Memo "Improving the quality of Wi-Fi connection"

There are already many high-quality articles on Habré with a detailed explanation of how Wi-Fi works and how to configure it. However, all of these articles have at least several drawbacks that prevent them from being given as a guide to action to a conditional neighbor in a high-rise building or to hang a printout on the wall in the entrance.





Link to the memo in pdf (wdho.ru)







The cheat sheet contains recommendations that are not found in other articles:

• to optimize the physical location of the router in the room
• correct alignment of antennas to obtain maximum horizontal coverage and reduce interference between building floors
• the need to take into account the physics of the near field
• the need for correct grounding of interference sources

As a recommendation for the choice of channels in the memo, the generally accepted recommendations for regions other than the USA and Canada are used, i.e. 1/5/9/13 channels.





As a supplement in the context of turning off unused equipment, an example is given that is relevant only for Moscow, but useful because "you can't live like that."





In general, I hope for comments and additions. If something important needs to be added or something unnecessary to remove, be sure to write.



Update 2020.07.10 : The memo has existed since '13, was distributed to those in need upon request. I didn't upload it to Habr for many reasons. I posted a memo, not an article for constructive criticism of the memo as a document. Actually constructive criticism received , thanksaik, now I am slowly rewriting the document with a fresh look. After all the modifications, the document will be posted on Fishki net and JoyReactor Picaba, because it is there that his target audience is ordinary network users.



Update 2020.07.12 : The Memo has been overhauled, it has become shorter and now it is a step-by-step guide. Work in progress, you need to add links to applications. I know good applications for Android and Windows, but I don't know for other systems, if you know, please advise!



Update 2020.07.13 : Everything seems to have been done ^^



Update 2020.07.16 : Typography, minor fixes and additions, removed redundant details, beauty guidance and reduced QR codes.



Update 2020.07.17: Cosmetics text, minor adjustments on the settings.



Update 2020.07.19 : Cosmetics for the text, clarifications on the settings. I consider the document ready.



Update 2020.07.20 : Added recommendation not to use repeaters.