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A comment on The hidden FM radio in your pocket and why you can't use it. Parent comment

Re:The hidden FM radio in your pocket and why you can't use it by grok2 on Friday April 17, 2015 @02:12PM (#9396107)
Is there a reason not to have that trace? And does it only prevent listening via the headset jack, but not on the phone's speakers?
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Re:The hidden FM radio in your pocket and why you can't use it by synackrst on Friday April 17, 2015 @02:16PM (#9396127)
The connection isn't needed for audio -- it's needed because the headphones / line out cable acts as the FM antenna.
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