Sample outputs: Link Quality=41/70 Signal level=-69 dBmĤ1/70 is is an aggregate value, and depends totally on the driver and hardware. # iwconfig wlan0 | grep -i -color quality This may be based on the level of contention or interference, the bit or frame error rate, how good the received signal is, some timing synchronization, or other hardware metric. Then enable file sharing and view that file from other devices.įrom 8 Linux Commands: To Find Out Wireless Network Speed, Signal Strength And Other Information: How do I find out wifi link quality on Linux? You could however have each device record it's signal strength periodically to a file. How to measure your Wi-Fi strength on Android devices. It appears though the average router does not track signal strength of devices attached to it. Does a router store information about the signal strength received by mobile devices that are connected to it?.This might be preferable to above method of installing nmap and using the command line.Īs for actual signal strength, that depends on your router, as this Q&A discusses: Then a webpage is presented where you see all the connected devices. You can sign on to your router through a browser by typing 192.168.1.254 into the address bar (in my case). Nmap done: 256 IP addresses (5 hosts up) scanned in 2.39 seconds Use address found and pass it to nmap network scan: $ sudo nmap -sn 192.168.1.0/24 Then use ifconfig to get the IP range for your WiFi (or Ethernet). WiFi signal strength is indicated in decibels per milliwatt (dBm), and a signal strength higher than -70 dBm is generally considered to be good enough for most basic tasks. From How to Find What Devices are Connected to Network in Linux use: sudo apt install nmap
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