WIFIPERF IOS 9 FOR ANDROID
I use WiFi analyzer for android and I know there are similar apps for iOS like AirPort utility, Network Analyzer and WiFiPerf. If you truly would like to know, try doing your own site survey with something that can measure the signal in dBm (that's deci Bels in relation to milliwatts). 9 or 10 meters is a pretty good distance especially if you are going through multiple walls, even at 2.4 GHz, let alone 5GHz. If you double that frequency you've lowered the penetration by at least half and more likely by a quarter.
But the AP is only transmitting at 4 watts (Maximum). 2.5Ghz (which is just above 802.11g/n frequencies) penetrates into most things pretty well at high levels (greater than 500 Watts, like in your microwave). If there are stalls or a glass shower or tub enclosure then you add in the effect of creating a metal, glass, or stone box (shower/tub surround) around or next to your wireless device and likely between your access point and your phone.ĪPs transmit at a power level between 0 and 4 Watts. More of a restroom than a proper bathroom would imply the walls are covered by tile or plastic. Glass and porcelain reflect wireless signal. Cement, and tile and plastic absorb wireless signal. Metal tends to absorb or reflect wireless signals. Just that alone would be enough to block most of the 5GHz signal. Starting at the sub board level.More water pipes/sewer pipes (especially on a "wet" wall where multiple floors run water pipes down a single wall), Thicker sub flooring, Denser Wallboard/Lath &Plaster/Sheetrock for water resistance, Tile (especially if on the walls) and the underlying cementboard, and the porcelain fixtures.