The battery and current time service I think is inherent to the iPhone, not necessarily whatever software is running. I've seen that a lot when doing totally unrelated BLE/iBeacon stuff. A... clever combination of…
FWIW, "shortwave radio" is a very historical name: the 1.6-30MHz range is no longer "short" in wavelength relative to even broadcast FM at 88 to 100, much less cell starting at many hundreds of MHz, much much less…
The battery and current time service I think is inherent to the iPhone, not necessarily whatever software is running. I've seen that a lot when doing totally unrelated BLE/iBeacon stuff. A... clever combination of…
FWIW, "shortwave radio" is a very historical name: the 1.6-30MHz range is no longer "short" in wavelength relative to even broadcast FM at 88 to 100, much less cell starting at many hundreds of MHz, much much less…