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WiFi channels 1, 6 and 11 are they the best?

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Wired connections are not affected by interference in the environment. If we throw a 30 meter Ethernet cable, the signal will always arrive stable at the destination without loss if we have a good cable. However, with the Wifi the situation is very different, and more in the band of 2.4 GHz, which is one of the most saturated today. But there are ways to make it go better.

If you live in a building, there are probably dozens of Wi-Fi networks around you. They all operate in 2.4GHz band, while some others also do it in the 5 GHz, and it may even be that one of your devices is already compatible with the new 6 GHz. However, the 2.4 GHz, being the most used, is the that more tends to saturate and generate interference.

The 2.4 GHz band in Europe operates between the 2401 and 2472MHz. Among those 71 MHz we find a total of 13 channels of 22 MHz each, which overlap each other. Each channel concentrates its maximum frequency in steps of 5 MHz, placing, for example, channel 1 at 2,412 MHz, channel 2 at 2,417 MHz, and so on until reaching 2,472 MHz of channel 13.

WiFi channels 1 6 and 11 are they the best

Why does interference occur?

As happens to any wireless signal, WiFi is likely to have interference with other WiFi signals nearby overlapping frequencies, or even from other devices that also operate on those frequencies. For example, Bluetooth devices or microwaves in the kitchen emit signals at 2.4 GHz, and a microwave can, while it is turned on, create interference in the signal of our WiFi network.

The WiFi channels overlap each other, but normally wireless networks use, by default, the channels 1, 6 or 11. We see the reason in the previous graph, where we can see that these three channels do not overlap each other. In other words, it is the number maximum channels that may be available without any overlap, since there are only 71MHz to use spectrum, and each channel occupies 22MHz.

So why don’t all routers use just those three channels in the 2.4 GHz band? Well, because there would be even more interference within the channel. There are applications for mobile phones and computers that allow you to know how saturated your environment is. For example, with Wi-Fi Analyzer for Windows 10, you can see which channels are being used by adjacent networks on 2.4 GHz in the graph, as well as which channels are using 5 GHz. Looking at the graph, in my case it would not be a bad idea to use channel 1 , which is also the one that offers the most range (no matter how small the difference).

WiFi channels 1 6 and 11 are they the best

1642097515 297 WiFi channels 1 6 and 11 are they the best

Other programs like inSSIDer They even have recommendations on which channels to use. In fact, as soon as you open it, it effectively detects that the canal 1 is the least saturated around me, and that the performance could improve if I change it in the router. Some modern routers automatically choose the least crowded WiFi channel, but unfortunately most don’t. In addition, the program also measures WiFi usage on each channel, including nearby networks.
1642097515 623 WiFi channels 1 6 and 11 are they the best

Therefore, it is best to always use the channels 1, 6 or 11, since they are the ones further away from each other and do not overlap. Of them, it is best to choose the one that uses fewer networks around us, and, above all, the networks that are farthest from ours, which we can see in data such as the attenuation. The closer the value is to -90dBm, the less powerful the WiFi signal that reaches our receiver will be.

In the 5 GHz there are hardly any interference problems

How much the higher the frequency than a channel is available, the more speed we can achieve. That is why it was launched 5 GHz band, with a smaller range, and with a greater number of channels, which are also broader. Thus, most people who use WiFi do so near the router, and thus do not have to overload the surroundings.
1642097516 827 WiFi channels 1 6 and 11 are they the best

Thus, as there are more and more routers and devices using 5 GHz thanks to the higher speed they offer, these frequencies can also interfere with each other. with the band of 6GHz will help further reduce the load at the frequencies of 2.4 and 5GHz, in addition to obtaining greater speed. With 6 GHz there will be in Europe up to 3 channels of 160 MHz bandwidth, which do not overlap each other. With the 5 GHz, the channels are up to 80 MHz.

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Apple Declares 2013 and 2014 iMacs Obsolete and Watch Series 2 Smartwatches ‘Vintage’

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Apple Declares 2013 and 2014 iMacs Obsolete and Watch Series

Apple has added three models of iMacs to its list of obsolete products: a 21.5-inch screen from 2013, a 21.5-inch screen from 2014, and a 27-inch Retina 5K screen also from 2014.

Apple Declares 2013 and 2014 iMacs Obsolete and Watch Series 2 Smartwatches 'Vintage'

Apple typically deprecates products seven years after they were released, so it’s no surprise that the 2013 and 2014 iMacs are on the list.

As for smart watches Apple Watch Series 2, they are recognized as “vintage”. This category usually includes devices that have been released for five years. There may be problems with the official repair of the aforementioned iMacs.

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There are almost 1 billion 5G users. Ericsson report shows that operators often ask for more money for such tariffs.

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There are almost 1 billion 5G users Ericsson report shows

According to a report by Ericsson cited by The Verge, by the end of this year, the number of 5G subscribers in the world will reach 1 billion.

Of course, this is far from the performance of 4G networks, which are now used by about 5 billion people, but still this is a fairly significant part of the market.

There are almost 1 billion 5G users. Ericsson report shows that operators often ask for more money for such tariffs.

Of course, 5G adoption is far from uneven. In North America, about 35% of subscribers will use 5G networks by the end of this year.

At the same time, the report indicates that operators often ask for more money for the higher speeds offered by new networks. Dividing into corresponding tariffs is popular among operators in Western Europe, but overall, 25% of operators worldwide charge extra for 5G. And the average markup is 40%.

Ericsson believes that, unfortunately, this trend will continue for several more years, as operators need to compensate for the costs of developing a new network.

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Is Apple Helping the Chinese Government Fight Protests? The company cut the AirDrop function in the Middle Kingdom

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Is Apple Helping the Chinese Government Fight Protests The company

The history of protests in China is overgrown with new interesting details related to IT companies.

Is Apple Helping the Chinese Government Fight Protests?  The company cut the AirDrop function in the Middle Kingdom

Just weeks before the protests began, Apple reportedly made a major change to how AirDrop works, and only in China. After updating to iOS 16.1.1, AirDrop in the mode of receiving messages from everyone became possible only for 10 minutes, after which AirDrop simply turns off. In normal mode, AirDrop has no time limit, as there is none now and all over the world outside of China.

The fact is that AirDrop is one of the ways protesters communicate, and not only in China. AirDrop works locally in smartphone-to-smartphone mode, without relying on external networks, so it cannot simply be blocked or read data. But in this case, for some reason, Apple decided to seriously change the function, although it did not turn it off completely.

The CNBC resource also notes that the corresponding update was released a month after Chinese President Xi Jinping was re-elected for a third term.

Recall that Huawei smartphones have been noticed that they automatically delete videos that depict events related to protests in China.

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