> 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. Good to know. With a repeater in the living room now, I have 100/100 signal strength and fewer problems with connectivity. Not perfect I think due to the position of the router. Still network connectivity improving. Thanks for the info. PGR -- Laws are partly formed for the sake of good men, in order to instruct them how they may live on friendly terms with one another, and partly for the sake of those who refuse to be instructed, whose spirit cannot be subdued, or softened, or hindered from plunging into evil. [The Laws, Plato] You fiend! Never have I encountered such corrupt and foul-minded perversity? Have you ever considered a career in the church? Bishop of Bath and Wells (Blackadder II) -- 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
