Cell phone bleedover
#1
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Maybe some of you more tech savy folks can answer this for me.... I have always wondered why GSM phones (AT&T, T-Mobile) always bleed over into the aircraft intercoms, car stereos, and pretty much anything else electrical. Occasionally I'll even hear a Center controller transmitting with his phone bleeding over the radio. It's that "tick tick tick - tick tick tick" sound.
CDMA phones (Verizon/Alltel, Sprint) don't seem to have the issue at all.
What is up with this? It annoys me.
CDMA phones (Verizon/Alltel, Sprint) don't seem to have the issue at all.
What is up with this? It annoys me.
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#2
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If there is a difference between CDMA and GSM in this regard is due to different frequency or digital pulse patterns. Any electronic device can act as an antenna if the characteristics of the device happen to match the characteristics of the signal. GSM phones definitely seem to be able to drive interference in tuning heads or patch panels.
Analog phones or handheld VHF radios can trigger the smoke detector in CRJ200 cargo bays.
Analog phones or handheld VHF radios can trigger the smoke detector in CRJ200 cargo bays.
#5
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Really? I'll bet it's coming from something else or Wi-Fi is still turned on.
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