{"id":11981,"date":"2026-03-02T12:56:00","date_gmt":"2026-03-02T09:56:00","guid":{"rendered":"https:\/\/global.tab-tv.com\/ro\/?p=11981"},"modified":"2026-03-02T20:48:51","modified_gmt":"2026-03-02T17:48:51","slug":"intelegerea-configuratiilor-wi-fi-2x2-3x3-si-4x4","status":"publish","type":"post","link":"https:\/\/global.tab-tv.com\/ro\/intelegerea-configuratiilor-wi-fi-2x2-3x3-si-4x4\/","title":{"rendered":"Originea denumirilor 2\u00d72, 3\u00d73 \u0219i 4\u00d74 la routerele Wi-Fi"},"content":{"rendered":"\n<p>Termenii 2\u00d72 \u0219i 4\u00d74 au \u00eenceput s\u0103 fie utiliza\u021bi pe scar\u0103 larg\u0103 dup\u0103 anul 2009, odat\u0103 cu introducerea standardului Wi-Fi 4 \u0219i implementarea tehnologiei MIMO. MIMO \u00eenseamn\u0103 <em>Multiple Input Multiple Output<\/em> (\u201eintr\u0103ri multiple, ie\u0219iri multiple\u201d) \u0219i cre\u0219te l\u0103\u021bimea de band\u0103 prin utilizarea mai multor antene. Prin separarea antenelor \u00een spa\u021biu sau prin modificarea polariz\u0103rii semnalului pot fi transmise mai multe date simultan, ceea ce \u00eembun\u0103t\u0103\u021be\u0219te semnificativ viteza general\u0103. O alt\u0103 abordare este utilizarea mai multor emi\u021b\u0103toare \u0219i receptoare. Totu\u0219i, pentru ca aceste tehnologii s\u0103 func\u021bioneze eficient, ele trebuie s\u0103 fie acceptate at\u00e2t de router, c\u00e2t \u0219i de dispozitivul conectat, cum ar fi un televizor sau un smartphone.<\/p>\n\n\n\n<p>De exemplu, Wi-Fi 4 poate atinge viteze de p\u00e2n\u0103 la 600 Mb\/s atunci c\u00e2nd sunt utilizate patru antene, \u00een timp ce Wi-Fi 5 poate ajunge p\u00e2n\u0103 la 6,77 Gb\/s cu suport 8\u00d78 MU-MIMO. \u00cen general, cu c\u00e2t num\u0103rul de antene \u0219i de fluxuri spa\u021biale este mai mare, cu at\u00e2t este mai ridicat\u0103 viteza poten\u021bial\u0103 de transmisie \u0219i performan\u021ba general\u0103 a re\u021belei.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Interpretarea denumirilor 2\u00d72, 3\u00d73 \u0219i 4\u00d74<\/strong><\/h2>\n\n\n\n<p>Astfel au ap\u0103rut denumirile 2\u00d72, 3\u00d73 \u0219i 4\u00d74. Pentru o perioad\u0103 de timp, acestea au fost interpretate \u00een moduri diferite, dar cel mai adesea erau explicate prin num\u0103rul de antene ale dispozitivului, deoarece acest lucru era mai u\u0219or de \u00een\u021beles.<\/p>\n\n\n\n<p>Wi-Fi 2\u00d72 era \u00een mod obi\u0219nuit \u00een\u021beles ca un router care suporta patru antene. Wi-Fi 3\u00d73, o denumire relativ rar\u0103, era de obicei descris ca un router cu \u0219ase antene, de regul\u0103 dou\u0103 pentru banda de 2,4 GHz \u0219i patru pentru banda de 5 GHz. Wi-Fi 4\u00d74 f\u0103cea adesea referire la routere cu opt antene, \u00een special la modelele bazate pe standardul Wi-Fi 5.<\/p>\n\n\n\n<p>\u00cen cadrul explica\u021biilor de marketing, 1\u00d71 era descris ca dou\u0103 antene: una pentru transmisie \u0219i una pentru recep\u021bie. Totu\u0219i, exist\u0103 \u0219i o interpretare mai tehnic\u0103 a acestor configura\u021bii.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Interpretare tehnic\u0103 alternativ\u0103 \u0219i standarde moderne<\/strong><\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"721\" src=\"https:\/\/global.tab-tv.com\/ro\/wp-content\/uploads\/sites\/2\/2026\/03\/2\u00d72-3\u00d73-and-4\u00d74-in-Wi-Fi-Routers.webp\" alt=\"\" class=\"wp-image-12891\" srcset=\"https:\/\/global.tab-tv.com\/ro\/wp-content\/uploads\/sites\/2\/2026\/03\/2\u00d72-3\u00d73-and-4\u00d74-in-Wi-Fi-Routers.webp 1024w, https:\/\/global.tab-tv.com\/ro\/wp-content\/uploads\/sites\/2\/2026\/03\/2\u00d72-3\u00d73-and-4\u00d74-in-Wi-Fi-Routers-300x211.webp 300w, https:\/\/global.tab-tv.com\/ro\/wp-content\/uploads\/sites\/2\/2026\/03\/2\u00d72-3\u00d73-and-4\u00d74-in-Wi-Fi-Routers-768x541.webp 768w, https:\/\/global.tab-tv.com\/ro\/wp-content\/uploads\/sites\/2\/2026\/03\/2\u00d72-3\u00d73-and-4\u00d74-in-Wi-Fi-Routers-100x70.webp 100w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>O modalitate mai precis\u0103 de a interpreta configura\u021bii precum 1\u00d71, 2\u00d72 \u0219i 4\u00d74 este s\u0103 ne concentr\u0103m asupra fluxurilor de date, nu asupra num\u0103rului fizic de antene. \u00cen aceast\u0103 interpretare, primul num\u0103r reprezint\u0103 num\u0103rul de fluxuri de transmisie, iar al doilea num\u0103r reprezint\u0103 num\u0103rul de fluxuri de recep\u021bie.<\/p>\n\n\n\n<p>O configura\u021bie 1\u00d71 include o cale de transmisie \u0219i una de recep\u021bie \u0219i reprezint\u0103 configura\u021bia de baz\u0103 f\u0103r\u0103 tehnologia MIMO. O configura\u021bie 2\u00d72 utilizeaz\u0103 dou\u0103 c\u0103i de transmisie \u0219i dou\u0103 de recep\u021bie, ceea ce, \u00een condi\u021bii ideale, poate dubla efectiv viteza poten\u021bial\u0103 de transmisie \u00een compara\u021bie cu 1\u00d71. O configura\u021bie 4\u00d74 include patru c\u0103i de transmisie \u0219i patru de recep\u021bie, cresc\u00e2nd \u0219i mai mult l\u0103\u021bimea de band\u0103 fa\u021b\u0103 de configura\u021bia de baz\u0103.<\/p>\n\n\n\n<p>Odat\u0103 cu apari\u021bia standardelor mai noi, precum Wi-Fi 6 \u0219i Wi-Fi 7, aceste denumiri \u0219i-au pierdut \u00een mare parte relevan\u021ba. Standardele moderne includ tehnologii avansate de combinare \u0219i gestionare a fluxurilor de date, care nu sunt strict legate de num\u0103rul vizibil de antene sau de caracteristicile individuale ale routerului. \u00cen multe cazuri, aceste etichete au fost utilizate mai degrab\u0103 \u00een scopuri de marketing dec\u00e2t ca parametri tehnici preci\u0219i.<\/p>\n\n\n\n<p>Ast\u0103zi, routerele pot avea dou\u0103, patru sau \u0219ase antene \u0219i pot func\u021biona \u00eentr-o singur\u0103 band\u0103 (2,4 GHz), \u00een dou\u0103 benzi (2,4 GHz \u0219i 5 GHz) sau \u00een trei benzi (2,4 GHz, 5 GHz \u0219i 6 GHz). De aceea, este mai bine s\u0103 ne concentr\u0103m asupra specifica\u021biilor tehnice detaliate dec\u00e2t asupra termenilor de marketing atr\u0103g\u0103tori.<\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Termenii 2\u00d72 \u0219i 4\u00d74 au \u00eenceput s\u0103 fie utiliza\u021bi pe scar\u0103 larg\u0103 dup\u0103 anul 2009, odat\u0103 cu introducerea standardului Wi-Fi 4 \u0219i implementarea tehnologiei MIMO. MIMO \u00eenseamn\u0103 Multiple Input Multiple Output (\u201eintr\u0103ri multiple, ie\u0219iri multiple\u201d) \u0219i cre\u0219te l\u0103\u021bimea de band\u0103 prin utilizarea mai multor antene. Prin separarea antenelor \u00een spa\u021biu sau prin modificarea polariz\u0103rii semnalului [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":12408,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[101],"tags":[44],"class_list":{"0":"post-11981","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-tehnologie","8":"tag-wifi"},"_links":{"self":[{"href":"https:\/\/global.tab-tv.com\/ro\/wp-json\/wp\/v2\/posts\/11981","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/global.tab-tv.com\/ro\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/global.tab-tv.com\/ro\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/global.tab-tv.com\/ro\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/global.tab-tv.com\/ro\/wp-json\/wp\/v2\/comments?post=11981"}],"version-history":[{"count":3,"href":"https:\/\/global.tab-tv.com\/ro\/wp-json\/wp\/v2\/posts\/11981\/revisions"}],"predecessor-version":[{"id":12892,"href":"https:\/\/global.tab-tv.com\/ro\/wp-json\/wp\/v2\/posts\/11981\/revisions\/12892"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/global.tab-tv.com\/ro\/wp-json\/wp\/v2\/media\/12408"}],"wp:attachment":[{"href":"https:\/\/global.tab-tv.com\/ro\/wp-json\/wp\/v2\/media?parent=11981"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/global.tab-tv.com\/ro\/wp-json\/wp\/v2\/categories?post=11981"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/global.tab-tv.com\/ro\/wp-json\/wp\/v2\/tags?post=11981"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}