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Telecom Network for Professionals and Users
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How does how voltage electrical transformer effect Wi-FiViews: 1781
Jul 11, 2007 6:28 pmHow does how voltage electrical transformer effect Wi-Fi#

Ray Saugaato
Hi Guys,

After long time, I am back to the network.

I have a question from Wi-Fi users, both indoor and outdoor.

WHAT IS THE EFFECT OF HIGH VOLTAGE TRANSFORMER ON WI-FI QoS?

I will be glad to read real techie answers.

Regards,
Ray
ray@satmac.com

Private Reply to Ray Saugaato

Jul 18, 2007 1:12 pmre: How does how voltage electrical transformer effect Wi-Fi#

John T
I'm sure if you directly connnect your WiFi device to one you'll probably see sparks, smoke and flames...that will definately have a negetive effect on WiFi QoS.

Private Reply to John T

Jul 19, 2007 3:16 amre: re: How does how voltage electrical transformer effect Wi-Fi#

Ray Saugaato
Thanks for such a lovely reply in this dull and mundane network....
HaHa

Private Reply to Ray Saugaato

Jul 20, 2007 8:14 amre: re: re: How does how voltage electrical transformer effect Wi-Fi#

Dave Porteous
Great answer John!
But without wishing to sound dull and mundane here's my personal techie view. WiFi networks run in the 2.4 GHz and 5 GHz range. Any interference from an AC source will be in the 50 (or 60) Hz range. From my old radio days I think you also need to consider further intermodulation products of the source interference i.e. 100(120), 150(180), 200(240), 250(300) etc Hz. As I recall each subsequent intermod product is 3 dB lower (or half the power of) than the previous product and so very quickly higher order products become effectively background noise. Therefore if the source is a very low frequency I doubt very much whether it would have any interference impact on WiFi operating in the GHz range.
What might have an impact is HV electrical switching equipment which is capable of producing high frequency noise during a switching cycle, but again it's probably not a big deal and I think the WiFi unit would need to be very close to the source, which might give you the same result as John described :-)
Now if there's someone out there with a good RF background who can corect me I'll be happy to learn from you.
All the best,
Dave.

Private Reply to Dave Porteous

Jul 20, 2007 9:37 amre: re: re: re: How does how voltage electrical transformer effect Wi-Fi#

Gurvinder Singh Bindra
From all that I gather here, all seem to agree with the fact that EMF radiation from an electrical transformer WILL NOT AFFECT the transmission (and thereby QoS) of a 2.4Ghz Wifi Router.
Would it be prudent if asked you where this question is coming from ? Maybe I can help is i have a better view of the background.
Warm Regards
Gurvinder

Private Reply to Gurvinder Singh Bindra

Jul 30, 2007 4:26 pmre: re: re: re: re: How does how voltage electrical transformer effect Wi-Fi#

John T
Just to add a little more insight....
We had our WiFi access point "strategically" located in our coffee break room near the microwave oven.
Everytime our admin, had microwaved some popcorn, she noticed that the wifi connection went out.
Of course being the good samaritans that we were, we notified her that the popcorn had "special properties" that blocks wifi transmission, so in preparation prior to making popcorn, she would turn up the aircon and open all the windows.
We thought this was quite funny until we got our utility bill. :-0

Private Reply to John T

Aug 03, 2007 7:36 amre: re: re: re: re: re: How does how voltage electrical transformer effect Wi-Fi#

Dave Porteous
John,
That is an excellent story! Love it! And I guess it proves that WiFi is indeed subject to RF interference. That would be the "microwaves" from the oven. The thing that disturbs me is they're not supposed to escape the oven enclosure - you might want to check out the RF levels on that!
Cheers,
Dave.

Private Reply to Dave Porteous

Aug 06, 2007 9:30 amre: re: re: re: re: re: re: How does how voltage electrical transformer effect Wi-Fi#

Gurvinder Singh Bindra
Hi John! ( I REALLY had to fight agaist my own self to say a Hi! instead of Dear! ) ;-)

Ok..
First of all, Jokes aside, THIS IS SERIOUS !
If microwave radiation is leaking from your microwave it is a DEFINITE health hazard ! Since you didnt originally pose the question, I have to say I am still stumped about his query and the reason behind it but you DEFINITELY need to get a new oven.

To explain the reason here, Microwaves ALSO use 2.4 Ghz bandwdith / frequency range for COOKING stuff ! . Now if a laptop / router near the oven is getting affected , that means the radiation leaking out is suffcient to atleast corrupt the router's signal. In my personal experience, the strength of that leak, is enough to affect ATLEAST the fertility of males who may be around that microwave at the time of operations.
While this may sound funny, here are some links to back that up...

http://www.safewireless.org/SWIMemberContent/CellPhones/tabid/191/ctl/ArticleView/mid/466/articleId/210/Default.aspx



http://www.hps.org/hpspublications/articles/microwaveovens.html

http://www.osti.gov/energycitations/product.biblio.jsp?osti_id=5679062

Would seriously recommend that you get your microwave tested. You can try this software on a laptop to test its efficasy..

http://www.netstumbler.com/downloads


Hope this helps...

Warm regards
Gurvinder

Private Reply to Gurvinder Singh Bindra

Aug 17, 2007 8:36 pmre: re: re: re: re: re: re: re: How does how voltage electrical transformer effect Wi-Fi#

John T
Thanks for the data!
We've since purchased a new "micro", we've also issued to our male staff wire mesh "boxers shorts"....many have commented on an unusual cooling effect!

Private Reply to John T

Aug 18, 2007 1:41 amre: re: re: re: re: re: re: re: re: How does how voltage electrical transformer effect Wi-Fi#

Gurvinder Singh Bindra
Hi!
Glad you took my info seriously. Just that the wire mesh boxer shorts could be too extreme..Unless of course you have ladies there into chainmail and leather ! ;-)

Regards
Gurvinder ! :-)

Private Reply to Gurvinder Singh Bindra

Aug 21, 2007 2:38 amre: re: How does how voltage electrical transformer effect Wi-Fi#

mark adams
Hey John. It has been a while for me but IIIIIMMMMMMMMMMMMMm BACCCCCKKKKKKKKKKK :):):):)

I missed this network. I have been busy with many things. I have just put together a blog and some finetuning for Internet marketing of services. lets shake things up around here with some interesting posts. I will start a new thread here tonight. :)

Mark Adams


Total Business Solutions Communication

Telecommunication Conultant

http://tele456com.ld.net


http://geoquote.net/index.cfm?cogid=tele456com

http://www.shopforethernet.com/?Cogid=tele456com

Private Reply to mark adams

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