3 ms·
I just tested this on my iPhone XS with both an old AM radio and my SDR receiver, and neither seemed to cause any kind of signal or interference around the 930-
by geerlingguy 6y ago
I just tested this on my iPhone XS with both an old AM radio and my SDR receiver, and neither seemed to cause any kind of signal or interference around the 930-980 KHz range.
My dad, a radio engineer (who worked for one of the US' largest AM radio stations for a decade), also tested with his XR and couldn't find any signal. I'm wondering if either it is limited to the iPhone 7 and/or 8, or if the Twitter OP might have a faulty unit?
Has anyone else been able to replicate the result?
- dgellow 6y agoWhat about https://twitter.com/mehdi0x61/status/1301094353050439681 https://twitter.com/mehdi0x61/status/1301094353050439681 ? > I reproduced this on iPhone 6, 8 Plus and 11 Pro, using an H probe (only happens when playing through the speaker) > In my tests, all the 3 phones broadcast on 857 KHZ (broadcast might not be the correct technical term here though) (with picture)
- floatingatoll 6y agoRetest with the hearing aid settings enabled? https://news.ycombinator.com/item?id=24363153 https://news.ycombinator.com/item?id=24363153 To activate Hearing Aid Compatibility on an iPhone with iOS 13 or later, go to Settings > Accessibility > Hearing Devices. On these iPhone models, Hearing Aid Compatibility modifies the phone’s acoustic settings to improve compatibility with hearing aids set in "T" or telecoil mode. If you have an iPhone 6 or earlier, you can activate Hearing Aid Mode. To activate Hearing Aid Mode, go to Settings > General > Accessibility. Hearing Aid Mode reduces the transmission power of the cellular radio in the GSM 1900 MHz band, which may result in decreased 2G cellular coverage.