Thereare only 5 10Mhz non-overlapping channels in the 4.9Ghz spectrum, 2 20Mhz and 1 40Mhz channel. You have to pick between 5, 10, 20, or 40Mhz with MIMO. Although a lot of math could get involved, anytime you cut the bandwidth in half you lose half your throughput. Technically the larger the channel the more efficient it becomes, but it is

Forany device that uses a standard speaker driver, the Hz-KHz value is the range of audible sound vibrations that the speaker can produce. It's generally labeled as the "frequency response" and expressed in hertz, with kilohertz being a thousand hertz. So the typical frequency response for headphones, twenty hertz to twenty thousand hertz, is
Nếusử dụng sóng 2.4Ghz với độ rộng kênh là 20Mhz, tốc độ của bạn sẽ chỉ đạt được 72,2 Mbps. Nhưng nếu bạn tăng độ rộng kênh lên 40Mhz, tốc độ sẽ tăng lên gấp đôi, đạt được 150Mbps. Nếu sử dụng sóng 2.4Ghz và kênh tần (Channel band) là 1, 6, 11 thì chọn độ Inthe US, 2.4Ghz is usually distributed between channels 1, 6 and 11 at 20Mhz widths so that there's no overlap between adjacent channels. The trouble with 40Mhz is that it will overlap with adjacent channels regardless of where you put it. The one exception is if you have two APs on channels 1 and 11, the 40mhz width won't overlap.
Whenusing the 2.4GHz broadcasting radio you should generally use a channel bandwidth block 20MHz wide. This is because there are more non-overlapping channels available when using 20MHz (as opposed to 40MHz) which means there is less likelihood of congestion or clashing channels. You can also use 40MHz on the 2.4GHz broadcasting radio.
Soa wifi radio using 20 Mhz centered on Channel 1 will have signal going up to 2422 Mhz, well into Channel 3. A wifi radio centered on Channel 6 (2437 Mhz) will range down to 2426 Mhz, below Channel 4, and as high as 2448 Mhz, past Channel 8. And that assumes only 20 Mhz channel sizes. 40 Mhz is also common in the 2.4 Ghz range. ZPslQ4.
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    • which is better bandwidth 20mhz or 40mhz