Bluetooth and WiFi are an undesirable neighborhood
Good day, friends!
I think that none of you will deny that such convenient technologies as Bluetooth and WiFi greatly facilitate (and shorten) our lives, making the interaction of devices at a distance soft and silky. However, today I discovered a terrible fact - it’s better not to keep Bluetooth and WiFi dongles in the adjacent USB connectors.
My home has MiFi - Huawei E560. The finest thing brings the Internet to an old village house, in which there is no, there has not been and will not be a wired telephone, wired Internet and anything else wired, except electricity. Previously, the Internet was provided with the help of a veteran of the Russian mobile Internetization of the country - a USB modem Option iCon 225, which at the dawn of the emergence of the mobile Internet was bought for a whopping 3,000 rubles from Beeline and from which even Beeline himself now disowns with words, they say we have such a modem. By itself, the modem is branded, with a sticker and, like, locked up. Now, having tasted all the delights of the NetGear JWNR2000v2 WiFi router, which I have been working in a city apartment for a couple of months, I purchased the very same MiFi and Trendnet TEW-649UB WiFi dongle for delivering the Internet to a PC. Cheap and angry.
')
Dongle settled in a free USB-connector and started his work, from which I have been tormented for the last couple of weeks with constant communication interruptions, strange “heavy” visits to the web-interface of the router and slow Internet. Although the connection to MiFi from a tablet and a smartphone was excellent. And why? Because I put the WiFi dongle for the PC into the USB connector next to the Bluetooth dongle.
Wikipedia tells us that "Bluetooth radio communication is carried out in the ISM-band (born Industry, Science and Medicine), which is used in various household appliances and wireless networks (the licensing-free range is 2.4-2.4835 GHz)." She also tells us that WiFi standards b, g and n also work in the same frequency range. What does it mean? The CEP will explain this all with interferences, and I have to agree. It's them.
It is the presence of two dongles in close proximity that explains that receiving / transmitting via a WiFi dongle worked so hard, giving me all sorts of inconveniences, and transferring a file through Bluettoth completely blocked Internet access. Now the WiFi dongle is connected via a USB extension cable and there are no problems with signal quality. In laptops and other small all-collecting machines, these modules, I believe, are shielded from each other, which is reasonable.
I will not load anyone with technical details, because not an expert in this and it has already been done for me. Just leave here a couple of links, in which the effect on WiFi of various factors is analyzed in more detail:
1) Why wifi doesn't work well and how to fix it. Part 1.
2) Why wifi doesn't work well and how to fix it. Part 2.
3) A small article from the Zyxel Knowledge Base: “What influences the performance of wireless Wi-Fi networks? What could be a source of interference and what are their possible causes? ”
I hope that this information will help someone. Thank.
I think that none of you will deny that such convenient technologies as Bluetooth and WiFi greatly facilitate (and shorten) our lives, making the interaction of devices at a distance soft and silky. However, today I discovered a terrible fact - it’s better not to keep Bluetooth and WiFi dongles in the adjacent USB connectors.
My home has MiFi - Huawei E560. The finest thing brings the Internet to an old village house, in which there is no, there has not been and will not be a wired telephone, wired Internet and anything else wired, except electricity. Previously, the Internet was provided with the help of a veteran of the Russian mobile Internetization of the country - a USB modem Option iCon 225, which at the dawn of the emergence of the mobile Internet was bought for a whopping 3,000 rubles from Beeline and from which even Beeline himself now disowns with words, they say we have such a modem. By itself, the modem is branded, with a sticker and, like, locked up. Now, having tasted all the delights of the NetGear JWNR2000v2 WiFi router, which I have been working in a city apartment for a couple of months, I purchased the very same MiFi and Trendnet TEW-649UB WiFi dongle for delivering the Internet to a PC. Cheap and angry.
')
Dongle settled in a free USB-connector and started his work, from which I have been tormented for the last couple of weeks with constant communication interruptions, strange “heavy” visits to the web-interface of the router and slow Internet. Although the connection to MiFi from a tablet and a smartphone was excellent. And why? Because I put the WiFi dongle for the PC into the USB connector next to the Bluetooth dongle.
Wikipedia tells us that "Bluetooth radio communication is carried out in the ISM-band (born Industry, Science and Medicine), which is used in various household appliances and wireless networks (the licensing-free range is 2.4-2.4835 GHz)." She also tells us that WiFi standards b, g and n also work in the same frequency range. What does it mean? The CEP will explain this all with interferences, and I have to agree. It's them.
It is the presence of two dongles in close proximity that explains that receiving / transmitting via a WiFi dongle worked so hard, giving me all sorts of inconveniences, and transferring a file through Bluettoth completely blocked Internet access. Now the WiFi dongle is connected via a USB extension cable and there are no problems with signal quality. In laptops and other small all-collecting machines, these modules, I believe, are shielded from each other, which is reasonable.
I will not load anyone with technical details, because not an expert in this and it has already been done for me. Just leave here a couple of links, in which the effect on WiFi of various factors is analyzed in more detail:
1) Why wifi doesn't work well and how to fix it. Part 1.
2) Why wifi doesn't work well and how to fix it. Part 2.
3) A small article from the Zyxel Knowledge Base: “What influences the performance of wireless Wi-Fi networks? What could be a source of interference and what are their possible causes? ”
I hope that this information will help someone. Thank.
Source: https://habr.com/ru/post/146858/
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