I have an update for the problem below.
Using Snoop spectrum anaylzer I found interference in the channel 6
range.
I thought it might be an external network so I sniffed the air and
found no network, No packets.
I then started walking around using snoop, I determined that the
source was my house and in
my garage. It is my garage door opener which I dont quite understand
as I only thought it
was a receiver for my in car transmitter. Are garage door openers
supposed to transmit?

Airhead



Wierd problem.
I bought a wrt54g today and set it up on channel 6, my laptop with a
builtin intel 2200bg wouldnt connect.
It is running XP SP1. I put the wrt54g on channel 1 and 11 and it
worked. channel 5, 6 ,7 and 8 would not work but 4 and 9 detected the
wrt54g but would not connect. I suspected the wrt54g but I have a
wap54g (that I usually run on 11) and did the same test and had the
same results with my laptop. I figured my laptop card was at fault so
I put in a oninoco card and it also had the same results. Any ideas?

Not _supposed_ to, but every computer and receiver transmits a little
on lots of different frequencies.

<William P.N. Smith> wrote in message
Goes to show you, I should of done a site survey befor I bought this
house.

On Sun, 27 Feb 2005 19:35:07 -0600, in alt.internet.wireless , "Airhead"
<campb***@alliancecable.net> wrote:

Since its only a reciever, why not shield it all round except at the side
facing the garage door. This might remove enough of the interference. Or
replace it with a newer one.

Every garage door opener receiver (including the new ones) transmits a
signal off of the receiver antenna. Many of the new ones are on 390 in
the US, but the older ones may range from around 200 to 390. There are
some (used mostly outside US) that are 433.

Shielding the antenna may reduce the interference (definetely not my
area of expertise though) but may also reduce the range from which the
door will operate from the transmitter.

Doordoc
www.DoorsAndOpeners.com

Show quote Hide quote Glad you found the RF source and it didn't turn out to be something like a
local utility doing the BPL/WIFI thing.
(I have a shotgun ready for the first WIFI transmitter I see on an utility
pole outside my house.)

Yeah, I listed garage door opens in my previous post as to what could be
causing interference in the 2.4 Ghz "junk band".
(Cordless phones, microwave ovens, fish aquariums, security systems, baby
monitors, garage door opens, you name it.)

Microwave ovens can be particulary nasty.  The CF with a microwave oven is
at 2.45 Ghz, but you'd be surprised how much SHF is escaping outside of 500
Mhz.  Out of boredom, we once looked at a microwave operating in another
room at work on a spec annie.  You can do the same thing with Netstumber,
just turn on the microwave and watch the noise floor raise.  Or, even
simplier, put a 2.4 Ghz cordless phone handset inside a microwave, close the
door, and hit the "page button" on the base unit or call it with another
phone.  It'll beep/ring with no problems.

Cheers,
-Eric

long distance non line of sight (no antenna) indoor solutions?
channel problem 5 6 7 8
win 98 wifi problem...
Unable to connect to remote computer
Total Wireless card and notebook
Primer for Connecting Laptops only to LAN
set wireless in office building.
Securing an open hotspot...
Wifi Connection Mgmt Software?
What is the type of antenna in laptop ?