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Old August 20th 08, 04:32 AM posted to rec.radio.amateur.antenna
John Smith John Smith is offline
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First recorded activity by RadioBanter: Nov 2006
Posts: 2,915
Default Blackberry power level 4.9GHz

Joel Koltner wrote:
"Michael Coslo" wrote in message
...
While the hand feeling could easily be attributed to the battery discharge
warmth, the feeling around the ears is more difficult to ascribe to the
batteries.


Umm... many cell phones get noticeably warm over time due to internal power
dissipation. (In fact, the amount of heat generated by the battery is
negligible compared to the heat generator by, e.g., the RF power amplifiers,
the digital circuitry, etc.)

How many studies have been done looking for beneficial health outcomes from
the use of cell phones? Like wine and alcohol in moderation are now
considered to be!



The Li-Ion battery in my DV9000 HP 17" laptop are away from
processor/hard-drive/video-card (high circuity heat sources), the
battery GETS HOT all on its' own ... my cell phone is also Li-Ion so I
do think most of the heat generated is from the battery--testing to
prove all this one way or another is simply beyond my time allotments
and means to do so ... I will accept that "cell phone heat" is
explainable to battery/components/circuitry and simply is transfered, or
the "sense of heat is transfered", to body components in close proximity
.... it certainly is the MAJOR component of this "perceived heat."

Regards,
JS