5Ghz ranges have great data density but less than stellar signal propagation. 800 and 900 Mhz ranges have much better propagation, but poor data density and higher power consumption. manufacturers do not need a license to produce equipped communicating on that frequency.There are actually a few unlicensed bands, 2.4Ghz is the most popular by far as it has decent propagation and data density. That is one reason why it us used in consumer electronics so much - i.e. There is only a narrow band that is not regulated. As far as I know, pretty much all radio frequencies are controlled by governments. I believe there is also a regulation issue.
There are a few peripherals operating in the 5ghz range, but not much. (why don't they use anything higher? I mean you're in closer proximity)īecause there is ready made radio gear for the 2.4 ghz open range(s) in large quantities, making it dirt cheap. wrote:And yes wireless keyboards and mice generally use 2.4Ghz. I think I will also try to foil wrap my HDD and see it it has any affect, i.e. (why don't they use anything higher? I mean you're in closer proximity) The 2.4Ghz wave length can be interrupted by USB 3.0, I looked into it, and a study from Intel proves it.Īnd yes wireless keyboards and mice generally use 2.4Ghz. I place HDD in way that it is not in the path of wireless mouse dongle and the mouse.īased on that, I don't believe the USB hub is causing EMI.Īctually, despite the fact I read this and said "what?" she is actually correct. Again, it works fine until I connect external USB HDD. I also have another system, where I connect mouse to removable USB hub. It works just fine until I connect my external HDD to the same hub. I have (one of) my wireles mouse connected to my Monitor's built in USB hub. The most obvious answer can be that your hub(s) somehow blocks radio waves from your transmitter, destabilizing your connection.
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