{"id":1782,"date":"2026-09-14T20:18:49","date_gmt":"2026-09-14T18:18:49","guid":{"rendered":"https:\/\/pcsluzba.sk\/blog\/?p=1782"},"modified":"2026-09-16T13:15:04","modified_gmt":"2026-09-16T11:15:04","slug":"24-ghz-vs-5-ghz-vs-6-ghz-wifi","status":"publish","type":"post","link":"https:\/\/pcsluzba.sk\/blog\/24-ghz-vs-5-ghz-vs-6-ghz-wifi\/","title":{"rendered":"2,4 GHz vs. 5 GHz vs. 6 GHz Wi-Fi \u2013 ak\u00fd je rozdiel?"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Pri ozna\u010deniach <strong>2,4 GHz<\/strong>, <strong>5 GHz<\/strong>, <strong>6 GHz<\/strong>, <strong>Wi-Fi 5<\/strong>, <strong>Wi-Fi 6<\/strong>, <strong>Wi-Fi 6E<\/strong> a <strong>Wi-Fi 7<\/strong> sa d\u00e1 \u013eahko strati\u0165. Navy\u0161e sa do toho \u010dasto mie\u0161aj\u00fa pojmy <strong>4G<\/strong> a <strong>5G<\/strong> z mobiln\u00fdch siet\u00ed. V skuto\u010dnosti ide o dve \u00faplne odli\u0161n\u00e9 veci.<\/p>\n\n\n\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_88 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Obsah<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/pcsluzba.sk\/blog\/24-ghz-vs-5-ghz-vs-6-ghz-wifi\/#Najprv_to_najdolezitejsie_frekvencia_nie_je_generacia_Wi-Fi\" >Najprv to najd\u00f4le\u017eitej\u0161ie: frekvencia nie je gener\u00e1cia Wi-Fi<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/pcsluzba.sk\/blog\/24-ghz-vs-5-ghz-vs-6-ghz-wifi\/#A_co_4G_a_5G_To_je_uplne_ina_technologia\" >A \u010do 4G a 5G? To je \u00faplne in\u00e1 technol\u00f3gia<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/pcsluzba.sk\/blog\/24-ghz-vs-5-ghz-vs-6-ghz-wifi\/#24_GHz_Wi-Fi_%E2%80%93_najlepsi_dosah_nizsia_rychlost\" >2,4 GHz Wi-Fi \u2013 najlep\u0161\u00ed dosah, ni\u017e\u0161ia r\u00fdchlos\u0165<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/pcsluzba.sk\/blog\/24-ghz-vs-5-ghz-vs-6-ghz-wifi\/#5_GHz_Wi-Fi_%E2%80%93_dobry_kompromis_medzi_rychlostou_a_dosahom\" >5 GHz Wi-Fi \u2013 dobr\u00fd kompromis medzi r\u00fdchlos\u0165ou a dosahom<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/pcsluzba.sk\/blog\/24-ghz-vs-5-ghz-vs-6-ghz-wifi\/#6_GHz_Wi-Fi_%E2%80%93_vysoka_kapacita_ale_kratsi_dosah\" >6 GHz Wi-Fi \u2013 vysok\u00e1 kapacita, ale krat\u0161\u00ed dosah<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/pcsluzba.sk\/blog\/24-ghz-vs-5-ghz-vs-6-ghz-wifi\/#Wi-Fi_5_Wi-Fi_6_Wi-Fi_6E_a_Wi-Fi_7_%E2%80%93_co_znamenaju\" >Wi-Fi 5, Wi-Fi 6, Wi-Fi 6E a Wi-Fi 7 \u2013 \u010do znamenaj\u00fa?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/pcsluzba.sk\/blog\/24-ghz-vs-5-ghz-vs-6-ghz-wifi\/#Technicke_porovnanie_Wi-Fi_5_Wi-Fi_6_Wi-Fi_6E_a_Wi-Fi_7\" >Technick\u00e9 porovnanie Wi-Fi 5, Wi-Fi 6, Wi-Fi 6E a Wi-Fi 7<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/pcsluzba.sk\/blog\/24-ghz-vs-5-ghz-vs-6-ghz-wifi\/#Co_priniesli_OFDMA_MU-MIMO_a_MLO\" >\u010co priniesli OFDMA, MU-MIMO a MLO?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/pcsluzba.sk\/blog\/24-ghz-vs-5-ghz-vs-6-ghz-wifi\/#Sirka_kanala_20_40_80_160_a_320_MHz\" >\u0160\u00edrka kan\u00e1la: 20, 40, 80, 160 a 320 MHz<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/pcsluzba.sk\/blog\/24-ghz-vs-5-ghz-vs-6-ghz-wifi\/#Kanaly_a_DFS_v_pasme_5_GHz\" >Kan\u00e1ly a DFS v p\u00e1sme 5 GHz<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/pcsluzba.sk\/blog\/24-ghz-vs-5-ghz-vs-6-ghz-wifi\/#Preco_je_realna_Wi-Fi_rychlost_nizsia_nez_cislo_na_krabici\" >Pre\u010do je re\u00e1lna Wi-Fi r\u00fdchlos\u0165 ni\u017e\u0161ia ne\u017e \u010d\u00edslo na krabici?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/pcsluzba.sk\/blog\/24-ghz-vs-5-ghz-vs-6-ghz-wifi\/#Preco_niekedy_zariadenie_Wi-Fi_siet_vobec_nevidi\" >Pre\u010do niekedy zariadenie Wi-Fi sie\u0165 v\u00f4bec nevid\u00ed?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/pcsluzba.sk\/blog\/24-ghz-vs-5-ghz-vs-6-ghz-wifi\/#Ktore_pasmo_je_najlepsie\" >Ktor\u00e9 p\u00e1smo je najlep\u0161ie?<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Najprv_to_najdolezitejsie_frekvencia_nie_je_generacia_Wi-Fi\"><\/span>Najprv to najd\u00f4le\u017eitej\u0161ie: frekvencia nie je gener\u00e1cia Wi-Fi<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u010c\u00edsla <strong>2,4 GHz, 5 GHz a 6 GHz<\/strong> ozna\u010duj\u00fa <strong>frekven\u010dn\u00e9 p\u00e1sma<\/strong>, v ktor\u00fdch bezdr\u00f4tov\u00e1 sie\u0165 pracuje. Naopak ozna\u010denia <a href=\"https:\/\/pcsluzba.sk\/blog\/slovnik-pojmov\/#wifi5\">Wi-Fi 5<\/a>, <a href=\"https:\/\/pcsluzba.sk\/blog\/slovnik-pojmov\/#wifi6\">Wi-Fi 6<\/a>, <a href=\"https:\/\/pcsluzba.sk\/blog\/slovnik-pojmov\/#wifi6e\">Wi-Fi 6E<\/a> a <a href=\"https:\/\/pcsluzba.sk\/blog\/slovnik-pojmov\/#wifi7\">Wi-Fi 7<\/a> ozna\u010duj\u00fa <strong>gener\u00e1cie a \u0161tandardy Wi-Fi<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Preto napr\u00edklad Wi-Fi 6 nemus\u00ed automaticky znamena\u0165 6 GHz. Be\u017en\u00e9 Wi-Fi 6 funguje najm\u00e4 v p\u00e1smach 2,4 GHz a 5 GHz. Podpora 6 GHz pri\u0161la a\u017e s Wi-Fi 6E a pokra\u010duje vo Wi-Fi 7.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"A_co_4G_a_5G_To_je_uplne_ina_technologia\"><\/span>A \u010do 4G a 5G? To je \u00faplne in\u00e1 technol\u00f3gia<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>4G a 5G nes\u00favisia s ozna\u010deniami Wi-Fi 4, Wi-Fi 5, Wi-Fi 6 alebo Wi-Fi 7.<\/strong> 4G a 5G s\u00fa gener\u00e1cie <strong>mobiln\u00fdch siet\u00ed oper\u00e1torov<\/strong>, cez ktor\u00e9 sa telef\u00f3n alebo modem prip\u00e1ja k internetu cez vysiela\u010de mobilnej siete. Wi-Fi je naopak lok\u00e1lna bezdr\u00f4tov\u00e1 sie\u0165 vytv\u00e1ran\u00e1 routerom alebo access pointom doma, vo firme \u010di na verejnom mieste.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Podobn\u00e9 \u010d\u00edsla teda m\u00f4\u017eu p\u00f4sobi\u0165 m\u00e4t\u00faco, ale technologicky spolu priamo nes\u00favisia. Telef\u00f3n m\u00f4\u017ee by\u0165 napr\u00edklad pripojen\u00fd k internetu cez 5G mobiln\u00fa sie\u0165 a z\u00e1rove\u0148 zdie\u013ea\u0165 internet cez Wi-Fi 6 hotspot.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"24_GHz_Wi-Fi_%E2%80%93_najlepsi_dosah_nizsia_rychlost\"><\/span>2,4 GHz Wi-Fi \u2013 najlep\u0161\u00ed dosah, ni\u017e\u0161ia r\u00fdchlos\u0165<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">P\u00e1smo 2,4 GHz m\u00e1 najlep\u0161\u00ed dosah a lep\u0161ie prech\u00e1dza cez steny a \u010fal\u0161ie prek\u00e1\u017eky. Je preto vhodn\u00e9 tam, kde je zariadenie \u010falej od routera alebo kde potrebujete pokry\u0165 v\u00e4\u010d\u0161\u00ed priestor.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>najlep\u0161\u00ed dosah zo v\u0161etk\u00fdch troch p\u00e1siem,<\/li>\n\n\n\n<li>lep\u0161ie prenik\u00e1 cez steny,<\/li>\n\n\n\n<li>podporuj\u00fa ho aj star\u0161ie zariadenia,<\/li>\n\n\n\n<li>m\u00e1 v\u0161ak ni\u017e\u0161iu maxim\u00e1lnu r\u00fdchlos\u0165,<\/li>\n\n\n\n<li>je viac n\u00e1chyln\u00e9 na ru\u0161enie od susedn\u00fdch Wi-Fi siet\u00ed a \u010fal\u0161\u00edch zariaden\u00ed.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"5_GHz_Wi-Fi_%E2%80%93_dobry_kompromis_medzi_rychlostou_a_dosahom\"><\/span>5 GHz Wi-Fi \u2013 dobr\u00fd kompromis medzi r\u00fdchlos\u0165ou a dosahom<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Naopak p\u00e1smo 5 GHz pon\u00faka vy\u0161\u0161iu r\u00fdchlos\u0165 a v\u00e4\u010d\u0161iu kapacitu ako 2,4 GHz. V be\u017enom byte alebo kancel\u00e1rii je \u010dasto najlep\u0161ou vo\u013ebou pre notebooky, telef\u00f3ny, telev\u00edzory a \u010fal\u0161ie zariadenia, ktor\u00e9 potrebuj\u00fa vy\u0161\u0161iu r\u00fdchlos\u0165.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>vy\u0161\u0161ie r\u00fdchlosti ako 2,4 GHz,<\/li>\n\n\n\n<li>menej ru\u0161enia,<\/li>\n\n\n\n<li>viac dostupn\u00fdch kan\u00e1lov,<\/li>\n\n\n\n<li>krat\u0161\u00ed dosah,<\/li>\n\n\n\n<li>hor\u0161\u00ed priechod cez steny.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"6_GHz_Wi-Fi_%E2%80%93_vysoka_kapacita_ale_kratsi_dosah\"><\/span>6 GHz Wi-Fi \u2013 vysok\u00e1 kapacita, ale krat\u0161\u00ed dosah<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Z\u00e1rove\u0148 je p\u00e1smo 6 GHz najnov\u0161ie z trojice a pou\u017e\u00edva ho najm\u00e4 Wi-Fi 6E a Wi-Fi 7. Pon\u00faka ve\u013ea priestoru pre \u0161irok\u00e9 kan\u00e1ly a vysok\u00e9 prenosov\u00e9 r\u00fdchlosti, ale jeho sign\u00e1l sa cez prek\u00e1\u017eky \u0161\u00edri hor\u0161ie ne\u017e pri 2,4 GHz a 5 GHz.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>ve\u013emi vysok\u00e1 kapacita a r\u00fdchlos\u0165,<\/li>\n\n\n\n<li>n\u00edzke ru\u0161enie,<\/li>\n\n\n\n<li>ve\u013ea vo\u013en\u00fdch kan\u00e1lov,<\/li>\n\n\n\n<li>vy\u017eaduje kompatibiln\u00e9 zariadenia,<\/li>\n\n\n\n<li>m\u00e1 krat\u0161\u00ed dosah a slab\u0161ie prenik\u00e1 cez steny.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Wi-Fi_5_Wi-Fi_6_Wi-Fi_6E_a_Wi-Fi_7_%E2%80%93_co_znamenaju\"><\/span>Wi-Fi 5, Wi-Fi 6, Wi-Fi 6E a Wi-Fi 7 \u2013 \u010do znamenaj\u00fa?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Wi-Fi 5<\/strong> je ozna\u010denie \u0161tandardu 802.11ac a pou\u017e\u00edva predov\u0161etk\u00fdm p\u00e1smo 5 GHz. Nov\u0161ia <strong>Wi-Fi 6<\/strong> ozna\u010duje \u0161tandard 802.11ax a prin\u00e1\u0161a lep\u0161iu efektivitu, vy\u0161\u0161\u00ed v\u00fdkon pri v\u00e4\u010d\u0161om po\u010dte zariaden\u00ed a ni\u017e\u0161iu odozvu. Navy\u0161e <strong>Wi-Fi 6E<\/strong> predstavuje roz\u0161\u00edrenie Wi-Fi 6 o p\u00e1smo 6 GHz. Napokon <strong>Wi-Fi 7<\/strong> predstavuje najnov\u0161iu gener\u00e1ciu, ktor\u00e1 podporuje 2,4 GHz, 5 GHz aj 6 GHz a prin\u00e1\u0161a \u010fal\u0161ie zv\u00fd\u0161enie r\u00fdchlosti a kapacity.<\/p>\n\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Technicke_porovnanie_Wi-Fi_5_Wi-Fi_6_Wi-Fi_6E_a_Wi-Fi_7\"><\/span>Technick\u00e9 porovnanie Wi-Fi 5, Wi-Fi 6, Wi-Fi 6E a Wi-Fi 7<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n<p class=\"wp-block-paragraph\">Rozdiel medzi gener\u00e1ciami Wi-Fi nie je iba v maxim\u00e1lnej r\u00fdchlosti. Men\u00ed sa aj \u0161\u00edrka kan\u00e1lov, modul\u00e1cia, sp\u00f4sob obsluhy viacer\u00fdch zariaden\u00ed a efektivita vyu\u017eitia r\u00e1diov\u00e9ho spektra. Nasleduj\u00face hodnoty s\u00fa teoretick\u00e9 maxim\u00e1 \u0161tandardov \u2013 re\u00e1lne zariadenia dosahuj\u00fa ni\u017e\u0161ie r\u00fdchlosti.<\/p>\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Gener\u00e1cia<\/th><th>IEEE \u0161tandard<\/th><th>P\u00e1sma<\/th><th>Max. \u0161\u00edrka kan\u00e1la<\/th><th>Modul\u00e1cia<\/th><th>Teoretick\u00e9 maximum<\/th><\/tr><\/thead><tbody><tr><td>Wi-Fi 5<\/td><td>802.11ac<\/td><td>5 GHz<\/td><td>160 MHz<\/td><td>256-QAM<\/td><td>pribli\u017ene 6,9 Gb\/s<\/td><\/tr><tr><td>Wi-Fi 6<\/td><td>802.11ax<\/td><td>2,4 a 5 GHz<\/td><td>160 MHz<\/td><td>1024-QAM<\/td><td>pribli\u017ene 9,6 Gb\/s<\/td><\/tr><tr><td>Wi-Fi 6E<\/td><td>802.11ax<\/td><td>2,4 \/ 5 \/ 6 GHz<\/td><td>160 MHz<\/td><td>1024-QAM<\/td><td>pribli\u017ene 9,6 Gb\/s<\/td><\/tr><tr><td>Wi-Fi 7<\/td><td>802.11be<\/td><td>2,4 \/ 5 \/ 6 GHz<\/td><td>320 MHz<\/td><td>4096-QAM<\/td><td>pribli\u017ene 46 Gb\/s<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n<p class=\"wp-block-paragraph\">Maxim\u00e1lne \u010d\u00edsla v tabu\u013eke neznamenaj\u00fa, \u017ee notebook alebo telef\u00f3n tak\u00fato r\u00fdchlos\u0165 skuto\u010dne dosiahne. Ide o s\u00fa\u010det mo\u017enost\u00ed \u0161tandardu pri ide\u00e1lnych podmienkach, ve\u013ekom po\u010dte priestorov\u00fdch streamov a maxim\u00e1lnej \u0161\u00edrke kan\u00e1la. Be\u017en\u00fd notebook alebo telef\u00f3n m\u00e1 \u010dasto iba 2\u00d72 Wi-Fi adapt\u00e9r, preto je jeho re\u00e1lna r\u00fdchlos\u0165 v\u00fdrazne ni\u017e\u0161ia.<\/p>\n\n\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;6aafcf36b9ebb&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"6aafcf36b9ebb\" class=\"wp-block-image size-large wp-lightbox-container\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"1024\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on--pointerdown=\"actions.preloadImage\" data-wp-on--pointerenter=\"actions.preloadImageWithDelay\" data-wp-on--pointerleave=\"actions.cancelPreload\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" src=\"https:\/\/pcsluzba.sk\/blog\/wp-content\/uploads\/2026\/09\/wifi-5-6-6e-7-porovnanie-1024x1024.webp\" alt=\"Porovnanie Wi-Fi 5, Wi-Fi 6, Wi-Fi 6E a Wi-Fi 7\" class=\"wp-image-1791\" srcset=\"https:\/\/pcsluzba.sk\/blog\/wp-content\/uploads\/2026\/09\/wifi-5-6-6e-7-porovnanie-1024x1024.webp 1024w, https:\/\/pcsluzba.sk\/blog\/wp-content\/uploads\/2026\/09\/wifi-5-6-6e-7-porovnanie-300x300.webp 300w, https:\/\/pcsluzba.sk\/blog\/wp-content\/uploads\/2026\/09\/wifi-5-6-6e-7-porovnanie-150x150.webp 150w, https:\/\/pcsluzba.sk\/blog\/wp-content\/uploads\/2026\/09\/wifi-5-6-6e-7-porovnanie-768x768.webp 768w, https:\/\/pcsluzba.sk\/blog\/wp-content\/uploads\/2026\/09\/wifi-5-6-6e-7-porovnanie.webp 1254w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\tdata-wp-bind--aria-label=\"state.thisImage.triggerButtonAriaLabel\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.thisImage.buttonRight\"\n\t\t\tdata-wp-style--top=\"state.thisImage.buttonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><figcaption class=\"wp-element-caption\">Wi-Fi 5, Wi-Fi 6, Wi-Fi 6E a Wi-Fi 7 \u2013 hlavn\u00e9 rozdiely<\/figcaption><\/figure>\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Co_priniesli_OFDMA_MU-MIMO_a_MLO\"><\/span>\u010co priniesli OFDMA, MU-MIMO a MLO?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n<p class=\"wp-block-paragraph\"><strong><a href=\"https:\/\/pcsluzba.sk\/blog\/slovnik-pojmov\/#ofdma\">OFDMA<\/a><\/strong>, pou\u017e\u00edvan\u00e9 vo Wi-Fi 6 a nov\u0161\u00edch gener\u00e1ci\u00e1ch, umo\u017e\u0148uje rozdeli\u0165 jeden r\u00e1diov\u00fd kan\u00e1l na men\u0161ie \u010dasti a efekt\u00edvnej\u0161ie obsluhova\u0165 viac zariaden\u00ed naraz. To je d\u00f4le\u017eit\u00e9 najm\u00e4 v dom\u00e1cnostiach a firm\u00e1ch, kde je k jednej sieti pripojen\u00fdch ve\u013ea telef\u00f3nov, notebookov, telev\u00edzorov a IoT zariaden\u00ed.<\/p>\n\n\n<p class=\"wp-block-paragraph\"><strong><a href=\"https:\/\/pcsluzba.sk\/blog\/slovnik-pojmov\/#mu-mimo\">MU-MIMO<\/a><\/strong> umo\u017e\u0148uje routeru komunikova\u0165 s viacer\u00fdmi zariadeniami s\u00fa\u010dasne namiesto toho, aby ich obsluhoval striktne jedno po druhom. Wi-Fi 6 t\u00fato technol\u00f3giu zlep\u0161ilo aj pre odosielanie d\u00e1t zo zariaden\u00ed smerom k routeru.<\/p>\n\n\n<p class=\"wp-block-paragraph\"><strong><a href=\"https:\/\/pcsluzba.sk\/blog\/slovnik-pojmov\/#mlo\">MLO (Multi-Link Operation)<\/a><\/strong> je jedna z najd\u00f4le\u017eitej\u0161\u00edch noviniek Wi-Fi 7. Kompatibiln\u00e9 zariadenie m\u00f4\u017ee vyu\u017e\u00edva\u0165 viac frekven\u010dn\u00fdch p\u00e1siem alebo spojen\u00ed naraz, \u010do m\u00f4\u017ee zv\u00fd\u0161i\u0165 priepustnos\u0165 a z\u00e1rove\u0148 zn\u00ed\u017ei\u0165 odozvu \u010di riziko kr\u00e1tkych v\u00fdpadkov.<\/p>\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Sirka_kanala_20_40_80_160_a_320_MHz\"><\/span>\u0160\u00edrka kan\u00e1la: 20, 40, 80, 160 a 320 MHz<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n<p class=\"wp-block-paragraph\">\u010c\u00edm \u0161ir\u0161\u00ed kan\u00e1l Wi-Fi pou\u017e\u00edva, t\u00fdm vy\u0161\u0161iu r\u00fdchlos\u0165 m\u00f4\u017ee dosiahnu\u0165. \u0160ir\u0161\u00ed kan\u00e1l v\u0161ak potrebuje viac vo\u013en\u00e9ho r\u00e1diov\u00e9ho priestoru a je citlivej\u0161\u00ed na ru\u0161enie. V p\u00e1sme 2,4 GHz sa preto be\u017ene pou\u017e\u00edva 20 MHz, v p\u00e1sme 5 GHz s\u00fa \u010dast\u00e9 40 alebo 80 MHz kan\u00e1ly a pri vhodn\u00fdch podmienkach aj 160 MHz. Wi-Fi 7 v p\u00e1sme 6 GHz umo\u017e\u0148uje a\u017e 320 MHz kan\u00e1ly.<\/p>\n\n\n<p class=\"wp-block-paragraph\">Na druhej strane v husto zastavanom prostred\u00ed nemus\u00ed by\u0165 naj\u0161ir\u0161\u00ed kan\u00e1l najlep\u0161ou vo\u013ebou. Dva susedn\u00e9 routery, ktor\u00e9 sa prekr\u00fdvaj\u00fa na rovnakom alebo susednom kan\u00e1li, si navz\u00e1jom zni\u017euj\u00fa v\u00fdkon. Preto m\u00f4\u017ee spr\u00e1vne zvolen\u00fd u\u017e\u0161\u00ed kan\u00e1l v praxi fungova\u0165 stabilnej\u0161ie ne\u017e maxim\u00e1lna \u0161\u00edrka nastaven\u00e1 za ka\u017ed\u00fa cenu.<\/p>\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Kanaly_a_DFS_v_pasme_5_GHz\"><\/span>Kan\u00e1ly a DFS v p\u00e1sme 5 GHz<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n<p class=\"wp-block-paragraph\">V p\u00e1sme 2,4 GHz je v Eur\u00f3pe dostupn\u00fdch 13 kan\u00e1lov, ale ve\u013ek\u00e1 \u010das\u0165 z nich sa navz\u00e1jom prekr\u00fdva. Preto sa pri 20 MHz kan\u00e1loch \u010dasto pou\u017e\u00edvaj\u00fa kombin\u00e1cie ako 1, 6 a 11. P\u00e1smo 5 GHz pon\u00faka podstatne viac priestoru, niektor\u00e9 kan\u00e1ly v\u0161ak pou\u017e\u00edvaj\u00fa syst\u00e9m <strong>DFS<\/strong>.<\/p>\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/pcsluzba.sk\/blog\/slovnik-pojmov\/#dfs\">DFS (Dynamic Frequency Selection)<\/a> chr\u00e1ni radarov\u00e9 syst\u00e9my pou\u017e\u00edvaj\u00face rovnak\u00e9 frekvencie. Ak router na DFS kan\u00e1li zaznamen\u00e1 radarov\u00fd sign\u00e1l, mus\u00ed dan\u00fd kan\u00e1l opusti\u0165 a prepn\u00fa\u0165 sa na in\u00fd. Pou\u017e\u00edvate\u013e to m\u00f4\u017ee vn\u00edma\u0165 ako kr\u00e1tke preru\u0161enie alebo zmenu Wi-Fi kan\u00e1la.<\/p>\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Preco_je_realna_Wi-Fi_rychlost_nizsia_nez_cislo_na_krabici\"><\/span>Pre\u010do je re\u00e1lna Wi-Fi r\u00fdchlos\u0165 ni\u017e\u0161ia ne\u017e \u010d\u00edslo na krabici?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n<ul class=\"wp-block-list\"><li>router a klient nemusia podporova\u0165 rovnak\u00fa gener\u00e1ciu Wi-Fi,<\/li><li>telef\u00f3n alebo notebook m\u00f4\u017ee ma\u0165 iba 1\u00d71 alebo 2\u00d72 ant\u00e9nnu konfigur\u00e1ciu,<\/li><li>\u0161ir\u0161\u00ed 80, 160 alebo 320 MHz kan\u00e1l nemus\u00ed by\u0165 v danom prostred\u00ed pou\u017eite\u013en\u00fd,<\/li><li>sign\u00e1l zoslabuj\u00fa steny, stropy, n\u00e1bytok a vzdialenos\u0165,<\/li><li>\u010das\u0165 kapacity spotrebuje samotn\u00e1 r\u00e9\u017eia Wi-Fi protokolu,<\/li><li>r\u00fdchlos\u0165 m\u00f4\u017ee obmedzova\u0165 internetov\u00e1 pr\u00edpojka, LAN port routera alebo pripojenie access pointu.<\/li><\/ul>\n\n\n<p class=\"wp-block-paragraph\">Preto napr\u00edklad \u00fadaj AX3000, BE6500 alebo podobn\u00e9 marketingov\u00e9 ozna\u010denie routera neznamen\u00e1, \u017ee jedno zariadenie bude s\u0165ahova\u0165 d\u00e1ta touto r\u00fdchlos\u0165ou. Zvy\u010dajne ide o s\u00fa\u010det teoretick\u00fdch maxim\u00e1lnych r\u00fdchlost\u00ed viacer\u00fdch p\u00e1siem. Ak chcete porovna\u0165 re\u00e1lny v\u00fdkon pripojenia, pozrite si aj n\u00e1vod <a href=\"https:\/\/pcsluzba.sk\/blog\/ako-spravne-otestovat-rychlost-internetu\/\">Ako spr\u00e1vne otestova\u0165 r\u00fdchlos\u0165 internetu<\/a>.<\/p>\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Preco_niekedy_zariadenie_Wi-Fi_siet_vobec_nevidi\"><\/span>Pre\u010do niekedy zariadenie Wi-Fi sie\u0165 v\u00f4bec nevid\u00ed?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n\n<p class=\"wp-block-paragraph\">Navy\u0161e nie ka\u017ed\u00fd Wi-Fi adapt\u00e9r podporuje v\u0161etky p\u00e1sma. Star\u0161\u00ed notebook m\u00f4\u017ee podporova\u0165 iba 2,4 GHz. Ak router vysiela konkr\u00e9tnu sie\u0165 iba na 5 GHz alebo 6 GHz, tak\u00fd notebook ju nemus\u00ed v\u00f4bec zobrazi\u0165. P\u00e1smo 6 GHz navy\u0161e vy\u017eaduje kompatibiln\u00fd Wi-Fi 6E alebo Wi-Fi 7 adapt\u00e9r.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ak Windows 11 konkr\u00e9tnu sie\u0165 nevid\u00ed, pozrite si aj n\u00e1\u0161 \u010dl\u00e1nok <a href=\"https:\/\/pcsluzba.sk\/blog\/windows-11-nevidi-wifi-siet\/\">Windows 11 nevid\u00ed Wi-Fi sie\u0165 \u2013 pr\u00ed\u010diny a rie\u0161enia<\/a>.<\/p>\n\n\n\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;6aafcf36ba97c&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"6aafcf36ba97c\" class=\"wp-block-image size-large wp-lightbox-container\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"1024\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on--pointerdown=\"actions.preloadImage\" data-wp-on--pointerenter=\"actions.preloadImageWithDelay\" data-wp-on--pointerleave=\"actions.cancelPreload\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" src=\"https:\/\/pcsluzba.sk\/blog\/wp-content\/uploads\/2026\/09\/wifi-24-5-6-ghz-pasma-4g-5g-1024x1024.webp\" alt=\"Porovnanie p\u00e1siem 2,4 GHz, 5 GHz a 6 GHz a rozdiel medzi Wi-Fi a 4G\/5G\" class=\"wp-image-1790\" srcset=\"https:\/\/pcsluzba.sk\/blog\/wp-content\/uploads\/2026\/09\/wifi-24-5-6-ghz-pasma-4g-5g-1024x1024.webp 1024w, https:\/\/pcsluzba.sk\/blog\/wp-content\/uploads\/2026\/09\/wifi-24-5-6-ghz-pasma-4g-5g-300x300.webp 300w, https:\/\/pcsluzba.sk\/blog\/wp-content\/uploads\/2026\/09\/wifi-24-5-6-ghz-pasma-4g-5g-150x150.webp 150w, https:\/\/pcsluzba.sk\/blog\/wp-content\/uploads\/2026\/09\/wifi-24-5-6-ghz-pasma-4g-5g-768x768.webp 768w, https:\/\/pcsluzba.sk\/blog\/wp-content\/uploads\/2026\/09\/wifi-24-5-6-ghz-pasma-4g-5g.webp 1254w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\tdata-wp-bind--aria-label=\"state.thisImage.triggerButtonAriaLabel\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.thisImage.buttonRight\"\n\t\t\tdata-wp-style--top=\"state.thisImage.buttonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><figcaption class=\"wp-element-caption\">2,4 GHz, 5 GHz a 6 GHz \u2013 rozdiely p\u00e1siem a Wi-Fi vs. 4G\/5G<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Ktore_pasmo_je_najlepsie\"><\/span>Ktor\u00e9 p\u00e1smo je najlep\u0161ie?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Preto neexistuje jedno p\u00e1smo, ktor\u00e9 je v\u017edy najlep\u0161ie. V praxi plat\u00ed jednoduch\u00e9 pravidlo: <strong>2,4 GHz pre dosah, 5 GHz pre be\u017en\u00fa r\u00fdchlu prev\u00e1dzku a 6 GHz pre vysok\u00fd v\u00fdkon na krat\u0161iu vzdialenos\u0165 s kompatibiln\u00fdmi zariadeniami.<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Modern\u00fd <a href=\"https:\/\/pcsluzba.sk\/blog\/slovnik-pojmov\/#router\">router<\/a> alebo mesh syst\u00e9m m\u00f4\u017ee pou\u017e\u00edva\u0165 viac p\u00e1siem naraz a zariadenia medzi nimi pod\u013ea potreby prep\u00edna\u0165. D\u00f4le\u017eit\u00e9 je spr\u00e1vne umiestnenie zariaden\u00ed a kvalitn\u00e9 pokrytie, nie iba \u010do najvy\u0161\u0161ie \u010d\u00edslo pri n\u00e1zve Wi-Fi.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ak rie\u0161ite slab\u00fd sign\u00e1l, v\u00fdpadky alebo pomal\u00fa Wi-Fi, viac n\u00e1jdete aj v \u010dl\u00e1nku <a href=\"https:\/\/pcsluzba.sk\/blog\/preco-novy-wifi-router-nemusi-vyriesit-pomaly-internet\/\">Pre\u010do nov\u00fd Wi-Fi router nemus\u00ed vyrie\u0161i\u0165 pomal\u00fd internet<\/a>.<\/p>\n\n\n\t<div class=\"pcsluzba-phone-cta\">\n\t\t<div class=\"pcsluzba-phone-cta__content\">\n\t\t\t<strong>Potrebujete lep\u0161iu alebo stabilnej\u0161iu Wi-Fi?<\/strong>\n\n\t\t\t<p>\n\t\t\t\tPom\u00f4\u017eeme s diagnostikou routera, nastaven\u00edm Wi-Fi,\n\t\t\t\tmeran\u00edm sign\u00e1lu aj n\u00e1vrhom stabiln\u00e9ho pokrytia\n\t\t\t\tdom\u00e1cnosti alebo firmy.\n\t\t\t<\/p>\n\t\t<\/div>\n\n\t\t<div class=\"pcsluzba-phone-cta__action\">\n\n\t\t\t<a href=\"tel:+421911758922\" class=\"pcsluzba-phone-button\">\n\t\t\t\t<span class=\"pcsluzba-phone-icon\" aria-hidden=\"true\">\n\t\t\t\t\t&#9742;&#65038;\n\t\t\t\t<\/span>\n\t\t\t\tZavola\u0165 0911 758 922\n\t\t\t<\/a>\n\n\t\t\t<a href=\"https:\/\/wa.me\/421911758922\" class=\"pcsluzba-whatsapp-button\" target=\"_blank\" rel=\"noopener\">\n\t\t\t\t<span class=\"pcsluzba-wa-icon\" aria-hidden=\"true\">\n\t\t\t\t\t<svg viewBox=\"0 0 32 32\" width=\"16\" height=\"16\" fill=\"currentColor\">\n\t\t\t\t\t\t<path d=\"M16.04 3C8.83 3 3 8.74 3 15.83c0 2.5.74 4.94 2.13 7.02L3 29l6.32-2.03a13.15 13.15 0 0 0 6.71 1.83h.01C23.25 28.8 29 23.06 29 15.96 29 8.86 23.25 3 16.04 3zm0 23.63a10.9 10.9 0 0 1-5.57-1.52l-.4-.24-3.75 1.2 1.23-3.62-.26-.42a10.58 10.58 0 0 1-1.67-5.7c0-5.87 4.68-10.64 10.43-10.64 5.74 0 10.42 4.77 10.42 10.64 0 5.86-4.68 10.3-10.43 10.3zm5.72-7.74c-.31-.16-1.85-.93-2.14-1.03-.29-.11-.5-.16-.71.16-.21.31-.81 1.03-.99 1.24-.18.21-.36.24-.68.08-.31-.16-1.32-.5-2.52-1.58-.93-.83-1.56-1.86-1.74-2.17-.18-.31-.02-.48.14-.64.14-.14.31-.37.47-.56.16-.18.21-.31.31-.52.1-.21.05-.39-.03-.55-.08-.16-.71-1.74-.97-2.38-.26-.62-.52-.54-.71-.55h-.61c-.21 0-.55.08-.84.39-.29.31-1.1 1.09-1.1 2.66 0 1.57 1.13 3.09 1.29 3.3.16.21 2.22 3.45 5.38 4.84.75.33 1.34.52 1.8.67.76.24 1.44.21 1.98.13.6-.09 1.85-.77 2.11-1.51.26-.75.26-1.38.18-1.51-.08-.13-.29-.21-.61-.37z\"\/>\n\t\t\t\t\t<\/svg>\n\t\t\t\t<\/span>\n\t\t\t\tNap\u00edsa\u0165 cez WhatsApp\n\t\t\t<\/a>\n\n\t\t\t<a href=\"https:\/\/pcsluzba.sk\/servis-wifi.html\" class=\"pcsluzba-service-link\">\n\t\t\t\tViac o na\u0161om servise Wi-Fi \u2192\n\t\t\t<\/a>\n\n\t\t\t<small>\n\t\t\t\tBratislava a okolie \u2022 Denne 8:00 \u2013 20:00<br>\n\t\t\t\tAj cez v\u00edkendy a sviatky\n\t\t\t<\/small>\n\n\t\t<\/div>\n\t<\/div>\n\n\t\n","protected":false},"excerpt":{"rendered":"<p>Ak\u00fd je rozdiel medzi 2,4 GHz, 5 GHz a 6 GHz Wi-Fi? Vysvetl\u00edme dosah, r\u00fdchlos\u0165, kompatibilitu, rozdiel medzi Wi-Fi 5, 6, 6E a 7 a pre\u010do to nes\u00favis\u00ed s mobiln\u00fdmi sie\u0165ami 4G a 5G.<\/p>\n","protected":false},"author":1,"featured_media":1792,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4,62],"tags":[176,321,239,322,240],"class_list":["post-1782","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tipy","category-wi-fi","tag-wi-fi","tag-wi-fi-5","tag-wi-fi-6","tag-wi-fi-6e","tag-wi-fi-7"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>2,4 GHz vs. 5 GHz vs. 6 GHz Wi-Fi \u2013 rozdiely a Wi-Fi 5\/6\/7<\/title>\n<meta name=\"description\" content=\"Ak\u00fd je rozdiel medzi 2,4 GHz, 5 GHz a 6 GHz Wi-Fi? 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