Is there a way to get WiFi NOISE levels for a mobile device?
My daughter is traveling in Europe with a friend, where my daughter has the Nexus 5 while her friend has one of the newer iPhones (I don't know which one). Both have iPads also, but neither iPad (AFAIK) is picking up cellular. Both traveled with a single carryon, so, they have no PCs.
The grandparents are on dialup (they're in their 80's) but my brother in law lives next door, through thick walls, where my daughter is reading -90dBM signal strength on InSSIDer freeware (installed before InSSIDer started costing $10) for the brother-in-laws access point.
They can't connect to WiFi, and it's driving them (typical American kids) crazy. What I would like to know is the headroom over the SNR (signal to noise ratio) so I need to have them measure the noise level (at either 2.4GHz or 5GHz).
Do you know an app that provides the SNR or the noise level?
They're currently "surviving" on the fact that my daughter is on T-Mobile so the personal hotspot feature allows her (unlimited but slow 3G at best) cellular data to be shared with the AT&T iPhone and to both iPads.
My daughter called the free T-Mobile international phone number 611-equivalent (+1-505-998-3793) and they had her turn on roaming, which gave her 3G (at best) cellular data (where the T-Mobile plan is unlimited data when in Europe, but only something like 2.5GB/month in the USA).
I know less about the AT&T iPhone but the friend seems to have only an 800MB/month plan but she can't connect for cellular data for some reason, so she's glomming off my daughter's signal for the moment (until we sort this out).
I don't know the situation with the AT&T iPad, but the T-Mobile iPad only has the free 200Mb/month for life SIM card, which doesn't work in Europe, so it's a "dumb" iPad with respect to cellular data (it should work fine on WiFi though).
Since the T-Mobile Android cellular data is slow (3G at best according to T-Mobile) and has to be shared with the AT&T iPhone, I really want both of them on the next-door brother-in-law's home broadband router WiFi.
Jeff Liebermann kindly suggested the freeware WiFi Analyzer, which is as good as InSSIDer so, we have both installed now, and that tells us the signal strength in decibels (my daughter is getting -90dBm but can't connect to the WiFi access point for some reason).
The reason they can't connect is almost certainly that the signal to noise ratio doesn't give them the 10 to12 decibels they need of headroom.
But, that brings up this question because I have no idea what the noise level is at their location.
Is there a way to get WiFi NOISE levels for any of these three types of mobile devices?