[Ti] Airport Noise ?

[Kynan Shook]

1. The frequency is (obviously) whatever the 2.4 GHz antenna is  
picking up.  As far as I know, there are no units attached to it.
2. MacStumbler does not report a noise value from Airport Extreme  
cards.  If you want to see noise values, use Apple's Airport Client  
Monitor.  To get it, download the Airport Management Tools from:  
http://www.apple.com/support/airport/
3. Presumably, airport is having trouble staying connected to the  
network.  In my experience, this isn't common, but it undoubtedly  
depends on your operating environment.  Try running Airport Client  
Monitor on all the computers you want on the wireless network, and  
then move the base station to various locations in your house; see  
what provides the best signal for all computers.  You also should try  
adjusting the channel being used; channels 1, 6, and 11 don't overlap  
at all, but I've sometimes had luck picking a channel in the middle  
of those numbers too.

Technical note about channel overlap, for those that are curious;  
802.11 sends data over a range of frequencies, so nearby channels  
interfere with each other.  The minimum separation to avoid this  
overlap is 5 channels; since the US only allows channels 1 through  
11, most people pick either 1, 6, or 11 to maximize the number of non- 
overlapping channels available.

Daniel W Kegan <daniel at keganlaw.com> writes:
> Q1. What's the Noise in MacStumbler mean? (Frequency, spectrum,  
> English ?)
> Q2. Why AlPb get no Noise when other Macs get Noise?
> Q3. What causes menu Airport icon to wipe quasi-restart; how "fix"?