0111i\u1ec1u ch\u1ebf ti\u00ean ti\u1ebfn n\u00e0y, \u0111\u1ea3m b\u1ea3o hi\u1ec7u n\u0103ng v\u00e0 \u0111\u1ed9 tin c\u1eady t\u1ed1i \u0111a cho <strong>y\u00eau c\u1ea7u m\u1ea1ng b\u0103ng th\u00f4ng cao, \u0111\u1ed9 tr\u1ec5 th\u1ea5p<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00ed d\u1ee5, b\u1ed9 thu ph\u00e1t <strong>LINK-PP <\/strong><a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/476046.htm\"><strong>LS-SM3125-10C<br><\/strong><\/a> module quang n\u00e0y s\u1eed d\u1ee5ng k\u1ef9 thu\u1eadt \u0111i\u1ec1u ch\u1ebf tinh vi \u0111\u1ec3 \u0111\u1ea1t t\u1ed1c \u0111\u1ed9 d\u1eef li\u1ec7u 25 Gbps tr\u00ean s\u1ee3i quang \u0111\u01a1n mode, ph\u00f9 h\u1ee3p ho\u00e0n h\u1ea3o cho <strong>k\u1ebft n\u1ed1i fronthaul v\u00e0 backhaul 5G c\u0169ng nh\u01b0 trung t\u00e2m d\u1eef li\u1ec7u<\/strong>. Vi\u1ec7c hi\u1ec3u r\u00f5 <strong>s\u01a1 \u0111\u1ed3 \u0111i\u1ec1u ch\u1ebf<\/strong> n\u1ec1n t\u1ea3ng gi\u00fap l\u1ef1a ch\u1ecdn th\u00e0nh ph\u1ea7n ph\u00f9 h\u1ee3p, v\u00ed d\u1ee5 nh\u01b0 <strong>LINK-PP <\/strong><a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-26045-400g-qsfp-dd-osfp-qsfp112.htm\"><strong>QSFP-DD t\u01b0\u01a1ng th\u00edch<\/strong><\/a> cho c\u00e1c \u1ee9ng d\u1ee5ng 400G, \u0111\u1ea3m b\u1ea3o c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng c\u1ee7a b\u1ea1n \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng tr\u00ean m\u1ed9t n\u1ec1n t\u1ea3ng v\u1eefng ch\u1eafc v\u00e0 hi\u1ec7u n\u0103ng cao.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\ud83d\udca1 K\u1ebft lu\u1eadn: L\u1ef1a ch\u1ecdn c\u00f4ng c\u1ee5 ph\u00f9 h\u1ee3p cho c\u00f4ng vi\u1ec7c<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Kh\u00f4ng c\u00f3 k\u1ef9 thu\u1eadt \u0111i\u1ec1u ch\u1ebf \u201ct\u1ed1t nh\u1ea5t\u201d duy nh\u1ea5t. M\u1ed7i k\u1ef9 thu\u1eadt \u0111\u1ec1u c\u00f3 v\u1ecb tr\u00ed ri\u00eang c\u1ee7a n\u00f3:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p style=\"margin: 0px;\">S\u1eed d\u1ee5ng <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/ask-modulation-digital-communication-basics-advantages\/\"><strong>ASK<\/strong><\/a> v\u00ec t\u00ednh \u0111\u01a1n gi\u1ea3n v\u00e0 chi ph\u00ed th\u1ea5p trong c\u00e1c m\u00f4i tr\u01b0\u1eddng thu\u1eadn l\u1ee3i.<\/p><\/li><li><p style=\"margin: 0px;\">Ch\u1ecdn <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/fsk-modulation-what-it-is-how-fsk-works-digital-communication\/\"><strong>FSK<\/strong><\/a> v\u00ec c\u00e1c k\u1ebft n\u1ed1i t\u1ed1c \u0111\u1ed9 th\u1ea5p \u0111\u1ebfn trung b\u00ecnh \u0111\u00e1ng tin c\u1eady v\u00e0 ch\u1ed1ng nhi\u1ec5u.<\/p><\/li><li><p style=\"margin: 0px;\">H\u00e3y l\u1ef1a ch\u1ecdn <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/search\/?keyword=PSK\"><strong>PSK<\/strong><\/a> (v\u00e0 c\u00e1c bi\u1ebfn th\u1ec3 nh\u01b0 QAM) cho <strong>c\u00e1c \u1ee9ng d\u1ee5ng t\u1ed1c \u0111\u1ed9 cao, hi\u1ec7u su\u1ea5t cao<\/strong> nh\u01b0 m\u1ea1ng hi\u1ec7n \u0111\u1ea1i v\u00e0 <strong>h\u1ec7 th\u1ed1ng truy\u1ec1n th\u00f4ng quang<\/strong>.<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">S\u1ef1 ti\u1ebfn h\u00f3a c\u1ee7a c\u00e1c k\u1ef9 thu\u1eadt n\u00e0y ti\u1ebfp t\u1ee5c th\u00fac \u0111\u1ea9y kh\u1ea3 n\u0103ng c\u1ee7a c\u00e1c m\u1ea1ng to\u00e0n c\u1ea7u, m\u1edf r\u1ed9ng gi\u1edbi h\u1ea1n v\u1ec1 t\u1ed1c \u0111\u1ed9 v\u00e0 \u0111\u1ed9 tin c\u1eady.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>B\u1ea1n \u0111\u00e3 s\u1eb5n s\u00e0ng x\u00e2y d\u1ef1ng m\u1ed9t m\u1ea1ng nhanh h\u01a1n, \u0111\u00e1ng tin c\u1eady h\u01a1n v\u1edbi \u0111\u00fang c\u00f4ng ngh\u1ec7 c\u1ea7n thi\u1ebft?<\/strong> Kh\u00e1m ph\u00e1 <strong>LINK-PP\u2019s<\/strong> to\u00e0n b\u1ed9 d\u00f2ng b\u1ed9 thu ph\u00e1t quang hi\u1ec7u n\u0103ng cao \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 \u0111\u00e1p \u1ee9ng nhu c\u1ea7u c\u1ee7a c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng d\u1eef li\u1ec7u trong t\u01b0\u01a1ng lai.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>ch\u1ea5t l\u01b0\u1ee3ng cao, t\u01b0\u01a1ng th\u00edch v\u00e0 \u0111\u00e1ng tin c\u1eady cho c\u1ea3 \u1ee9ng d\u1ee5ng Ethernet v\u00e0 OTN. <\/strong><a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-25432-optics-transceivers-sfp-modules.htm\"><strong>Duy\u1ec7t qua c\u00e1c b\u1ed9 thu ph\u00e1t quang LINK-PP v\u00e0 t\u00ecm ngay h\u00f4m nay m\u00f4-\u0111un ho\u00e0n h\u1ea3o cho \u1ee9ng d\u1ee5ng c\u1ee7a b\u1ea1n!<\/strong><\/a><\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\ud83d\udca1 C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p (FAQ)<\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" >Ph\u01b0\u01a1ng ph\u00e1p \u0111i\u1ec1u ch\u1ebf n\u00e0o d\u1ec5 h\u1ecdc nh\u1ea5t?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1ea1n c\u00f3 th\u1ec3 b\u1eaft \u0111\u1ea7u v\u1edbi ASK. C\u00e1c m\u1ea1ch s\u1eed d\u1ee5ng c\u00e1c linh ki\u1ec7n \u0111\u01a1n gi\u1ea3n. B\u1ea1n kh\u00f4ng c\u1ea7n c\u00f4ng c\u1ee5 chuy\u00ean s\u00e2u. Nhi\u1ec1u ng\u01b0\u1eddi m\u1edbi b\u1eaft \u0111\u1ea7u ch\u1ecdn ASK cho d\u1ef1 \u00e1n kh\u00f4ng d\u00e2y \u0111\u1ea7u ti\u00ean c\u1ee7a h\u1ecd.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>M\u1eb9o: H\u00e3y th\u1eed ASK n\u1ebfu b\u1ea1n mu\u1ed1n h\u1ecdc \u0111i\u1ec1u ch\u1ebf s\u1ed1 m\u1ed9t c\u00e1ch nhanh ch\u00f3ng.<\/p><\/blockquote>\n\n\n\n<h3 class=\"wp-block-heading\" >Ph\u01b0\u01a1ng ph\u00e1p n\u00e0o ho\u1ea1t \u0111\u1ed9ng t\u1ed1t nh\u1ea5t trong m\u00f4i tr\u01b0\u1eddng c\u00f3 nhi\u1ec5u?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">FSK mang l\u1ea1i kh\u1ea3 n\u0103ng ch\u1ed1ng nhi\u1ec5u t\u1ed1t h\u01a1n. B\u1ed9 thu c\u00f3 th\u1ec3 t\u00e1ch t\u00edn hi\u1ec7u c\u1ee7a b\u1ea1n ra kh\u1ecfi nhi\u1ec5u. B\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng FSK trong c\u00e1c nh\u00e0 m\u00e1y ho\u1eb7c nh\u1eefng n\u01a1i c\u00f3 nhi\u1ec1u nhi\u1ec5u \u0111i\u1ec7n.<\/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;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\"><p>Ph\u01b0\u01a1ng ph\u00e1p<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>Kh\u1ea3 n\u0103ng ch\u1ed1ng nhi\u1ec5u<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>ASK<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Th\u1ea5p<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>FSK<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>M\u00f4i tr\u01b0\u1eddng truy\u1ec1n d\u1eabn<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>PSK<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Cao<br><\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" >T\u00f4i c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng c\u00e1c ph\u01b0\u01a1ng ph\u00e1p n\u00e0y cho c\u00e1c thi\u1ebft b\u1ecb ch\u1ea1y b\u1eb1ng pin kh\u00f4ng?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng ASK cho c\u00e1c thi\u1ebft b\u1ecb ch\u1ea1y b\u1eb1ng pin. ASK ti\u00eau th\u1ee5 \u00edt n\u0103ng l\u01b0\u1ee3ng h\u01a1n FSK ho\u1eb7c PSK. B\u1ea1n ti\u1ebft ki\u1ec7m n\u0103ng l\u01b0\u1ee3ng v\u00e0 k\u00e9o d\u00e0i tu\u1ed5i th\u1ecd pin.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>L\u01b0u \u00fd: H\u00e3y ch\u1ecdn ASK n\u1ebfu b\u1ea1n mu\u1ed1n thi\u1ebft b\u1ecb c\u1ee7a m\u00ecnh ho\u1ea1t \u0111\u1ed9ng l\u00e2u h\u01a1n tr\u00ean pin.<\/p><\/blockquote>\n\n\n\n<h3 class=\"wp-block-heading\" >Ph\u01b0\u01a1ng ph\u00e1p \u0111i\u1ec1u ch\u1ebf n\u00e0o truy\u1ec1n d\u1eef li\u1ec7u nhanh nh\u1ea5t?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">PSK truy\u1ec1n d\u1eef li\u1ec7u nhanh nh\u1ea5t. B\u1ea1n c\u00f3 th\u1ec3 nh\u00e9t nhi\u1ec1u th\u00f4ng tin h\u01a1n v\u00e0o c\u00f9ng m\u1ed9t k\u00eanh. PSK ho\u1ea1t \u0111\u1ed9ng t\u1ed1t cho Wi-Fi, v\u1ec7 tinh v\u00e0 c\u00e1c k\u1ebft n\u1ed1i t\u1ed1c \u0111\u1ed9 cao.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>PSK: T\u1ed1c \u0111\u1ed9 d\u1eef li\u1ec7u cao<\/p><\/li><li><p>FSK: T\u1ed1c \u0111\u1ed9 d\u1eef li\u1ec7u trung b\u00ecnh<\/p><\/li><li><p>ASK: T\u1ed1c \u0111\u1ed9 d\u1eef li\u1ec7u th\u1ea5p<\/p><\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>ASK th\u00edch h\u1ee3p cho c\u00e1c d\u1ef1 \u00e1n \u0111\u01a1n gi\u1ea3n v\u00e0 chi ph\u00ed th\u1ea5p, trong khi FSK ph\u00f9 h\u1ee3p v\u1edbi m\u00f4i tr\u01b0\u1eddng nhi\u1ec5u v\u00e0 PSK cung c\u1ea5p t\u1ed1c \u0111\u1ed9 truy\u1ec1n d\u1eef li\u1ec7u cao. So s\u00e1nh ASK, FSK v\u00e0 PSK t\u1ea1i \u0111\u00e2y.<\/p>","protected":false},"author":1,"featured_media":5029,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[26],"class_list":["post-5033","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-knowledge-center","tag-optics-transceivers"],"blocksy_meta":[],"acf":[],"_links":{"self":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/5033","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=5033"}],"version-history":[{"count":4,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/5033\/revisions"}],"predecessor-version":[{"id":11117,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/5033\/revisions\/11117"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/media\/5029"}],"wp:attachment":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/media?parent=5033"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/categories?post=5033"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/tags?post=5033"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}