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Massive FM transmitter interference

25 August 2010 · by Steve Litchfield
Troubleshooting, Communications General, S60 3rd Edition, S60 5th Edition

Q. When driving, Why can't I use the FM transmitter in my Symbian phone while it's being charged via the cigarette lighter lead?

A. As you've no doubt found, this doesn't (currently) work. Not because the FM transmitter gets disabled in software, but because the electrical interference from the 12V charging system tends to drown out the FM transmissions themselves. Future models may have filters to minimise this effect, though.



(This original text of mine was originally published in Smartphone Essentials magazine and re-purposed here with kind permission)