MeSue wrote:
> Has anyone here been able to overcome the problem of microwave ovens
> interfering with the wireless signal? I even looked up the frequency of
> the micro and set my router to use the channel farthest from it, but it
> didn't help. 
> 
> I have found that if I am listening to my local library and I only need
> the microwave for a few minutes, if I start the micro at the beginning
> of the song it doesn't get interrupted. The screen might blank out for
> a while but it keeps playing. If I want to do a baked potato or
> anything long, I guess I'd have to queue up "Freebird" or
> "In-A-Gadda-Da-Vida." :-)
> 
> If it's internet radio, though... forget it.
> 
> 

Wow, lot's of postings.

No doubt it's unhealthy to be exposed to microwave radiation.  However 
unless you dropped it or torqued it (i.e. damaged it or improperly 
installed it), I doubt your are getting any more microwave related 
interference then from ovens where people are experiencing acceptable 
results with their SBs.

It's more likely it's an electrically noisy appliance. Remember you are 
essentially consuming several hundred watts powering a magnatron 
(http://en.wikipedia.org/wiki/Cavity_magnetron) or what ever that thing 
was called they smuggled out of Europe and perfected a MIT's RADAR lab 
(http://en.wikipedia.org/wiki/Radiation_Laboratory).

I would inspect the outer cover of the micro wave.  Is it metal?  Is it 
securely in place?  Does the metal cover form a continuous skin with 
little or no holes for EM radiation to leak out from?  Could it be 
better grounded?

For that matter, is your outlet you plug your microwave into (3 prong of 
course) properly wired?  You can buy an inexpensive 3 prong tester or 
check it with a AC volt meter.  You should get about 110 volt across the 
slotted holes and 110 across the smaller slotted (hot side) hole and the 
round ground hole and a negligible amount of voltage across the wide 
slotted (cold side) hole and the round ground hole. If not, forget 
everything else and fix your outlet!**

You might also try fixing your transmitter.  Just replacing the antenna 
with a better one can double the power output.

Also move things around.  Point source radiation (like the light from a 
flash light) will diminish at a rate of 1/(distance * distance).  So, 
every time you double the distance from the offending noisy appliance, 
you cut the noise by 1/4.  Conversely, every time you halve the distance 
to your wifi transmitter, you quadruple the power!

There are other things you could try (ground plain comes to mind) but 
they are beyond this mailing list (and me for the most part) :-). (I'd 
1st try a better antenna at the transmitter!)

**If you have never tested an outlet, please use one of those 
inexpensive outlet testers.  Actually I'm talking my self into getting 
one now.  How's that for an endorsement.




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