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For the last two to
three years, several companies have been selling stickers with a
metallic golden electronic circuit like drawing as being "cellular phone antenna"
for mobile
phones. The manufacturers claim that this circuit acts as a filter
that improves RF waves to make them stronger. Is that true? That
question is one of the most difficult to answer due to the
challenges linked to testing cellular phone antenna.
Since cellular phone antenna
has to be stuck to cell phones to be functional, one can not
easily install it then remove it to see if it makes any difference
in signal strength.
Sound quality is a relatively
objective measure and the difference has to be significant for it
to be noticeable. There
have been reports of improved communications using an cellular phone antenna
but they are anecdotes. For instance, that "study",
published and funded by an anonymous person who did not reply to
my last email inquiry.
So far, I have been unable to make a satisfactory test of cellular phone antenna
which would require means beyond my reach, like having several
units of several types of cell phones, some with the cellular phone antenna
and others without, and testing them on the same network at the
same places and at the same time.
Deciphering the claims of these so-called cellular phone antenna
I am not an RF specialist but common sense helps me make the
following observations on these cellular phone antenna:
If adding such a simple sticker to just any cell phone really
improved RF performance, cell phone manufacturers would do it
themselves.
The only instructions provided with that product are to place the cellular phone antenna
under the battery, "toward the side where the fixed antenna
enters the phone". That should give place to a variety of
placement depending on the phone you use. And how about those
phones with an internal antenna that is not visible to the user?
The cellular phone antenna
isn't physically connected to the
phone.
funny enough : the cellular phone antenna's
drawing even includes an "up-side" notice with an arrow
printed in the same metallic color as the antenna itself. So do
the letters also contribute to the RF waves reformatting?
And though there’s supposedly an "up side", both sides
are actually alike - Does that mean that if you are talking on
your phone laid down on your couch with the phone upside down, the
cellular phone antenna
won't work?
Does that mean that RF waves have an up side? I doubt.
So do cellular phone signal boosters
really work? These reasons lead me to believe that these stickers
are very credible and that their performance can be verified. I
wouldn't definitely
purchase cellular phone signal booster.
Please keep in mind that this text is based solely on my own
opinion and make your own decision.
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