Re: [opensuse] How to Diagnose Wireless

On Monday 09 June 2008 03:06, Daniel Bauer wrote:
On Sunday 08 June 2008 20:40:16, Kai Ponte wrote:
I'm very frustrated with the Wireless I get on my laptops.

I have - for example - a fairly new laptop with an Intel 3945 ABG Wifi
configured at wlan0.

It mostly works.

Every once in awhile it just won't connect to my access point.

Hello Kay,

I guess I have the same problem. I filed a bug here:
https://bugzilla.novell.com/show_bug.cgi?id=398135

(I have not yet tried the driver-update supposed this morning, as I just
woke up :-) If it helps, I'll post to that bugs page )

regards

Daniel


I am a (retired) RF engineer. While it is not common for local signals,
either intentional or not, to jam wireless short-range communications
channels, it is not impossible. In the United States, all unlicensed
communications devices must carry a notice to the effect that they
may not interfere with licensed channels, and must accept interference
from them. In this country, all licensed transmitters are
required to pass stringent tests for suppression of harmonic energy,
and are required not to produce any spurious radiation at all.
However, it is not impossible for a transmitter, or even a close-by
receiver, to have a failure which produces a signal on a frequency
that it is not supposed to.

There are situations where a transmitter may go into a mode where
it generates a whole band of spurious frequencies. I have been
instrumental at tracking down at least one of these. Since the
transmitter may only operate under certain defined conditions,
that might explain the fact that your wireless setup only fails
once in a while.

If the wirelss setup only fails at a particular time of the day or the week,
it might be worthwhile to notify the local governmental radio-frequency
authorities--FCC in the US--and have them investigate. Radio is
regulated in all parts of the world.

One other (unlikely) possibilty: a severely arcing power line very near
your computer system. If that's the case, you would hear it on your
AM radio. Usually that sort of interference dies away very rapidly with
frequency and distance, so it is probably not your problem.

Second (not very likely) possibility, which you could also hear on an
AM radio: something in your house, like a thermostat, is causing
interference. If you hear some bad static on an AM radio, take a little
portable around the house and see if you can find the strongest
noise. Then call the serviceman.

--doug, wa2say (ham call)

Blessed are the peacemakers ... for they shall be shot at from both sides.
--A.M. Greeley
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