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Old 07-22-2009, 12:04 PM   #26
HarryT
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Quote:
Originally Posted by jswinden View Post
Maximum power for a cellular phone is about 1/2 watt (500 milliwatts). That is nothing, especially at 800MHz through 2GHz. Commercial aircraft wiring and electronic equipment is too well shielded to show any effect from even dozens of cellular phones transmitting at the same time. And since the commercial aircraft VHF band radios are so much lower in frequency at around 130Mhz, and their long range HF radios are even lower in frequency (usually below 10MHz), there is no chance that the high frequency, low powered cellular phones will cause communication errors.
The perceived risk is to things like GPS receivers, apparently. I know that they are not "safety critical", but they are still important navigational instruments.
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