Mobile Phone question

May 13, 2009 8 Replies

When my mobile phone is in a strong magnetic field the coverage goes dead - why?


Because you're Hardy Spicer, and the Universe is out to get you.

Hope This Helps! Rich

Like neutron-star strong? MRI strong? Fridge magnet?

If there's an LC tuned circuit anywhere in the signal-processing chain, your magneitc field might be high enough to saturate the core of the inductor and throw the resonant frequency way off.

-- Bill Sloman, Nijmegen

LC went out with the ark. Filters are ceramic.

That still leaves ferrite beads - or rather ferrite chip inductors -; they won't do their job anything like as well if the ferrite is saturated.

-- Bill Sloman, Nijmegen

How do you know this? Describe the location? Describe the field?

Joe Leikhim K4SAT "The RFI-EMI-GUY"© "Use only Genuine Interocitor Parts" Tom Servo ;-P

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muddy ;-)

...Jim Thompson

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well, he can check his signal strength symbol on the screen.

Bermuda Triangle;

water waves

so long nimo _________

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George Bernard Shaw

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