{"id":10983,"date":"2016-12-08T19:34:19","date_gmt":"2016-12-09T04:34:19","guid":{"rendered":""},"modified":"-0001-11-30T00:00:00","modified_gmt":"-0001-11-29T15:00:00","slug":"","status":"publish","type":"post","link":"http:\/\/w3devlabs.net\/wp\/?p=10983","title":{"rendered":"[\uc815\ubcf4\ud1b5\uc2e0\uc6a9\uc5b4] \uc570\ud504\uc2a4 \uc774\ub3d9 \uc804\ud654 \ubc29\uc2dd"},"content":{"rendered":"<p><h1>AMPS (advanced mobile phone service)  &#8211;  \uc570\ud504\uc2a4 \uc774\ub3d9 \uc804\ud654 \ubc29\uc2dd<\/h1>\n<\/p>\n<p>AMPS[\uc570\ud504\uc2a4]\ub294 \ubbf8\uad6d \ub0b4\uc5d0\uc11c \uc544\ub0a0\ub85c\uadf8 \uc2e0\ud638 \uc140\ub8f0\ub7ec\ud3f0 \uc11c\ube44\uc2a4\ub97c \uc704\ud55c \ud45c\uc900 \uc2dc\uc2a4\ud15c\uc774\uc9c0\ub9cc, \ub2e4\ub978 \ub098\ub77c\ub4e4\uc5d0\uc11c\ub3c4 \uc0ac\uc6a9\ub41c\ub2e4. <\/p>\n<p>\uc774\uac83\uc740 1970\ub144\uc5d0 \ubbf8\uad6d \uc5f0\ubc29\ud1b5\uc2e0\uc704\uc6d0\ud68c\uc5d0 \uc758\ud55c \uc140\ub8f0\ub7ec \uc11c\ube44\uc2a4\ub97c \uc704\ud55c \ucd5c\ucd08\uc758 \uc804\uc790\uae30 \ubcf5\uc0ac \uc2a4\ud399\ud2b8\ub7fc\uc5d0 \uae30\ubc18\uc744 \ub450\uace0 \uc788\ub2e4. <\/p>\n<p>1983\ub144\uc5d0 AT&#038;T\uc5d0 \uc758\ud574 \uc18c\uac1c\ub41c AMPS\ub294 \ubbf8\uad6d \ub0b4\uc5d0\uc11c \uc544\uc9c1\ub3c4 \uac00\uc7a5 \uad11\ubc94\uc704\ud558\uac8c \ucc44\uc6a9\ub41c \uc140\ub8f0\ub7ec \uc2dc\uc2a4\ud15c\uc774\ub2e4. <\/p>\n<p>AMPS\ub294 800~900 MHz \uc8fc\ud30c\uc218 \ub300\uc5ed\uc744 \uc140\ub8f0\ub7ec\ud3f0\uc5d0 \ud560\ub2f9\ud55c\ub2e4. <\/p>\n<p>\uac01 \uc11c\ube44\uc2a4\uc5c5\uccb4\ub4e4\uc740 824~849 MHz \ubc94\uc704\ub97c \uc140\ub8f0\ub7ec\ud3f0\uc73c\ub85c\ubd80\ud130 \uc2e0\ud638\ub97c \uc218\uc2e0\ud558\ub294\ub370 \uc0ac\uc6a9\ud558\uace0, 869~894 MHz \ubc94\uc704\ub294 \uc2e0\ud638\ub97c \uc140\ub8f0\ub7ec\ud3f0\uc73c\ub85c \uc1a1\uc2e0\ud558\ub294\ub370 \uc0ac\uc6a9\ud560 \uc218 \uc788\ub2e4. <\/p>\n<p>\uc774 \ub300\uc5ed\ub4e4\uc740 \ucc44\ub110\uc774\ub77c\uace0 \ubd88\ub9ac\ub294 30 kHz\uc758 \ubd80\ub300\uc5ed\uc73c\ub85c \ub098\ub258\uc5b4\uc9c4\ub2e4. <\/p>\n<p>\uc2a4\ud399\ud2b8\ub7fc\uc740 FDMA \uae30\uc220\uc744 \ud1b5\ud574 \ubd80\ucc44\ub110\ub85c \ubd84\ud560\ub41c\ub2e4. <\/p>\n<p>\uc1a1\uc2e0\uae30\ub85c\ubd80\ud130 \uc218\uc2e0\ub41c \uc2e0\ud638\ub294 \uc140\uc774\ub77c\uace0 \ubd88\ub9ac\ub294 \ud55c \uac1c\uc758 \uc9c0\uc5ed\uc744 \ucee4\ubc84\ud55c\ub2e4. <\/p>\n<p>\uc0ac\uc6a9\uc790\uac00 \ud55c \uc140 \uad6c\uc5ed\uc5d0\uc11c \uc778\uc811 \uc140\ub85c \uc6c0\uc9c1\uc774\uba74, \uadf8 \uc0ac\uc6a9\uc790\ub294 \uc11c\ube44\uc2a4\uac00 \uc911\ub2e8\ub418\ub294 \ub290\ub08c\uc774 \uc5c6\uc774 \uc0c8\ub85c\uc6b4 \uc140\uc758 \uc2e0\ud638\ub97c \uc218\uc2e0\ud560 \uc218 \uc788\ub2e4. <\/p>\n<p>\uc778\uc811 \uc140 \ub0b4\uc5d0 \uc788\ub294 \uc2e0\ud638\ub294 \uc2e0\ud638\ub4e4\uc774 \uc11c\ub85c\ub97c \uac04\uc12d\ud558\uc9c0 \uc54a\ub3c4\ub85d \uc774\uc804 \uc140\uc758 \uc2e0\ud638\uc640\ub294 \ub2e4\ub978 \ucc44\ub110\ub85c \uc1a1\uc218\uc2e0\ub41c\ub2e4. <\/p>\n<p>AMPS\uc758 \uc544\ub0a0\ub85c\uadf8 \uc11c\ube44\uc2a4\ub294 FDMA\uc5d0 \uac01 \ucc44\ub110\uc744 \ub354 \uc791\uac8c \ubd84\ud560\ud558\ub294 TDMA \uae30\uc220\uc774 \ucd94\uac00\ub428\uc73c\ub85c\uc368 \ub514\uc9c0\ud138 \uc140\ub8f0\ub7ec \uc11c\ube44\uc2a4\ub85c \uc0c8\ub85c\uc6cc\uc84c\ub2e4. <\/p>\n<p>\uc774 \uc11c\ube44\uc2a4\ub294 \ub514\uc9c0\ud138 AMPS, \uc989 D-AMPS\ub77c\uace0 \ubd80\ub978\ub2e4. <\/p>\n<p>AMPS\uc640 D-AMPS\uac00 \ubd81\ubbf8\uc9c0\uc5ed\uc758 \uc140\ub8f0\ub7ec\ud3f0 \uc2dc\uc7a5\uc744 \uc704\ud574 \ud0c4\uc0dd\ub418\uc5c8\uc9c0\ub9cc, \uc140\ub8f0\ub7ec\ud3f0 \uc8fc\uc694 \uc81c\uc791\ud68c\uc0ac \uc911 \ud558\ub098\uc778 \uc5d0\ub9ad\uc2a8\uc5d0 \uc758\ud558\uba74, \uc774 \uae30\uc220\uc740 \uc774\uc81c \uc804 \uc138\uacc4 7400\ub9cc \uba85 \uc774\uc0c1\uc758 \uac00\uc785\uc790\ub97c \uc704\ud574 \uc0ac\uc6a9\ub418\uace0 \uc788\ub2e4\uace0 \ud55c\ub2e4.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>AMPS (advanced mobile phone service) &#8211; \uc570\ud504\uc2a4 \uc774\ub3d9 \uc804\ud654 \ubc29\uc2dd AMPS[\uc570\ud504\uc2a4]\ub294 \ubbf8\uad6d \ub0b4\uc5d0\uc11c \uc544\ub0a0\ub85c\uadf8 \uc2e0\ud638 \uc140\ub8f0\ub7ec\ud3f0 \uc11c\ube44\uc2a4\ub97c \uc704\ud55c \ud45c\uc900 \uc2dc\uc2a4\ud15c\uc774\uc9c0\ub9cc, \ub2e4\ub978 \ub098\ub77c\ub4e4\uc5d0\uc11c\ub3c4 \uc0ac\uc6a9\ub41c\ub2e4. \uc774\uac83\uc740 1970\ub144\uc5d0 \ubbf8\uad6d \uc5f0\ubc29\ud1b5\uc2e0\uc704\uc6d0\ud68c\uc5d0 \uc758\ud55c \uc140\ub8f0\ub7ec \uc11c\ube44\uc2a4\ub97c \uc704\ud55c \ucd5c\ucd08\uc758 \uc804\uc790\uae30 \ubcf5\uc0ac \uc2a4\ud399\ud2b8\ub7fc\uc5d0 \uae30\ubc18\uc744 \ub450\uace0 \uc788\ub2e4. 1983\ub144\uc5d0 AT&#038;T\uc5d0 \uc758\ud574 \uc18c\uac1c\ub41c AMPS\ub294 \ubbf8\uad6d \ub0b4\uc5d0\uc11c \uc544\uc9c1\ub3c4 \uac00\uc7a5 \uad11\ubc94\uc704\ud558\uac8c \ucc44\uc6a9\ub41c \uc140\ub8f0\ub7ec \uc2dc\uc2a4\ud15c\uc774\ub2e4. AMPS\ub294 800~900 MHz \uc8fc\ud30c\uc218 &hellip; <\/p>\n<p class=\"link-more\"><a href=\"http:\/\/w3devlabs.net\/wp\/?p=10983\" class=\"more-link\">\ub354 \ubcf4\uae30<span class=\"screen-reader-text\"> &#8220;[\uc815\ubcf4\ud1b5\uc2e0\uc6a9\uc5b4] \uc570\ud504\uc2a4 \uc774\ub3d9 \uc804\ud654 \ubc29\uc2dd&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"footnotes":""},"categories":[5922],"tags":[5921],"class_list":["post-10983","post","type-post","status-publish","format-standard","hentry","category-5922","tag-5921","entry"],"_links":{"self":[{"href":"http:\/\/w3devlabs.net\/wp\/index.php?rest_route=\/wp\/v2\/posts\/10983","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/w3devlabs.net\/wp\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/w3devlabs.net\/wp\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/w3devlabs.net\/wp\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/w3devlabs.net\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=10983"}],"version-history":[{"count":0,"href":"http:\/\/w3devlabs.net\/wp\/index.php?rest_route=\/wp\/v2\/posts\/10983\/revisions"}],"wp:attachment":[{"href":"http:\/\/w3devlabs.net\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=10983"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/w3devlabs.net\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=10983"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/w3devlabs.net\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=10983"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}