On Mon, 2008-03-17 at 20:29 +0000, Timothy Murphy wrote: > I'm unintentionally obtuse. > What is this signal strength 98% of? 98% of the signal that it wants, the one that it received from the access point that you're interfacing with... The received radio signal power, rather obviously. It is a "wireless" LAN that you're talking about. You won't get a reading all the time, because the access point doesn't transmit all the time. It transmits in response to things accessing it, and ought to periodically transmit (broadcast) its SSID. Your reception meter is going to give you an average reading. As to how it knows what's 100% to work out a scale of values for less than 100%, that could be as simple as taking a voltage out of the receiver circuitry, knowing what the absolute maximum the circuit design is going to produce, and using that as the full scale reading. Haven't you ever used a FM radio with a signal strength meter? -- (This computer runs FC7, my others run FC4, FC5 & FC6, in case that's important to the thread.) Don't send private replies to my address, the mailbox is ignored. I read messages from the public lists.