Re: Ultra Wide Band?

On Mon, 22 Apr 2024 18:30:00 -0400, Alan Browne wrote:

Alan Browne <bitbucket@blackhole.com> wrote:

On 2024-04-19 16:34, Cameo wrote:

Supposedly the new iPhones have the new UWB built in, but I haven't
found it anywhere in the Setup. Anybody has?

>
As other point out, it's either on or off depending on Airplane mode.
>
UWB (in iPhones, etc.) is an Apple feature for high data rate transfers
and ranging functions.  It's sort of a "back office" function that the
user doesn't need to worry about much.
>
(To date it's not clear to me if it's actually used for data transfer in
Apple devices).
>

 That's it: how do I know UWB is on? I have a feeling Android phones show it
with little icon on the top 5 mm  of the screen the way they used to
indicate if 3G or 4G/LTE was being used. Apple likes to keep us in the
dark, sp it seems.

 I don't know about Android in this sense but I'd be very surprised.
This is a "back office" function.
 If the phone has it (see model no.) and you're not in Airplane Mode, then it is on.
 There are thousands - 10's of thousands of states in an appliance like an iPhone.  Apple don't expose many of them because: no need.

Apple originally supplied a GUI to specifically turn UWB off in the beta.
https://www.macrumors.com/how-to/disable-ultra-wideband-chip-iphone/
How to Disable the Ultra Wideband Chip in Your iPhone 11 Pro to Prevent Location Data Usage
   "A security researcher discovered that Apple's iPhone 11 Pro models
access user location data even when all apps and system services on the
*iPhone* are set to not request the data... Apple responded by explaining
that *these *iPhone** models have a U1 Ultra Wideband chip... With the
release of iOS 13.3.1, Apple is adding an option to its *iPhone* software
that allows users to turn off the UI chip entirely if they so wish.
   The new option is hidden away in settings, but you can find it by
following the steps below.
   Launch the Settings app on your *iPhone*.
Tap Privacy.
Tap Location Services.
Tap System Services at the bottom of the menu.
Toggle the Networking & Wireless switch to the grey OFF position.
A prompt will appear - tap Turn Off to confirm."
Did that UWB privacy switch never make it into the iOS release stream?