{"id":1164,"date":"2026-05-12T23:38:48","date_gmt":"2026-05-12T23:38:48","guid":{"rendered":"https:\/\/edk-tech.net\/?p=1164"},"modified":"2026-05-13T01:18:54","modified_gmt":"2026-05-13T01:18:54","slug":"wi-fi-standards","status":"publish","type":"post","link":"https:\/\/edk-tech.net\/?p=1164","title":{"rendered":"Wi-Fi Standards"},"content":{"rendered":"\n

A complete reference for Wi\u2011Fi standards, frequencies, channels, security, antennas, and troubleshooting.<\/p>\n\n\n\n

Wireless networking is built on the IEEE 802.11<\/a> family of standards. Each generation improves speed, efficiency, and spectrum usage. This toolkit provides a technician\u2011grade reference for Wi\u2011Fi technologies, frequency bands<\/a>, channel planning, security, and performance optimization.<\/p>\n\n\n\n

Wi\u2011Fi is defined by the IEEE 802.11 family of wireless networking standards. Each generation improves speed, range, efficiency, and spectrum usage. This guide summarizes every major Wi\u2011Fi standard from 802.11a to Wi\u2011Fi 7 and provides a technician\u2011grade reference for Wi\u2011Fi technologies, frequency bands, channel planning, security, and performance optimization.<\/p>\n\n\n\n

Wi\u2011Fi Standards Overview (802.11a \u2192 Wi\u2011Fi 7)<\/h2>\n\n\n\n
Specification<\/th>Standard<\/th><\/tr>
802.11a<\/th>802.11b<\/th>802.11g<\/th>802.11n (Wi\u2011Fi 4)<\/th>802.11ac (Wi\u2011Fi 5)<\/th>802.11ax (Wi\u2011Fi 6)<\/th>802.11be (Wi\u2011Fi 7)<\/th><\/tr><\/thead>
Frequency<\/th>5.75 GHz (U-NII)<\/td>2.4  GHz (ISM)<\/td>2.4 GHz (ISM)<\/td>2.4 GHz (ISM) or 5 GHz (U-NII)<\/td>5 GHz (optionally 2.4 GHz for compatibility)<\/td>2.4, 5, 6 GHz (Wi\u2011Fi 6E adds 6 GHz)<\/td>2.4\/5\/6 GHz<\/td><\/tr>
Maximum speed<\/th>54 Mbps<\/td>11 Mbps<\/td>54 Mbps<\/td>150, 300, or 600 Mbps (MIMO)<\/td>693 Mbps, 1.6 Gbps, 3.5 Gbps, 6.9 Gbps<\/td>up to 9.6 Gbps<\/td>up to 46.1 Gbps<\/td><\/tr>
Maximum range<\/th>150 Ft.<\/td>300 Ft.<\/td>300 Ft.<\/td>1200 Ft.<\/td><\/td><\/td><\/td><\/tr>
Modulation type<\/th><\/td><\/td><\/td><\/td>MU\u2011MIMO, 256\u2011QAM<\/td>OFDMA (massive efficiency boost),
1024\u2011QAM, Target Wake Time (TWT)<\/td>		<\/td><\/tr>
Channels
(non-overlapped)<\/th>		23 total, 12 non\u2011overlapping<\/td>11 total, 3 non\u2011overlapping<\/td>11 total, 3 non\u2011overlapping<\/td>5 GHz \u2192 23 total (12 or 6 non\u2011overlapping),
2.4 GHz \u2192 11 total (3 or 1 non\u2011overlapping)<\/td>		<\/td><\/td><\/td><\/tr>
Channel widths<\/th><\/td><\/td><\/td><\/td>80\/160 MHz<\/td><\/td>320 MHz<\/td><\/tr>
Backwards-compatibility<\/th>N\/A<\/td>No<\/td>802.11b<\/td>802.11a\/b\/g (depends on frequencies supported)<\/td><\/td><\/td><\/td><\/tr>
Notes<\/th>First 5 GHz Wi\u2011Fi standard; less interference but shorter range.<\/td>Cheap, long\u2011range, but slow and interference\u2011prone.<\/td><\/td>Introduced MIMO, channel bonding (40 MHz), and dual\u2011band Wi\u2011Fi.<\/td>Major speed boost; dominant standard for years.<\/td>Designed for dense environments (apartments, stadiums).<\/td>Extremely high throughput; next\u2011generation wireless.<\/td><\/tr><\/tbody><\/table>
Wi\u2011Fi Standards<\/figcaption><\/figure>\n\n\n\n
 <\/td>Frequency<\/td>Max Speed<\/td>Max Range<\/td>Channels (non-overlapping)<\/td>Backwards-compatibility<\/td><\/tr>
802.11a<\/td>5.725 GHz \u2013 5.850 (U-NII)<\/td>54 Mbps<\/td>150 Ft.  <\/td>23 (12)<\/td>N\/A<\/td><\/tr>
802.11b<\/td>2.4 GHz (ISM)<\/td>11 Mbps<\/td>300 Ft.  <\/td>11 (3)<\/td>No<\/td><\/tr>
802.11g<\/td>2.4 GHz (ISM)<\/td>54 Mbps<\/td>300 Ft.  <\/td>11 (3)<\/td>With 802.11b<\/td><\/tr>
802.11n<\/td>2.4 GHz (ISM) or 5 GHz (U-NII)<\/td>150, 300, or 600 Mbps<\/td>1200 Ft.<\/td>5.75 GHz–23 (12 or 6) 2.4 GHz–11 (3 or 1)<\/td>With 802.11a\/b\/g, depending on frequencies supported<\/td><\/tr>
802.11ac (Wi-Fi<\/a> 5)<\/td>2.4, 5<\/td>693 Mbps, 1.6 Gbps, 3.5 Gbps, 6.9 Gbps<\/td> <\/td> <\/td>802.11a\/b\/g\/n<\/td><\/tr>
802.11ax (Wi-Fi 6)<\/td>2.4, 5, 6<\/td>1.15, 2.3, 4.8, 9.6 Gbps<\/td> <\/td> <\/td> <\/td><\/tr>
802.11be (Wi-Fi 7)<\/td>2.4, 5, 6<\/td>11.5, 23, 35, 46.1 Gbps<\/td> <\/td> <\/td> <\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
Standard<\/th>Wi\u2011Fi Name<\/th>Frequency<\/th>Max Speed<\/th>Channel Widths<\/th>Key Features<\/th><\/tr><\/thead>
802.11a (1999)<\/strong><\/td>\u2014<\/td>5 GHz<\/td>54 Mbps<\/td>20 MHz<\/td>OFDM, low interference<\/td><\/tr>
802.11b (1999)<\/strong><\/td>\u2014<\/td>2.4 GHz<\/td>11 Mbps<\/td>20 MHz<\/td>DSSS, long range<\/td><\/tr>
802.11g (2003)<\/strong><\/td>\u2014<\/td>2.4 GHz<\/td>54 Mbps<\/td>20 MHz<\/td>OFDM, backward\u2011compatible<\/td><\/tr>
802.11n (2009)<\/strong><\/td>Wi\u2011Fi 4<\/td>2.4\/5 GHz<\/td>150\u2013600 Mbps<\/td>20\/40 MHz<\/td>MIMO, channel bonding<\/td><\/tr>
802.11ac (2013)<\/strong><\/td>Wi\u2011Fi 5<\/td>5 GHz<\/td>693 Mbps\u20136.9 Gbps<\/td>20\/40\/80\/160 MHz<\/td>MU\u2011MIMO, 256\u2011QAM<\/td><\/tr>
802.11ax (2019\u20132021)<\/strong><\/td>Wi\u2011Fi 6\/6E<\/td>2.4\/5\/6 GHz<\/td>Up to 9.6 Gbps<\/td>20\u2013160 MHz<\/td>OFDMA, 1024\u2011QAM, TWT<\/td><\/tr>
802.11be (2024+)<\/strong><\/td>Wi\u2011Fi 7<\/td>2.4\/5\/6 GHz<\/td>Up to 46.1 Gbps<\/td>20\u2013320 MHz<\/td>MLO, 4096\u2011QAM<\/td><\/tr><\/tbody><\/table>
Wi\u2011Fi Standards<\/figcaption><\/figure>\n\n\n\n

Wi\u2011Fi Frequency Bands<\/h2>\n\n\n\n

2.4 GHz<\/strong><\/h3>\n\n\n\n
    \n
  • Longest range<\/li>\n\n\n\n
  • Lowest throughput<\/li>\n\n\n\n
  • Most interference (Bluetooth, microwaves, IoT)<\/li>\n\n\n\n
  • Only 3 non\u2011overlapping channels<\/strong> (1, 6, 11)<\/li>\n<\/ul>\n\n\n\n

    5 GHz<\/strong><\/h3>\n\n\n\n
      \n
    • Medium range<\/li>\n\n\n\n
    • High throughput<\/li>\n\n\n\n
    • Many channels (DFS and non\u2011DFS)<\/li>\n\n\n\n
    • Supports 20\/40\/80\/160 MHz<\/li>\n<\/ul>\n\n\n\n

      6 GHz (Wi\u2011Fi 6E \/ Wi\u2011Fi 7)<\/strong><\/h3>\n\n\n\n
        \n
      • Shortest range<\/li>\n\n\n\n
      • Extremely high throughput<\/li>\n\n\n\n
      • Clean spectrum<\/li>\n\n\n\n
      • Up to 59 channels<\/strong> depending on region<\/li>\n\n\n\n
      • Supports 160\/320 MHz channels<\/li>\n<\/ul>\n\n\n\n

        Channel Widths & Channel Planning<\/h2>\n\n\n\n

        Channel Widths<\/h3>\n\n\n\n
          \n
        • 20 MHz<\/strong> \u2014 stable, best for crowded areas<\/li>\n\n\n\n
        • 40 MHz<\/strong> \u2014 faster, but more interference<\/li>\n\n\n\n
        • 80 MHz<\/strong> \u2014 high throughput (Wi\u2011Fi 5+)<\/li>\n\n\n\n
        • 160 MHz<\/strong> \u2014 very high throughput (Wi\u2011Fi 6\/7)<\/li>\n\n\n\n
        • 320 MHz<\/strong> \u2014 Wi\u2011Fi 7 only<\/li>\n<\/ul>\n\n\n\n

          Channel Planning Tips<\/h3>\n\n\n\n
            \n
          • Use 1\/6\/11<\/strong> on 2.4 GHz<\/li>\n\n\n\n
          • Avoid DFS channels if you want maximum compatibility<\/li>\n\n\n\n
          • Use 80 MHz only when the spectrum is clean<\/li>\n\n\n\n
          • Use 6 GHz for high\u2011density, high\u2011speed environments<\/li>\n<\/ul>\n\n\n\n

            Wi\u2011Fi Security Standards<\/h2>\n\n\n\n
            Standard<\/th>Status<\/th>Notes<\/th><\/tr><\/thead>
            WEP<\/strong><\/td>Obsolete<\/td>Broken encryption<\/td><\/tr>
            WPA<\/a><\/strong><\/td>Legacy<\/td>TKIP, insecure<\/td><\/tr>
            WPA2<\/a><\/strong><\/td>Current<\/td>AES\u2011CCMP, widely used<\/td><\/tr>
            WPA3<\/a><\/strong><\/td>Modern<\/td>SAE handshake, stronger protection<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

            Recommended: Use WPA3\u2011Personal<\/strong> or WPA2\/WPA3 mixed mode<\/strong> for compatibility.<\/h3>\n\n\n\n

            Antennas, MIMO, MU\u2011MIMO, OFDMA, Beamforming<\/h2>\n\n\n\n

            MIMO (Multiple\u2011Input Multiple\u2011Output)<\/h3>\n\n\n\n
              \n
            • Multiple antennas increase throughput<\/li>\n\n\n\n
            • Introduced in 802.11n<\/li>\n<\/ul>\n\n\n\n

              MU\u2011MIMO (Multi\u2011User MIMO)<\/h3>\n\n\n\n
                \n
              • Router can talk to multiple clients simultaneously<\/li>\n\n\n\n
              • Introduced in 802.11ac<\/li>\n<\/ul>\n\n\n\n

                OFDMA (Orthogonal Frequency Division Multiple Access)<\/h3>\n\n\n\n
                  \n
                • Splits channels into subcarriers<\/li>\n\n\n\n
                • Great for dense environments<\/li>\n\n\n\n
                • Introduced in 802.11ax<\/li>\n<\/ul>\n\n\n\n

                  Beamforming<\/h3>\n\n\n\n
                    \n
                  • Directs signal toward the client<\/li>\n\n\n\n
                  • Improves range and stability<\/li>\n<\/ul>\n\n\n\n

                    Wi\u2011Fi Device Types<\/h2>\n\n\n\n
                      \n
                    • Router<\/strong> \u2014 gateway + Wi\u2011Fi + switch<\/li>\n\n\n\n
                    • Access Point (AP)<\/strong> \u2014 dedicated wireless endpoint<\/li>\n\n\n\n
                    • Mesh System<\/strong> \u2014 multi\u2011node coverage<\/li>\n\n\n\n
                    • Range Extender<\/strong> \u2014 repeats signal (not recommended)<\/li>\n\n\n\n
                    • Wireless Bridge<\/strong> \u2014 connects wired devices to Wi\u2011Fi<\/li>\n\n\n\n
                    • Client Adapter<\/strong> \u2014 USB\/PCIe Wi\u2011Fi card<\/li>\n<\/ul>\n\n\n\n

                      Wireless Site Survey Basics<\/h2>\n\n\n\n

                      Key Metrics<\/h3>\n\n\n\n
                        \n
                      • RSSI<\/strong> (signal strength)<\/li>\n\n\n\n
                      • SNR<\/strong> (signal\u2011to\u2011noise ratio)<\/li>\n\n\n\n
                      • Channel overlap<\/strong><\/li>\n\n\n\n
                      • Interference sources<\/strong><\/li>\n<\/ul>\n\n\n\n

                        Placement Rules<\/h3>\n\n\n\n
                          \n
                        • Place APs high and central<\/li>\n\n\n\n
                        • Avoid metal, concrete, and appliances<\/li>\n\n\n\n
                        • Use wired backhaul for mesh systems<\/li>\n<\/ul>\n\n\n\n

                          Troubleshooting Quick Reference<\/h2>\n\n\n\n
                            \n
                          • Check signal strength<\/li>\n\n\n\n
                          • Switch to 5 GHz or 6 GHz<\/li>\n\n\n\n
                          • Change channels<\/li>\n\n\n\n
                          • Update firmware<\/li>\n\n\n\n
                          • Reposition AP<\/li>\n\n\n\n
                          • Reduce channel width<\/li>\n\n\n\n
                          • Check for interference<\/li>\n\n\n\n
                          • Restart DHCP or router<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"

                            A complete reference for Wi\u2011Fi standards, frequencies, channels, security, antennas, and troubleshooting. Wireless networking is built on the IEEE 802.11 family of standards. Each generation improves speed, efficiency, and spectrum usage. This toolkit provides a technician\u2011grade reference for Wi\u2011Fi technologies, frequency bands, channel planning, security, and performance optimization. Wi\u2011Fi is defined by the IEEE 802.11 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"pagelayer_contact_templates":[],"_pagelayer_content":"","_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[23,32],"tags":[],"class_list":{"0":"post-1164","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-knowledgebase","7":"category-networking"},"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/peQefU-iM","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/edk-tech.net\/index.php?rest_route=\/wp\/v2\/posts\/1164","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/edk-tech.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/edk-tech.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/edk-tech.net\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/edk-tech.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1164"}],"version-history":[{"count":9,"href":"https:\/\/edk-tech.net\/index.php?rest_route=\/wp\/v2\/posts\/1164\/revisions"}],"predecessor-version":[{"id":1189,"href":"https:\/\/edk-tech.net\/index.php?rest_route=\/wp\/v2\/posts\/1164\/revisions\/1189"}],"wp:attachment":[{"href":"https:\/\/edk-tech.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1164"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/edk-tech.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1164"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/edk-tech.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1164"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}