I want to track the signal to noise ratio of my WAN connection between two Tomato routers. I have found that I can retrieve the RX signal strenght with the following command: wl rssi 00:1D:7E:18:B0:80 rssi is -87 However, I can't always get the noise measurement. There is a "noise" option to the wl command, but it doesn't always display the noise level: # wl noise noise is 0 (off) If I use the "Measure" option on the "Device List" admin web page, the same command suddenly seems to work: # wl noise noise is -95 So I guess the router calculates the noise level and stores it for a while. Is there a way to run this noise measure from the command line to ensure thath the "wl noise" command returns a meaningful value? Where is Tomato getting the noise floor info when I have not run the "Measure" command?