P.G. Richardson wrote: > The 20db reported in iwconfig by mac80211 is not the actual data, is the > signal strength please? I can see the signal strength change upon repeated > calls to iwconfig and downstairs even when seemingly "out of range" and > failing to ping anything, it still reports a signal strength of above 50%. Signal strength may have even less physical meaning that the power. Some devices, such as those by Broadcom, report the received signal strength with some accuracy. The RTL8187B is supposed to have such an output; however, my testing showed it to be essentially random. The only reported quantity that could be used was the automatic gain control setting of the receiver. This was calibrated against the BCM4311 at two points, assumed to be linear, and the signal strength and signal quality numbers were derived. For the RTL8187, a similar scheme was used. As you can tell, only relative values for these quantities are meaningful. The fact that your signal strength is above 50% means very little. Larry -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
