{"id":4782,"date":"2025-09-22T10:14:00","date_gmt":"2025-09-22T03:14:00","guid":{"rendered":"https:\/\/antoanhanghai.com\/?p=4782"},"modified":"2025-09-22T10:14:00","modified_gmt":"2025-09-22T03:14:00","slug":"kiem-tra-mf-hf","status":"publish","type":"post","link":"https:\/\/antoanhanghai.com\/en\/kiem-tra-mf-hf\/","title":{"rendered":"H\u01b0\u1edbng D\u1eabn Ki\u1ec3m Tra &#038; \u0110\u00e1nh Gi\u00e1 Ch\u1ea5t L\u01b0\u1ee3ng Thi\u1ebft B\u1ecb MF\/HF \u0110\u00e3 L\u1eafp \u0110\u1eb7t"},"content":{"rendered":"<h2 data-start=\"293\" data-end=\"373\"><strong data-start=\"296\" data-end=\"373\">Ki\u1ec3m tra MF\/HF sau l\u1eafp \u0111\u1eb7t \u2013 Nh\u1eefng b\u01b0\u1edbc kh\u00f4ng th\u1ec3 b\u1ecf qua<\/strong><\/h2>\n<p data-start=\"375\" data-end=\"804\">Trong ng\u00e0nh h\u00e0ng h\u1ea3i, thi\u1ebft b\u1ecb radio MF\/HF kh\u00f4ng ch\u1ec9 l\u00e0 ph\u01b0\u01a1ng ti\u1ec7n li\u00ean l\u1ea1c th\u00f4ng th\u01b0\u1eddng, m\u00e0 c\u00f2n l\u00e0 c\u00f4ng c\u1ee5 s\u1ed1ng c\u00f2n khi t\u00e0u ho\u1ea1t \u0111\u1ed9ng ngo\u00e0i v\u00f9ng ph\u1ee7 s\u00f3ng VHF ho\u1eb7c trong t\u00ecnh hu\u1ed1ng kh\u1ea9n c\u1ea5p. L\u00e0 ng\u01b0\u1eddi tr\u1ef1c ti\u1ebfp th\u1ef1c hi\u1ec7n l\u1eafp \u0111\u1eb7t, v\u1eadn h\u00e0nh v\u00e0 b\u1ea3o tr\u00ec h\u00e0ng tr\u0103m h\u1ec7 th\u1ed1ng th\u00f4ng tin GMDSS su\u1ed1t g\u1ea7n 20 n\u0103m, t\u00f4i th\u1ea5y r\u1eb1ng <strong data-start=\"691\" data-end=\"720\">vi\u1ec7c ki\u1ec3m tra MF\/HF sau l\u1eafp \u0111\u1eb7t<\/strong> radio\u00a0 l\u00e0 kh\u00e2u c\u1ef1c k\u1ef3 quan tr\u1ecdng nh\u01b0ng l\u1ea1i th\u01b0\u1eddng b\u1ecb xem nh\u1eb9 ho\u1eb7c l\u00e0m qua loa.<\/p>\n<p data-start=\"806\" data-end=\"1102\">N\u1ebfu thi\u1ebft b\u1ecb \u0111\u01b0\u1ee3c l\u1eafp \u0111\u00fang nh\u01b0ng kh\u00f4ng ki\u1ec3m tra \u0111\u1ee7, th\u00ec v\u1eabn c\u00f3 th\u1ec3 x\u1ea3y ra l\u1ed7i nghi\u00eam tr\u1ecdng \u2013 t\u1eeb t\u00edn hi\u1ec7u y\u1ebfu \u0111\u1ebfn m\u1ea5t kh\u1ea3 n\u0103ng ph\u00e1t SOS. Sau \u0111\u00e2y l\u00e0 quy tr\u00ecnh ki\u1ec3m tra m\u00e0 t\u00f4i th\u01b0\u1eddng th\u1ef1c hi\u1ec7n \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o h\u1ec7 th\u1ed1ng v\u1eadn h\u00e0nh \u1ed5n \u0111\u1ecbnh, tu\u00e2n th\u1ee7 \u0111\u00fang ti\u00eau chu\u1ea9n qu\u1ed1c t\u1ebf v\u00e0 s\u1eb5n s\u00e0ng s\u1eed d\u1ee5ng b\u1ea5t c\u1ee9 l\u00fac n\u00e0o.<\/p>\n<h3 data-start=\"1109\" data-end=\"1163\"><strong data-start=\"1113\" data-end=\"1163\">1. Ki\u1ec3m tra k\u1ebft n\u1ed1i v\u1eadt l\u00fd v\u00e0 \u0111\u1ea5u n\u1ed1i thi\u1ebft b\u1ecb<\/strong><\/h3>\n<p data-start=\"1165\" data-end=\"1234\">Khi ho\u00e0n t\u1ea5t vi\u1ec7c l\u1eafp \u0111\u1eb7t, b\u01b0\u1edbc \u0111\u1ea7u ti\u00ean l\u00e0 ki\u1ec3m tra to\u00e0n b\u1ed9 k\u1ebft n\u1ed1i:<\/p>\n<ul data-start=\"1235\" data-end=\"1606\">\n<li data-start=\"1235\" data-end=\"1331\">\n<p data-start=\"1237\" data-end=\"1331\">\u0110\u1ea3m b\u1ea3o c\u00e1p gi\u1eefa Transceiver, Control Unit, v\u00e0 Antenna Coupler \u0111\u01b0\u1ee3c n\u1ed1i ch\u1eafc ch\u1eafn, \u0111\u00fang chu\u1ea9n.<\/p>\n<\/li>\n<li data-start=\"1332\" data-end=\"1472\">\n<p data-start=\"1334\" data-end=\"1472\">C\u00e1c d\u00e2y n\u1ed1i \u0111\u1ea5t ph\u1ea3i c\u00f3 ti\u1ebft di\u1ec7n ph\u00f9 h\u1ee3p, b\u1eaft ch\u1eb7t, kh\u00f4ng b\u1ecb oxy ho\u00e1. \u0110\u00e2y l\u00e0 y\u1ebfu t\u1ed1 s\u1ed1ng c\u00f2n v\u1edbi hi\u1ec7u qu\u1ea3 truy\u1ec1n ph\u00e1t v\u00e0 \u0111\u1ed9 an to\u00e0n \u0111i\u1ec7n.<\/p>\n<\/li>\n<li data-start=\"1473\" data-end=\"1606\">\n<p data-start=\"1475\" data-end=\"1606\">Antenna ph\u1ea3i \u0111\u00fang ch\u1ee7ng lo\u1ea1i (whip ho\u1eb7c wire), \u0111\u01b0\u1ee3c c\u00e1ch ly kh\u1ecfi c\u00e1c ngu\u1ed3n g\u00e2y nhi\u1ec5u nh\u01b0 radar, c\u00e1p \u0111i\u1ec7n cao th\u1ebf ho\u1eb7c thi\u1ebft b\u1ecb GPS.<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"1608\" data-end=\"1735\">M\u1ed9t l\u1ed7i th\u01b0\u1eddng g\u1eb7p t\u00f4i t\u1eebng th\u1ea5y l\u00e0 l\u1eafp Coupler qu\u00e1 g\u1ea7n ngu\u1ed3n \u0111i\u1ec7n 3 pha, g\u00e2y nhi\u1ec5u s\u00f3ng truy\u1ec1n d\u1eabn ho\u1eb7c l\u00e0m ch\u1eadp khi tr\u1eddi m\u01b0a.<\/p>\n<h3 data-start=\"1742\" data-end=\"1783\"><strong data-start=\"1746\" data-end=\"1783\">2. C\u00e0i \u0111\u1eb7t v\u00e0 ki\u1ec3m tra ngu\u1ed3n \u0111i\u1ec7n<\/strong><\/h3>\n<p data-start=\"1785\" data-end=\"1850\">Ki\u1ec3m tra ngu\u1ed3n c\u1ea5p cho radio \u2013 th\u01b0\u1eddng l\u00e0 <strong data-start=\"1826\" data-end=\"1836\">DC 24V<\/strong>, c\u1ea7n \u0111\u1ea3m b\u1ea3o:<\/p>\n<ul data-start=\"1851\" data-end=\"2027\">\n<li data-start=\"1851\" data-end=\"1889\">\n<p data-start=\"1853\" data-end=\"1889\">\u0110i\u1ec7n \u00e1p \u1ed5n \u0111\u1ecbnh trong d\u1ea3i 22~28V DC.<\/p>\n<\/li>\n<li data-start=\"1890\" data-end=\"1928\">\n<p data-start=\"1892\" data-end=\"1928\">D\u00e2y ngu\u1ed3n \u0111\u1ee7 ti\u1ebft di\u1ec7n, kh\u00f4ng r\u00f2 r\u1ec9.<\/p>\n<\/li>\n<li data-start=\"1929\" data-end=\"2027\">\n<p data-start=\"1931\" data-end=\"2027\">Trong tr\u01b0\u1eddng h\u1ee3p d\u00f9ng b\u1ed9 chuy\u1ec3n AC\/DC, n\u00ean ki\u1ec3m tra t\u1ea3i v\u00e0 th\u1eddi gian \u0111\u00e1p \u1ee9ng khi m\u1ea5t \u0111i\u1ec7n ch\u00ednh.<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"2029\" data-end=\"2089\">C\u1ea7n \u0111o \u0111i\u1ec7n \u00e1p t\u1ea1i \u0111i\u1ec3m v\u00e0o thi\u1ebft b\u1ecb, kh\u00f4ng ch\u1ec9 \u1edf \u0111\u1ea7u ngu\u1ed3n.<\/p>\n<h3 data-start=\"2096\" data-end=\"2154\"><strong data-start=\"2100\" data-end=\"2154\">3. Ki\u1ec3m tra kh\u1ea3 n\u0103ng ph\u00e1t t\u00edn hi\u1ec7u \u2013 Tuning &amp; VSWR<\/strong><\/h3>\n<p data-start=\"2156\" data-end=\"2272\">\u0110\u00e2y l\u00e0 ph\u1ea7n c\u1ed1t l\u00f5i. M\u1ed7i l\u1ea7n thay \u0111\u1ed5i t\u1ea7n s\u1ed1, thi\u1ebft b\u1ecb s\u1ebd t\u1ef1 \u0111\u1ed9ng \u201ctune\u201d \u0111\u1ec3 kh\u1edbp tr\u1edf kh\u00e1ng gi\u1eefa m\u00e1y ph\u00e1t v\u00e0 antenna.<\/p>\n<p data-start=\"2274\" data-end=\"2295\">L\u00fac n\u00e0y c\u1ea7n theo d\u00f5i:<\/p>\n<ul data-start=\"2296\" data-end=\"2476\">\n<li data-start=\"2296\" data-end=\"2325\">\n<p data-start=\"2298\" data-end=\"2325\">K\u1ebft qu\u1ea3 tuning (PASS\/FAIL).<\/p>\n<\/li>\n<li data-start=\"2326\" data-end=\"2357\">\n<p data-start=\"2328\" data-end=\"2357\">M\u1ee9c c\u00f4ng su\u1ea5t ra (PA Status).<\/p>\n<\/li>\n<li data-start=\"2358\" data-end=\"2476\">\n<p data-start=\"2360\" data-end=\"2476\">T\u1ef7 s\u1ed1 s\u00f3ng \u0111\u1ee9ng (VSWR) \u2013 n\u00ean &lt; 2.0 l\u00e0 l\u00fd t\u01b0\u1edfng, tr\u00ean 3.0 l\u00e0 b\u1ea5t th\u01b0\u1eddng, c\u1ea7n ki\u1ec3m tra l\u1ea1i c\u00e1p antenna ho\u1eb7c ti\u1ebfp \u0111i\u1ec3m.<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"2478\" data-end=\"2589\">Nhi\u1ec1u l\u1ea7n t\u00f4i x\u1eed l\u00fd VSWR cao do n\u01b0\u1edbc v\u00e0o kh\u1edbp n\u1ed1i antenna, ho\u1eb7c c\u00e1p feeder b\u1ecb k\u1eb9p g\u00e3y trong qu\u00e1 tr\u00ecnh thi c\u00f4ng.<\/p>\n<h3 data-start=\"2596\" data-end=\"2669\"><strong data-start=\"2600\" data-end=\"2669\">4. Th\u1ef1c hi\u1ec7n t\u1ef1 ki\u1ec3m tra n\u1ed9i b\u1ed9 (Built-in self test \/ Daily Test)<\/strong><\/h3>\n<p data-start=\"2671\" data-end=\"2825\">Ph\u1ea7n l\u1edbn thi\u1ebft b\u1ecb MF\/HF \u0111\u1eddi m\u1edbi \u0111\u1ec1u c\u00f3 m\u1ee5c \u201cDaily Test\u201d ho\u1eb7c \u201cSelf Test\u201d trong menu ng\u01b0\u1eddi d\u00f9ng. T\u00f4i khuy\u1ebfn kh\u00edch k\u00edch ho\u1ea1t t\u00ednh n\u0103ng n\u00e0y sau khi l\u1eafp xong.<\/p>\n<p data-start=\"2827\" data-end=\"2851\">Test n\u00e0y th\u01b0\u1eddng bao g\u1ed3m:<\/p>\n<ul data-start=\"2852\" data-end=\"2977\">\n<li data-start=\"2852\" data-end=\"2882\">\n<p data-start=\"2854\" data-end=\"2882\">Ki\u1ec3m tra c\u00f4ng su\u1ea5t ph\u00e1t (PA)<\/p>\n<\/li>\n<li data-start=\"2883\" data-end=\"2906\">\n<p data-start=\"2885\" data-end=\"2906\">Ki\u1ec3m tra b\u1ed9 l\u1ecdc (FIL)<\/p>\n<\/li>\n<li data-start=\"2907\" data-end=\"2944\">\n<p data-start=\"2909\" data-end=\"2944\">Ki\u1ec3m tra h\u1ec7 th\u1ed1ng g\u1ecdi ch\u1ecdn s\u1ed1 (DSC)<\/p>\n<\/li>\n<li data-start=\"2945\" data-end=\"2977\">\n<p data-start=\"2947\" data-end=\"2977\">Ki\u1ec3m tra t\u00edn hi\u1ec7u \u0111\u1ea7u v\u00e0o GNSS<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"2979\" data-end=\"3075\">N\u1ebfu thi\u1ebft b\u1ecb c\u00f3 ch\u1ee9c n\u0103ng l\u01b0u k\u1ebft qu\u1ea3 test, n\u00ean in ho\u1eb7c ch\u1ee5p l\u1ea1i l\u00e0m h\u1ed3 s\u01a1 b\u00e0n giao cho ch\u1ee7 t\u00e0u.<\/p>\n<h3 data-start=\"3082\" data-end=\"3146\"><strong data-start=\"3086\" data-end=\"3146\">5. Ki\u1ec3m tra ch\u1ee9c n\u0103ng DSC \u2013 G\u1ecdi th\u1eed c\u00e1c k\u00eanh th\u01b0\u1eddng d\u00f9ng<\/strong><\/h3>\n<p data-start=\"3148\" data-end=\"3315\">V\u00e0o menu DSC, t\u00f4i th\u01b0\u1eddng t\u1ea1o m\u1ed9t cu\u1ed9c g\u1ecdi test (Test Call ho\u1eb7c Individual Call) t\u1edbi m\u1ed9t m\u00e1y kh\u00e1c trong x\u01b0\u1edfng ho\u1eb7c \u0111\u1ebfn m\u1ed9t thi\u1ebft b\u1ecb DSC gi\u1ea3 l\u1eadp. C\u00e1c t\u1ea7n s\u1ed1 c\u1ea7n th\u1eed g\u1ed3m:<\/p>\n<ul data-start=\"3316\" data-end=\"3390\">\n<li data-start=\"3316\" data-end=\"3339\">\n<p data-start=\"3318\" data-end=\"3339\">2187.5 kHz (b\u1eaft bu\u1ed9c)<\/p>\n<\/li>\n<li data-start=\"3340\" data-end=\"3390\">\n<p data-start=\"3342\" data-end=\"3390\">M\u1ed9t s\u1ed1 t\u1ea7n kh\u00e1c nh\u01b0 4207.5 \/ 8414.5 kHz (n\u1ebfu c\u00f3)<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"3392\" data-end=\"3405\">C\u1ea7n x\u00e1c minh:<\/p>\n<ul data-start=\"3406\" data-end=\"3531\">\n<li data-start=\"3406\" data-end=\"3442\">\n<p data-start=\"3408\" data-end=\"3442\">Thi\u1ebft b\u1ecb ph\u00e1t t\u00edn hi\u1ec7u \u0111\u00fang t\u1ea7n s\u1ed1<\/p>\n<\/li>\n<li data-start=\"3443\" data-end=\"3493\">\n<p data-start=\"3445\" data-end=\"3493\">Thi\u1ebft b\u1ecb kh\u00e1c nh\u1eadn \u0111\u01b0\u1ee3c t\u00edn hi\u1ec7u v\u00e0 ph\u1ea3n h\u1ed3i DSC<\/p>\n<\/li>\n<li data-start=\"3494\" data-end=\"3531\">\n<p data-start=\"3496\" data-end=\"3531\">Nh\u1eadt k\u00fd ghi \u0111\u00fang th\u00f4ng tin g\u1eedi\/nh\u1eadn<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"3533\" data-end=\"3600\">\u0110\u1eebng qu\u00ean ki\u1ec3m tra c\u1ea3 \u00e2m thanh b\u00e1o \u0111\u1ed9ng, n\u1ebfu c\u00f3 k\u1ebft n\u1ed1i Alarm Unit.<\/p>\n<h3 data-start=\"3607\" data-end=\"3684\"><strong data-start=\"3611\" data-end=\"3684\">6. \u0110\u00e1nh gi\u00e1 giao di\u1ec7n \u0111i\u1ec1u khi\u1ec3n \u2013 \u0110\u1ea3m b\u1ea3o d\u1ec5 s\u1eed d\u1ee5ng cho thuy\u1ec1n vi\u00ean<\/strong><\/h3>\n<p data-start=\"3686\" data-end=\"3704\">T\u00f4i lu\u00f4n ki\u1ec3m tra:<\/p>\n<ul data-start=\"3705\" data-end=\"3943\">\n<li data-start=\"3705\" data-end=\"3748\">\n<p data-start=\"3707\" data-end=\"3748\">\u0110\u1ed9 nh\u1ea1y c\u1ee7a n\u00fat b\u1ea5m ho\u1eb7c m\u00e0n h\u00ecnh c\u1ea3m \u1ee9ng<\/p>\n<\/li>\n<li data-start=\"3749\" data-end=\"3807\">\n<p data-start=\"3751\" data-end=\"3807\">\u0110\u1ed9 s\u00e1ng v\u00e0 t\u01b0\u01a1ng ph\u1ea3n m\u00e0n h\u00ecnh \u1edf ch\u1ebf \u0111\u1ed9 ban ng\u00e0y\/ban \u0111\u00eam<\/p>\n<\/li>\n<li data-start=\"3808\" data-end=\"3850\">\n<p data-start=\"3810\" data-end=\"3850\">T\u1ed1c \u0111\u1ed9 ph\u1ea3n h\u1ed3i khi chuy\u1ec3n gi\u1eefa c\u00e1c menu<\/p>\n<\/li>\n<li data-start=\"3851\" data-end=\"3943\">\n<p data-start=\"3853\" data-end=\"3943\">Thao t\u00e1c g\u1ecdi kh\u1ea9n c\u1ea5p b\u1eb1ng n\u00fat DISTRESS c\u00f3 nhanh v\u00e0 r\u00f5 r\u00e0ng kh\u00f4ng (nh\u01b0ng KH\u00d4NG ph\u00e1t th\u1eadt!)<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"3945\" data-end=\"4043\">N\u1ebfu c\u00f3 th\u1ec3, t\u00f4i h\u01b0\u1edbng d\u1eabn tr\u1ef1c ti\u1ebfp thuy\u1ec1n vi\u00ean s\u1eed d\u1ee5ng thi\u1ebft b\u1ecb v\u00e0 th\u1ef1c hi\u1ec7n 1 cu\u1ed9c g\u1ecdi m\u00f4 ph\u1ecfng.<\/p>\n<h3 data-start=\"4050\" data-end=\"4107\"><strong data-start=\"4054\" data-end=\"4107\">7. Ghi nh\u1eadn th\u00f4ng tin h\u1ec7 th\u1ed1ng v\u00e0 nh\u1eadt k\u00fd c\u00e0i \u0111\u1eb7t<\/strong><\/h3>\n<p data-start=\"4109\" data-end=\"4144\">Sau khi m\u1ecdi ki\u1ec3m tra ho\u00e0n t\u1ea5t, c\u1ea7n:<\/p>\n<ul data-start=\"4145\" data-end=\"4279\">\n<li data-start=\"4145\" data-end=\"4184\">\n<p data-start=\"4147\" data-end=\"4184\">Ghi nh\u1eadn phi\u00ean b\u1ea3n ph\u1ea7n m\u1ec1m \u0111ang d\u00f9ng<\/p>\n<\/li>\n<li data-start=\"4185\" data-end=\"4225\">\n<p data-start=\"4187\" data-end=\"4225\">Ki\u1ec3m tra v\u00e0 x\u00e1c nh\u1eadn MMSI \u0111\u00e3 nh\u1eadp \u0111\u00fang<\/p>\n<\/li>\n<li data-start=\"4226\" data-end=\"4279\">\n<p data-start=\"4228\" data-end=\"4279\">In nh\u1eadt k\u00fd DSC n\u1ebfu c\u00f3 m\u00e1y in, ho\u1eb7c l\u01b0u file \u0111i\u1ec7n t\u1eed<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"4281\" data-end=\"4365\">T\u1ea5t c\u1ea3 c\u00e1c th\u00f4ng tin n\u00e0y s\u1ebd h\u1ed7 tr\u1ee3 r\u1ea5t nhi\u1ec1u khi thi\u1ebft b\u1ecb g\u1eb7p s\u1ef1 c\u1ed1 trong t\u01b0\u01a1ng lai.<\/p>\n<h3 data-start=\"4372\" data-end=\"4388\"><strong data-start=\"4376\" data-end=\"4388\">K\u1ebft lu\u1eadn<\/strong><\/h3>\n<p data-start=\"4390\" data-end=\"4759\">Ki\u1ec3m tra MF\/HF sau l\u1eafp \u0111\u1eb7t kh\u00f4ng \u0111\u01a1n thu\u1ea7n l\u00e0 b\u1eadt ngu\u1ed3n xem c\u00f3 ho\u1ea1t \u0111\u1ed9ng hay kh\u00f4ng. \u0110\u00f3 l\u00e0 qu\u00e1 tr\u00ecnh \u0111\u00e1nh gi\u00e1 to\u00e0n di\u1ec7n t\u1eeb ph\u1ea7n c\u1ee9ng, ph\u1ea7n m\u1ec1m, s\u00f3ng v\u00f4 tuy\u1ebfn cho \u0111\u1ebfn kh\u1ea3 n\u0103ng v\u1eadn h\u00e0nh th\u1ef1c t\u1ebf. V\u1edbi nh\u1eefng con t\u00e0u ph\u1ea3i v\u01b0\u1ee3t tr\u00f9ng kh\u01a1i, kh\u00f4ng c\u00f3 c\u01a1 h\u1ed9i s\u1eeda sai. H\u00e3y ch\u1eafc ch\u1eafn r\u1eb1ng thi\u1ebft b\u1ecb th\u00f4ng tin c\u1ee7a b\u1ea1n kh\u00f4ng ch\u1ec9 \u0111\u01b0\u1ee3c l\u1eafp \u0111\u00fang \u2013 m\u00e0 c\u00f2n \u0111\u01b0\u1ee3c ki\u1ec3m tra \u0111\u00fang c\u00e1ch.<\/p>\n<h3><strong>H\u00e3y li\u00ean h\u1ec7 ngay v\u1edbi ch\u00fang t\u00f4i \u0111\u1ec3 nh\u1eadn t\u01b0 v\u1ea5n chi ti\u1ebft v\u1ec1 s\u1ea3n ph\u1ea9m MF HF : 097 800 1968 ( ZALO\/DT)<\/strong><\/h3>\n<p><a href=\"https:\/\/antoanhanghai.com\/en\/tieu-chuan-cho-mfhf-msc-512105\/\">Ti\u00eau chu\u1ea9n IMO v\u1ec1 MF\/HF<\/a><\/p>\n<p><a href=\"https:\/\/antoanhanghai.com\/en\/bo-phan-mf-hf\/\">Nghi\u00ean c\u1ee9u c\u00e1c b\u1ed9 ph\u1eadn c\u1ee7a MF\/HF<\/a><\/p>\n<p class=\"elementor-heading-title elementor-size-default\"><a href=\"https:\/\/antoanhanghai.com\/en\/chon-mf-hf\/\">H\u01b0\u1edbng D\u1eabn L\u1ef1a Ch\u1ecdn MF\/HF Theo Ti\u00eau Chu\u1ea9n IMO M\u1edbi 2024<\/a><\/p>\n<p><a href=\"https:\/\/antoanhanghai.com\/en\/thiet-bi-mf-hf\/\">C\u01a1 b\u1ea3n v\u1ec1 thi\u1ebft b\u1ecb MF\/HF<\/a><\/p>\n<p><a href=\"https:\/\/youtu.be\/30lyLlKDW_Y?si=UBCH6NGl3yhqLxfQ\" target=\"_blank\" rel=\"noopener\">Video Unbox S\u1ea3n ph\u1ea9m<\/a><\/p>\n<p><a href=\"https:\/\/www.youtube.com\/watch?v=_qb1AfGHh7E\" target=\"_blank\" rel=\"noopener\">Video c\u1ee7a Th\u1ee7y Th\u1ee7 H\u01b0\u1edbng D\u1eabn Test MF\/HF<\/a><\/p>\n<div>LINK<\/div>\n<div>\n<div><a href=\"https:\/\/www.dnv.com\/maritime\/ship-classification\/\" target=\"_blank\" rel=\"noopener\">DNV<\/a><\/div>\n<div><a href=\"https:\/\/ww2.eagle.org\/en.html\" target=\"_blank\" rel=\"noopener\">ABS<\/a><\/div>\n<div><a href=\"https:\/\/www.classnk.or.jp\/hp\/en\/index.html\" target=\"_blank\" rel=\"noopener\">NK<\/a><\/div>\n<div><a href=\"https:\/\/antoanhanghai.com\/en\/tieu-chuan-cho-phan-xa-radar-msc-510105\/\" target=\"_blank\" rel=\"noopener\">CCS<\/a><\/div>\n<div><a href=\"http:\/\/www.vr.org.vn\/\" target=\"_blank\" rel=\"noopener\">VR<\/a><\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Ki\u1ec3m tra MF\/HF sau l\u1eafp \u0111\u1eb7t \u2013 Nh\u1eefng b\u01b0\u1edbc kh\u00f4ng th\u1ec3 b\u1ecf qua Trong ng\u00e0nh h\u00e0ng h\u1ea3i, thi\u1ebft b\u1ecb radio MF\/HF kh\u00f4ng ch\u1ec9 l\u00e0 ph\u01b0\u01a1ng ti\u1ec7n li\u00ean l\u1ea1c th\u00f4ng th\u01b0\u1eddng, m\u00e0 c\u00f2n l\u00e0 c\u00f4ng c\u1ee5 s\u1ed1ng c\u00f2n khi t\u00e0u ho\u1ea1t \u0111\u1ed9ng ngo\u00e0i v\u00f9ng ph\u1ee7 s\u00f3ng VHF ho\u1eb7c trong t\u00ecnh hu\u1ed1ng kh\u1ea9n c\u1ea5p. L\u00e0 ng\u01b0\u1eddi tr\u1ef1c ti\u1ebfp th\u1ef1c hi\u1ec7n l\u1eafp \u0111\u1eb7t, v\u1eadn h\u00e0nh v\u00e0 b\u1ea3o tr\u00ec h\u00e0ng tr\u0103m h\u1ec7 th\u1ed1ng th\u00f4ng tin GMDSS su\u1ed1t g\u1ea7n 20 n\u0103m, t\u00f4i th\u1ea5y r\u1eb1ng vi\u1ec7c ki\u1ec3m tra MF\/HF sau l\u1eafp \u0111\u1eb7t radio\u00a0 l\u00e0 kh\u00e2u c\u1ef1c k\u1ef3 quan tr\u1ecdng nh\u01b0ng l\u1ea1i th\u01b0\u1eddng b\u1ecb xem nh\u1eb9 ho\u1eb7c l\u00e0m qua loa. N\u1ebfu thi\u1ebft b\u1ecb \u0111\u01b0\u1ee3c l\u1eafp \u0111\u00fang nh\u01b0ng kh\u00f4ng ki\u1ec3m tra \u0111\u1ee7, th\u00ec v\u1eabn c\u00f3 th\u1ec3 x\u1ea3y ra l\u1ed7i nghi\u00eam tr\u1ecdng \u2013 t\u1eeb t\u00edn hi\u1ec7u y\u1ebfu \u0111\u1ebfn m\u1ea5t kh\u1ea3 n\u0103ng ph\u00e1t SOS. Sau \u0111\u00e2y l\u00e0 quy tr\u00ecnh ki\u1ec3m tra m\u00e0 t\u00f4i th\u01b0\u1eddng th\u1ef1c hi\u1ec7n \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o h\u1ec7 th\u1ed1ng v\u1eadn h\u00e0nh \u1ed5n \u0111\u1ecbnh, tu\u00e2n th\u1ee7 \u0111\u00fang ti\u00eau chu\u1ea9n qu\u1ed1c t\u1ebf v\u00e0 s\u1eb5n s\u00e0ng s\u1eed d\u1ee5ng b\u1ea5t c\u1ee9 l\u00fac n\u00e0o. 1. Ki\u1ec3m tra k\u1ebft n\u1ed1i v\u1eadt l\u00fd v\u00e0 \u0111\u1ea5u n\u1ed1i thi\u1ebft b\u1ecb Khi ho\u00e0n t\u1ea5t vi\u1ec7c l\u1eafp \u0111\u1eb7t, b\u01b0\u1edbc \u0111\u1ea7u ti\u00ean l\u00e0 ki\u1ec3m tra to\u00e0n b\u1ed9 k\u1ebft n\u1ed1i: \u0110\u1ea3m b\u1ea3o c\u00e1p gi\u1eefa Transceiver, Control Unit, v\u00e0 Antenna Coupler \u0111\u01b0\u1ee3c n\u1ed1i ch\u1eafc ch\u1eafn, \u0111\u00fang chu\u1ea9n. C\u00e1c d\u00e2y n\u1ed1i \u0111\u1ea5t ph\u1ea3i c\u00f3 ti\u1ebft di\u1ec7n ph\u00f9 h\u1ee3p, b\u1eaft ch\u1eb7t, kh\u00f4ng b\u1ecb oxy ho\u00e1. \u0110\u00e2y l\u00e0 y\u1ebfu t\u1ed1 s\u1ed1ng c\u00f2n v\u1edbi hi\u1ec7u qu\u1ea3 truy\u1ec1n ph\u00e1t v\u00e0 \u0111\u1ed9 an to\u00e0n \u0111i\u1ec7n. Antenna ph\u1ea3i \u0111\u00fang ch\u1ee7ng lo\u1ea1i (whip ho\u1eb7c wire), \u0111\u01b0\u1ee3c c\u00e1ch ly kh\u1ecfi c\u00e1c ngu\u1ed3n g\u00e2y nhi\u1ec5u nh\u01b0 radar, c\u00e1p \u0111i\u1ec7n cao th\u1ebf ho\u1eb7c thi\u1ebft b\u1ecb GPS. M\u1ed9t l\u1ed7i th\u01b0\u1eddng g\u1eb7p t\u00f4i t\u1eebng th\u1ea5y l\u00e0 l\u1eafp Coupler qu\u00e1 g\u1ea7n ngu\u1ed3n \u0111i\u1ec7n 3 pha, g\u00e2y nhi\u1ec5u s\u00f3ng truy\u1ec1n d\u1eabn ho\u1eb7c l\u00e0m ch\u1eadp khi tr\u1eddi m\u01b0a. 2. C\u00e0i \u0111\u1eb7t v\u00e0 ki\u1ec3m tra ngu\u1ed3n \u0111i\u1ec7n Ki\u1ec3m tra ngu\u1ed3n c\u1ea5p cho radio \u2013 th\u01b0\u1eddng l\u00e0 DC 24V, c\u1ea7n \u0111\u1ea3m b\u1ea3o: \u0110i\u1ec7n \u00e1p \u1ed5n \u0111\u1ecbnh trong d\u1ea3i 22~28V DC. D\u00e2y ngu\u1ed3n \u0111\u1ee7 ti\u1ebft di\u1ec7n, kh\u00f4ng r\u00f2 r\u1ec9. Trong tr\u01b0\u1eddng h\u1ee3p d\u00f9ng b\u1ed9 chuy\u1ec3n AC\/DC, n\u00ean ki\u1ec3m tra t\u1ea3i v\u00e0 th\u1eddi gian \u0111\u00e1p \u1ee9ng khi m\u1ea5t \u0111i\u1ec7n ch\u00ednh. C\u1ea7n \u0111o \u0111i\u1ec7n \u00e1p t\u1ea1i \u0111i\u1ec3m v\u00e0o thi\u1ebft b\u1ecb, kh\u00f4ng ch\u1ec9 \u1edf \u0111\u1ea7u ngu\u1ed3n. 3. Ki\u1ec3m tra kh\u1ea3 n\u0103ng ph\u00e1t t\u00edn hi\u1ec7u \u2013 Tuning &amp; VSWR \u0110\u00e2y l\u00e0 ph\u1ea7n c\u1ed1t l\u00f5i. M\u1ed7i l\u1ea7n thay \u0111\u1ed5i t\u1ea7n s\u1ed1, thi\u1ebft b\u1ecb s\u1ebd t\u1ef1 \u0111\u1ed9ng \u201ctune\u201d \u0111\u1ec3 kh\u1edbp tr\u1edf kh\u00e1ng gi\u1eefa m\u00e1y ph\u00e1t v\u00e0 antenna. L\u00fac n\u00e0y c\u1ea7n theo d\u00f5i: K\u1ebft qu\u1ea3 tuning (PASS\/FAIL). M\u1ee9c c\u00f4ng su\u1ea5t ra (PA Status). T\u1ef7 s\u1ed1 s\u00f3ng \u0111\u1ee9ng (VSWR) \u2013 n\u00ean &lt; 2.0 l\u00e0 l\u00fd t\u01b0\u1edfng, tr\u00ean 3.0 l\u00e0 b\u1ea5t th\u01b0\u1eddng, c\u1ea7n ki\u1ec3m tra l\u1ea1i c\u00e1p antenna ho\u1eb7c ti\u1ebfp \u0111i\u1ec3m. Nhi\u1ec1u l\u1ea7n t\u00f4i x\u1eed l\u00fd VSWR cao do n\u01b0\u1edbc v\u00e0o kh\u1edbp n\u1ed1i antenna, ho\u1eb7c c\u00e1p feeder b\u1ecb k\u1eb9p g\u00e3y trong qu\u00e1 tr\u00ecnh thi c\u00f4ng. 4. Th\u1ef1c hi\u1ec7n t\u1ef1 ki\u1ec3m tra n\u1ed9i b\u1ed9 (Built-in self test \/ Daily Test) Ph\u1ea7n l\u1edbn thi\u1ebft b\u1ecb MF\/HF \u0111\u1eddi m\u1edbi \u0111\u1ec1u c\u00f3 m\u1ee5c \u201cDaily Test\u201d ho\u1eb7c \u201cSelf Test\u201d trong menu ng\u01b0\u1eddi d\u00f9ng. T\u00f4i khuy\u1ebfn kh\u00edch k\u00edch ho\u1ea1t t\u00ednh n\u0103ng n\u00e0y sau khi l\u1eafp xong. Test n\u00e0y th\u01b0\u1eddng bao g\u1ed3m: Ki\u1ec3m tra c\u00f4ng su\u1ea5t ph\u00e1t (PA) Ki\u1ec3m tra b\u1ed9 l\u1ecdc (FIL) Ki\u1ec3m tra h\u1ec7 th\u1ed1ng g\u1ecdi ch\u1ecdn s\u1ed1 (DSC) Ki\u1ec3m tra t\u00edn hi\u1ec7u \u0111\u1ea7u v\u00e0o GNSS N\u1ebfu thi\u1ebft b\u1ecb c\u00f3 ch\u1ee9c n\u0103ng l\u01b0u k\u1ebft qu\u1ea3 test, n\u00ean in ho\u1eb7c ch\u1ee5p l\u1ea1i l\u00e0m h\u1ed3 s\u01a1 b\u00e0n giao cho ch\u1ee7 t\u00e0u. 5. Ki\u1ec3m tra ch\u1ee9c n\u0103ng DSC \u2013 G\u1ecdi th\u1eed c\u00e1c k\u00eanh th\u01b0\u1eddng d\u00f9ng V\u00e0o menu DSC, t\u00f4i th\u01b0\u1eddng t\u1ea1o m\u1ed9t cu\u1ed9c g\u1ecdi test (Test Call ho\u1eb7c Individual Call) t\u1edbi m\u1ed9t m\u00e1y kh\u00e1c trong x\u01b0\u1edfng ho\u1eb7c \u0111\u1ebfn m\u1ed9t thi\u1ebft b\u1ecb DSC gi\u1ea3 l\u1eadp. C\u00e1c t\u1ea7n s\u1ed1 c\u1ea7n th\u1eed g\u1ed3m: 2187.5 kHz (b\u1eaft bu\u1ed9c) M\u1ed9t s\u1ed1 t\u1ea7n kh\u00e1c nh\u01b0 4207.5 \/ 8414.5 kHz (n\u1ebfu c\u00f3) C\u1ea7n x\u00e1c minh: Thi\u1ebft b\u1ecb ph\u00e1t t\u00edn hi\u1ec7u \u0111\u00fang t\u1ea7n s\u1ed1 Thi\u1ebft b\u1ecb kh\u00e1c nh\u1eadn \u0111\u01b0\u1ee3c t\u00edn hi\u1ec7u v\u00e0 ph\u1ea3n h\u1ed3i DSC Nh\u1eadt k\u00fd ghi \u0111\u00fang th\u00f4ng tin g\u1eedi\/nh\u1eadn \u0110\u1eebng qu\u00ean ki\u1ec3m tra c\u1ea3 \u00e2m thanh b\u00e1o \u0111\u1ed9ng, n\u1ebfu c\u00f3 k\u1ebft n\u1ed1i Alarm Unit. 6. \u0110\u00e1nh gi\u00e1 giao di\u1ec7n \u0111i\u1ec1u khi\u1ec3n \u2013 \u0110\u1ea3m b\u1ea3o d\u1ec5 s\u1eed d\u1ee5ng cho thuy\u1ec1n vi\u00ean T\u00f4i lu\u00f4n ki\u1ec3m tra: \u0110\u1ed9 nh\u1ea1y c\u1ee7a n\u00fat b\u1ea5m ho\u1eb7c m\u00e0n h\u00ecnh c\u1ea3m \u1ee9ng \u0110\u1ed9 s\u00e1ng v\u00e0 t\u01b0\u01a1ng ph\u1ea3n m\u00e0n h\u00ecnh \u1edf ch\u1ebf \u0111\u1ed9 ban ng\u00e0y\/ban \u0111\u00eam T\u1ed1c \u0111\u1ed9 ph\u1ea3n h\u1ed3i khi chuy\u1ec3n gi\u1eefa c\u00e1c menu Thao t\u00e1c g\u1ecdi kh\u1ea9n c\u1ea5p b\u1eb1ng n\u00fat DISTRESS c\u00f3 nhanh v\u00e0 r\u00f5 r\u00e0ng kh\u00f4ng (nh\u01b0ng KH\u00d4NG ph\u00e1t th\u1eadt!) N\u1ebfu c\u00f3 th\u1ec3, t\u00f4i h\u01b0\u1edbng d\u1eabn tr\u1ef1c ti\u1ebfp thuy\u1ec1n vi\u00ean s\u1eed d\u1ee5ng thi\u1ebft b\u1ecb v\u00e0 th\u1ef1c hi\u1ec7n 1 cu\u1ed9c g\u1ecdi m\u00f4 ph\u1ecfng. 7. Ghi nh\u1eadn th\u00f4ng tin h\u1ec7 th\u1ed1ng v\u00e0 nh\u1eadt k\u00fd c\u00e0i \u0111\u1eb7t Sau khi m\u1ecdi ki\u1ec3m tra ho\u00e0n t\u1ea5t, c\u1ea7n: Ghi nh\u1eadn phi\u00ean b\u1ea3n ph\u1ea7n m\u1ec1m \u0111ang d\u00f9ng Ki\u1ec3m tra v\u00e0 x\u00e1c nh\u1eadn MMSI \u0111\u00e3 nh\u1eadp \u0111\u00fang In nh\u1eadt k\u00fd DSC n\u1ebfu c\u00f3 m\u00e1y in, ho\u1eb7c l\u01b0u file \u0111i\u1ec7n t\u1eed T\u1ea5t c\u1ea3 c\u00e1c th\u00f4ng tin n\u00e0y s\u1ebd h\u1ed7 tr\u1ee3 r\u1ea5t nhi\u1ec1u khi thi\u1ebft b\u1ecb g\u1eb7p s\u1ef1 c\u1ed1 trong t\u01b0\u01a1ng lai. K\u1ebft lu\u1eadn Ki\u1ec3m tra MF\/HF sau l\u1eafp \u0111\u1eb7t kh\u00f4ng \u0111\u01a1n thu\u1ea7n l\u00e0 b\u1eadt ngu\u1ed3n xem c\u00f3 ho\u1ea1t \u0111\u1ed9ng hay kh\u00f4ng. \u0110\u00f3 l\u00e0 qu\u00e1 tr\u00ecnh \u0111\u00e1nh gi\u00e1 to\u00e0n di\u1ec7n t\u1eeb ph\u1ea7n c\u1ee9ng, ph\u1ea7n m\u1ec1m, s\u00f3ng v\u00f4 tuy\u1ebfn cho \u0111\u1ebfn kh\u1ea3 n\u0103ng v\u1eadn h\u00e0nh th\u1ef1c t\u1ebf. V\u1edbi nh\u1eefng con t\u00e0u ph\u1ea3i v\u01b0\u1ee3t tr\u00f9ng kh\u01a1i, kh\u00f4ng c\u00f3 c\u01a1 h\u1ed9i s\u1eeda sai. H\u00e3y ch\u1eafc ch\u1eafn r\u1eb1ng thi\u1ebft b\u1ecb th\u00f4ng tin c\u1ee7a b\u1ea1n kh\u00f4ng ch\u1ec9 \u0111\u01b0\u1ee3c l\u1eafp \u0111\u00fang \u2013 m\u00e0 c\u00f2n \u0111\u01b0\u1ee3c ki\u1ec3m tra \u0111\u00fang c\u00e1ch. 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