perbedaan bandwidth 20mhz dan 40 mhz sudah pasti sangat jelas dari segi sudut pancaran sinyal wifi, dan tingkat interfrensi dengan sinyal lain di bahas full
Bands vs Channels vs Streams. Wi-Fi uses three frequency bands, including 2.4GHz, 5GHz, and 6GHz.. Depending on the Wi-Fi standards and hardware, each band can have multiple channels of different widths, including 20MHz, 40MHz, 80MHz, 160Mhz, and 320MHz. The wider a channel is, the more bandwidth it has.
40 mhz not supported by android device Only use 40mhz if you want speed higher than 50 mbps If you want to use with laptop so first download wifi analyser app check if there's channel available like 1-6 or 7-11 if yes then select 40 mhz with based on channel 1 or 11 Now check on google how to use 40 mhz wifi on windows
Ia have AC86U with Merlin FW 384.17. I noticed a limited speed at 2.4 GHz. No device connected can not exceed 144Mbps - Wifi Log show 144/144 and signal -34 dBm (distance 2m). I'm in the country house with no other WiFi signal (no other routers near or other disturbances). I know, that I achieved a higher rates (300/300) with older FW (Merlin Şikayet. Merhaba, Modemimden 20 Mhz yerine 40 mhz wireless bant genişliğini seçtiğimde çok uzaklara gitsem bile 20 mbit gibi hızı tam kapasite alabiliyorum. 20 MHZ de ise dalgalı bir hız alıyorum. Wifi network hızını ölçen program 20 mhz de max 144 mbit ölçerken 40 mhz de 300 mbit ölçüyor. 2.4ghz @ 20mhz width on channel 6. 5ghz @ 40mhz width on channel 36. Unifi Access Point: 2.4ghz @ 20mhz width on channel 11. 5ghz @ 40mhz width on channel 149. EDIT: Access Point doesnt support channel 149 so gone with 44. Doesnt conflict with 36 and is non DFS. According to the Unifi Controller settings, all channels except 36 to 44 are DFS. .