What is the capacity (range) Wi-Fi signal on PC motherboards?

Hello.
On modern motherboards regularly meets built-in Wi-Fi module.
I'm a little confused by the presence of the antennas in the kit.
On this basis, the question arose, how powerful (in range) is the signal of such modules without the use of additional complete antenna?
Is it power Wi-Fi signal laptop or phone?
Unfortunately, information on the Internet could not find.
Thank you
March 19th 20 at 09:24
4 answers
March 19th 20 at 09:26
Solution
Well, firstly in notebook adapters still have the antenna. Yes just built into the lid of the laptop.
On the embedded motherboard, divorced onboard antennas no. And catch without them and I don't expect that to be even a metre.
An outdoor antenna to the motherboard in order that the system unit by default is in recess computer Desk where the radio waves penetrate much worse + the motherboard is in a metal case of the system unit, which further suppresses the signal. So equipped with remote antennae, and selecting the alternative antenna, you can change the power and range.
March 19th 20 at 09:28
On this basis, the question arose, how powerful (in range) is the signal of such modules without the use of additional complete antenna?

If there is an internal antenna on the PCB divorced, so it is necessary to watch their performance.
If internal, no signal with no antennas.
There is no such thing as distance, it depends on a heap of conditions, distances, obstacles, clarity of Fresnel zone, receiving antenna, etc. From millimeters to hundreds of kilometers.
March 19th 20 at 09:30
and how do you search? it all depends on the module installed, see the specification on the motherboard, see the name of the wifi adapter, Google its specification and look at him radiated power and sensitivity. Power and range are not the same concept in this case, having a large capacity can be far from "to beat" but does not hear because the sensitivity is not enough. Usually the sensitivity of the standard to -80Дбм, but it is possible to raise by the antennas, it is possible to buy separately a large antenna and could listen to the whole district.
Is it power Wi-Fi signal laptop or phone?
Usually all the equipment certifitsirovana and their power is limited to 100mW, but the sensitivity of the internal antenna may be different on this if there is a better opportunity to tie the external if the quality of the connection is not enough. - kelton_Leann commented on March 19th 20 at 09:33
March 19th 20 at 09:32
About 50 meters almost like a laptop and smartphone.
Thanks for the reply.
A specific number wasn't so important.
More important is the comparison with the abilities of the laptop/phone. - Maryjane_Simonis commented on March 19th 20 at 09:35

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