1] When I use my home AP on channels 1-11, there is an uplink connection quickly, everything works fine. If I set my home AP to channel 12 or 13 (Fritzbox, 20MHz bandwidth), no uplink connection succeeds, never. Is there a limitation or networking #WIFIchannelwidth #wifi #trexxmedia WiFi Channel Width Explained: 20MHz vs 40MHz vs 80MHz vs 160MHzIn this video, we dive into the fascinating wo Onceyou find a quiet channel you can then set your width based on the quality of the experience. The wider you go the more bandwidth you 'could' get, but you may suffer with signal quality. So, find a quiet 5Ghz channel, Set your width to 80Mhz, then test. If bad reduce to 40Mhz. But I doubt you need to go down to 20Mhz on the 5Ghz band. Thenameplate bandwidth is set to be 20 MHz, rounding up to a multiple of channel width and providing some guard band for signal to attenuation along the edge of the band. (20 MHz), 187 (40 MHz), 183 (80 MHz), and 175 (160 MHz). The U-NII-6/U-NII-7 boundary is spanned by channels 115 (40 MHz), 119 (80 MHz), and channel 111 (160 MHz). 2Answers. To get 802.11n's 300mbps signaling rate, you have to do two spatial streams (a.k.a. 2x2, or 2T2R), 40MHz channels, and a short (400ns) guard interval (short GI). The fact that you're seeing a 144mbps signaling rate indicates that you've got the 2x2 and short GI right, but you're only using 20MHz channels instead of 40MHz. I know Channelwidth adalah lebar saluran 20Mhz atau 40Mhz, dan 80Mhz yang pada dasarnya sangat penting untuk mengontrol seberapa luas sinyal untuk mentransfer data. Jika Anda bingung tentang bagaimana untuk memilih channel width pada pengaturan router, Anda telah menemukan panduan yang tepat di sini.
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The20 MHz channel bandwidth makes more sense when you have no control over the Wi-Fi AP locations in your environment. It'll reduce co-channel interference if all APs use 20 MHz and pick either channel 1, 6, or 11. But if you control all AP locations, you can ensure that APs using the same 40 MHz bandwidth are not in the same area.

Channelbandwidth: The maximum channel bandwidth that is supported. Starting with 802.11n, channels can be combined to create a wider channel that allows for more data to be transmitted during a single transmission. With 802.11n for 5GHz band, two 20MHz channels can be combined to create a 40MHz channel.
Awireless network broadcast by a particular AP is known as a basic service set (BSS). To help mitigate the effects of co-channel interference, 802.11ax allows for a 6-bit BSS color field in the SIG-A field at the physical layer, as well as within management frames. This allows for up to 63 different BSS color values. Ctm0.
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    • which is better bandwidth 20mhz or 40mhz