Kāpēc mana mikroviļņu aizturi manu Wi-Fi savienojumu?

Every time I start the microwave in the kitchen, our home Wi-Fi stops working and all devices lose connection with our router! The kitchen and the Wi-Fi router are in opposite ends of the apartment but devices are being used a little here and there. We’ve been annoyed by the instability of the Wi-Fi for some time and it wasn’t until recently we realized it was correlated to microwave usage.

After some testing with having the microwave on and off we could narrow down the problem to only occurring when the router is in

režīmā un izmanto iestatīto kanālu. Ja es pārietu uz

režīms vai iestatīt kanālu uz

tad vairs nav problēmu … bet tomēr!

Maršrutētājs ir Zyxel P-661HNU ("802.11n bezvadu ADSL2 + 4-port drošības vārteja" ar jaunāko programmaparatūru), un mikroviļņu krāsni izgatavo Neff ar 1000W efektu (ja šī informācija varētu būt noderīga ikvienam). Maršrutētājā ir redzams "interneta pieslēgums", un tas neatstājies, kad rodas pārtraukums, tāpēc es domāju, ka tas ir tikai iekšējs Wi-Fi jautājums.

Tagad uz saviem jautājumiem:

• Kādas Wi-Fi daļas var ietekmēt mikroviļņu izmantošana? Biežums? Traucējumi elektriskajā sistēmā?

• Kā var iestatīt

  Auto

  uz

  channels

  kaut ko mainīt? Es domāju, ka dažādi kanāli bija tikai sava veida atdalīšanas sistēma tajā pašā frekvenču spektrā?

• Vai tas varētu būt zīme, ka mikroviļņu krāsns nepareiza darbība un lēnām cepešot mūs visus mājās? Vai ir jāuztraucas?

Tā kā mēs varējām atrast maršrutētāja iestatījumus, kas labi sader ar mūsu mikroviļņu pieprasījumu pēc uzmanības, šis jautājums galvenokārt ir no ziņkārības. Bet, tā kā lielākā daļa cilvēku tur … Es vienkārši nevaru palīdzēt tam, ka man ir jāzina, kā tas ir iespējams:-)

Parasti Wi-Fi maršrutētājs rada problēmas ar citu elektroniku (piemēram, Wi-Fi traucē bērnu monitoram), nevis parasti. Kas šeit notiek?

Atbilde

SuperUser ieguldītājs Bobs sniedz ieskatu par to, kā mikroviļņu krāsns rada šādas problēmas:

802.11 (b/g/n) typically operates on the 2.4 GHz band. This is conveniently the same/very close to the band that your microwave oven emits. It’s also an ISM band, which can be freely used at low power without licence – it was originally supposed to be used for non-communication purposes, but the lack of a licence requirement makes it very attractive.

Most microwave ovens tend to be very well shielded and will not emit enough radiation[*] to interfere with wireless communications. It is possible that your unit has a damaged shield. You could look into replacing it.

A better thing to do would be to upgrade your wireless networking equipment and devices (note that many, especially older, devices are 2.4 GHz only) to be 5 GHz compatible (used with 802.11 a/n). This is the other major band WiFi networks can operate in (though 2.4 is far more common), and should not suffer interference from microwave ovens.

Addressing your [question about] different channels, microwave ovens (which should label the output frequency somewhere) should use ~2.450 GHz.

WiFi (b/g/n) channels typically range from 2.412 GHz to 2.472 GHz, with a bandwidth of 20 MHz and a 2 MHz band gap. If you pick a channel from the upper or lower end, and assuming your microwave oven is precise enough with its frequency, you could sidestep it entirely. This is, however, just a guess.

[*] I must point out that 2.4 GHz is far from ionising radiation, which is at least 2400000 GHz (the type that can harm human tissue and/or cause cancer). Even if the shield is faulty, it will not cause any harm. Any (very slight) damage would be caused by heating (and not directly by ‘radiation’), which you most definitely will feel before any real damage. Also, just don’t stand in front of it for hours a day. That always helps.

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