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2.4Ghz 20MHz or 40MHz channel width with a large amount of wifi networks

mariusz689 27261 2
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Treść została przetłumaczona polish » english Zobacz oryginalną wersję tematu
  • #1 14576898
    mariusz689
    Level 15  
    Hello,
    For over half a year my network has had problems with the fluidity of 2.4GHz transmission. Most people are already on 5GHz and for several years I have not connected anyone new to 2.4GHz because there is a large amount of networks at 2.4GHz. After taking a scan of the area from my roof, the main antenna sees about 35 units of wifi. Probably half of them are home routers operating on the 2.4 GHz band. A few years ago, it was not a problem to send about (2MB / s) on one antenna, the channel width was 20mhz, the usual receiving antenna was 2.5dBi. distance 150 meters. Today there is a problem even when the client has a directional antenna at a distance (150m) to transmit 10mbps, in peak hours the maximum transmission is about 4-8mbps. ((I will not write who is so wise from this forum who made a neighborhood network in the last 2 years on 2.4GHz and consumes almost the entire 2.4GHz band. devices ubnt nanostation m2. Unfortunately, now for me, from then on, the pings can increase over 1000ms ...))

    Hence my topic on the forum. Transferring a few customers for whom an expense of PLN 80 is a lot, and the purchase of ubnt loco m5 antennas is about PLN 250 is an unattainable price for them. I would like to improve the network with less cost. I have a UBIQUITI device on the roof that can handle 40MHz channel width. Will changing the channel width from 20MHz to 40MHz with so many AP-other networks in the area improve or deteriorate the bandwidth in my network? Do you see any alternative solution in such a situation? to reach about 18mbps without any problems. ? I would like to add that the weakest signal on 2.4GHz is about -65dBm. Most connects to about -46dBm or -58dBm

    At 5Ghz at a distance of about 1.2KM, there is no problem to send as much as the twisted pair will pass through. (about 100mbps)

    Greetings.
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  • #2 14576963
    bestboy21
    Level 40  
    Airmax on?
    The narrower the channel, the less susceptible to interference, but on the other hand, the narrower the lower the transfer rate, as they say, such things need to be checked in the field because guesswork does not make sense.
  • #3 14577182
    smario11
    Level 31  
    Move all your customers to 5Ghz and do 2.4Ghz, that's it.
    You replace the equipment with your customers at your own expense. It's best to leave it as it is and tell them that if they pay for Nanostation M5 Loco, they will have a faster net.
    In sum, if they complain that it is expensive, you can settle it for them in 3-4 months for free
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