In the masterpiece, we focus on improving the radio wave condition of Wi-Fi and explain.As you can see when you start using it, Wi-Fi radio waves do not fly as expected.At home where Wi-Fi communication situation is not good, we are looking for a little more comfortable.
Wi-Fiルーターの電波の入りを良くするため、今回は前回に引き続きWi-Fiのチャンネル設定を解説している。スマートスピーカー「Amazon Echo Dot」を5GHz帯で接続するには、ちょっと注意が必要だったりするList of articles series "I don't know" of home Wi-Fi!
2 for frequency bandwidth used in Wi-Fi.There are 4GHz band and 5GHz band.Last time, use the channel used in Wi-Fi effectively 2.I checked the condition of the 4GHz band and the channel.
The 5GHz band is relatively common, and the bandwidth can be used.By bundling multiple channels, it is good to connect with a 5GHz band for smartphones and PCs that support 11n and 11acs that can be speeded up using a wide bandwidth for communication.
2.The 4GHz band is only a sub, 2.Use it as a sub, such as using a slightly older device that can only be used in the 4GHz band or a device that wants to prioritize the connection distance over the communication speed.
In order to use for each frequency band in this way, it is easy to understand it by making it possible to distinguish it with SSID.2.The band steering function, which has the same SSID of the 4GHz band and the 5GHz band, is convenient, such as searching for vacant channels, but it is natural to set it off.
2.The channel used in each of the 4GHz band and the 5GHz band can be set by the Wi-Fi router side.If there is no problem, such as the connection is easy, there is no problem because it will be optimized if you set it to auto.
If you can check the empty channel in the previous method, if you manually fix it to the channel, you will be able to stabilize the connection relatively.
Let's give another tips for choosing a channel.The 5GHz band is divided into three groups, "W52 (5150-5250MHz, 36-48ch)", "W53 (5250-5350MHz, 52-64ch)", and "W56 (5470-5725MHz, 100-140ch)".There is [*1].
[*1] …… Actually, there is a Japanese -specific band called “J52”, and there was also a 11A compatible router that could be used before, but it is not used in the current product.
Of these, W53 and W56 use the same channel as weather observation, ships, and aviation radar, and when these radio waves are detected, "DFS (Dynamic Frequency Selection)), which is forcibly moved to another channel or adjusts output."In addition to the mechanism, W53 cannot be used outdoors.
5GHz帯のチャンネル表示。W52、W53、W56という分類がある。このうちW53とW56をうまく使いこなすのがコツだConsidering the existence of DFS, you may think that it is easier to stabilize W53 and W56 and specify only W52.This is the correct answer, but in fact W52 is often crowded in the 5GHz band.
There is no way to know whether the majority of people think in the same way or if it is simply the order of starting frequency scan, but even if you look at the actual channel signal graph display, you are often concentrated on W52.It's true.
Furthermore, this W53 and W56, which are unique to Japan, are omitted, and may not be available.If you check the usage status of the neighborhood, if you are vacant, it is recommended to use W52 first.
However, if W52 is crowded, consider using W53 or W56.If a Wi-Fi router is installed indoors, it will not be frequent to receive radar radio waves unless it is by the window.The weather radar mainly uses W53 frequencies, so it is especially recommended to use W56 aggressively.
However, even on the Wi-Fi unit side, there are also devices that have omitted W53 and W56, so be careful.For major products, for example, Amazon's smart speakers and tablets are only compatible with W52.In these products, if the 5GHz band is set to Wi-Fi router to W53 or W56, the SSID should not be visible when the Wi-Fi is connected.
If you want to connect W52-only devices in the 5GHz band, you have to set the Wi-Fi router to set to W52.In these cases, high -speed communication is given up with equipment that only supports W52..Using the 4GHz band, the 5GHz band is recommended to continue using W53 and W56.Of course, if it is empty, you can use W52, but in this case it is better to explicitly set the W52 channel instead of auto.
TP-Link「Archer C3150」は、W52以外のチャンネルを指定できない。このように、日本独自のWi-Fi仕様に対応していない海外製品もある