I was recently very bewildered since the wifi singal range on my router was still very poor even after adding a huge 9DBi antenna to it. I couldn’t understand why, but then I did some research and found some rather interesting information.
It would appear that if you use a cordless phone, you may be aware that most common cordless phones run at a frequency band of about 2.4GHz. Sound familiar?
Well, you may also be aware that both 802.11b and 802.11g wifi signals (as well as some 802.11n) both run 2.4GHz.
What a coincidence. Anyway, what that means is that if your router and cordless phone base are close together (ie less than 50cm apart), they can interfere with each other and therefore reduce signal range quite dramatically.
This was the problem I seemed to be having. So I move my router so it was about 100cm (the further the better, ideally) from the phone base, and the signal range increased hugely. It also put an end to the regular connection drops I got while using wifi.
So, a simple thought, but it really does make a difference. It’s not just cordless phones, but anything near a router that runs at a frequency of 2.4GHz or 5GHz. Bare it in mind.
Together with my 9DBi antenna, I now get fantasic wifi signal that I’m really pleased with. It made a huge difference, so definitely consider it before blaming a router or router antenna.
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