AirView... AP vs Microwave oven

[skyhook]

AP vs Microwave oven report at same distance (about 3 meters) form AirView probe...

My AP on WiFi CH1
http://img21.imageshack.us/img21/5540/myap.png

My Microwave oven
http://img21.imageshack.us/img21/2906/mymicro.png

Note: in first image, max signal -70 dBm, second image... min signal -70 dBm...

[WHT]

I see that you're having those 15 dB or so anomalies every 13 MHz or so also. My AirView shows the same thing, but my WiSpy dBx shows nothing.

[skyhook]

I see that you're having those 15 dB or so anomalies every 13 MHz or so also. My AirView shows the same thing, but my WiSpy dBx shows nothing.

I m using AirView on eeePC, Windows XP. Your hardware test?

[WHT]

I've seen it on all my laptops. XP and Vista.

[skyhook]

I've seen it on all my laptops. XP and Vista.

Hi WHT,

yours laptops have all a integrated WiFi?

[WHT]

They do, but were disabled. I already thought of that last week.

I'm not sure, but I think I was seeing those peaks even after I made sure all other APs here were turned off.

I'll research this some more with a desktop PC.

[skyhook]

They do, but were disabled. I already thought of that last week.

I'm not sure, but I think I was seeing those peaks even after I made sure all other APs here were turned off.

I'll research this some more with a desktop PC.

Iye, I m sure that you have disabled it ;)
I will investigate...

[WHT]

Which WiSpy version you using?

[UBNT-Mike.Ford]

Hey Guys,

About the spurs. Yes we are aware of these but its actally coming from the USB Controllers clock. The USB clock is about 2.4Ghz.

You will aslo notice these are present on the latest WiSpi DBx dongle.

The spurs vary depending upon the USB Host Controller you have.

Thanks,

Mike

[UBNT-Ramin]

I see that you're having those 15 dB or so anomalies every 13 MHz or so also. My AirView shows the same thing, but my WiSpy dBx shows nothing.

These regularly spaced spurs have also been reported by the WiSpy users (http://www.wi-spy.com/category/content-tags/troubleshoot) as well and seem to be due to USB clock noise coming from your own PC. Some USB chipsets are noisier than others. You can see the difference when you place the AirView device at the end of a USB extension cable and run the app for a min or two.

[kxenos]

Hello, I'm newbie to wireless! Do you have a microwave oven with wireless connection?? Were can I buy one of these? I will try to connect my laptop and configure my microwave as an AP and see what happens!
:-) :-) JUST KIDDING :-) :-)
Very interesting post though, thanks

[WHT]

http://www.youtube.com/watch?v=YQ9fk3N0CKA