Wireshark-dev: Re: [Wireshark-dev] [tcpdump-workers] What's the difference between NdisMediumBa
On Sat, Apr 09, 2016 at 12:32:34AM -0700, Guy Harris wrote:
> -100 dBm is 1/10,000,000,000 milliwatts, which is .1 picowatt; I'm not a radio expert, but I suspect there might not be any radios capable of detecting that low a power level except in specialized physics or radio astronomy cases. (It's 1/10th the power consumption of an average human cell:
>
> https://en.wikipedia.org/wiki/Orders_of_magnitude_(power)#Picowatt_.2810.E2.88.9212_watt.29
>
> so it's not much power.)
The minimum sensitivity of wireless radios is -96dBm, i.e. standards compliant radios must be
able to differentiate signals better than -96 dBm from noise. Some years ago I looked at the
datasheet of an Atheros base Wifiadapter that claimed -106 dBm sensitivity.
Ciao
Jörg
--
Joerg Mayer <jmayer@xxxxxxxxx>
We are stuck with technology when what we really want is just stuff that
works. Some say that should read Microsoft instead of technology.
