[time-nuts] iPhone app

Thomas A. Frank ka2cdk at cox.net
Wed Feb 17 06:37:34 UTC 2010

I don't believe that there is a 1pps available to the OS.

The GPS chipset seems to provide a very limited amount of data to the  
phone.  For example, there does not appear to be any way to get  
satellite status info from the GPS chip to the OS.  At least none of  
the apps I've tried thus far (and I've tried a fair number) provide  
anything like that.

Tom Frank

On Feb 17, 2010, at 12:23 AM, Jim Palfreyman wrote:

> Hi all,
> Having recently acquired a new iPhone with a built in GPS, I was  
> wondering
> if anyone is aware of an application that uses the GPS 1PPS to produce
> accurate time. I seem to remember reading somewhere that it is not  
> possible
> to adjust the internal clock, but one could still produce an  
> accurate time
> display based on the GPS 1 PPS and even provide time pips. Combine  
> that with
> the internal video there seems a myriad of possibilities.
> However, trying to find such applications is a large effort and I  
> was hoping
> the time-nuts community may be  aware of some time-aware cleverness  
> on the
> iPhone.
> Regards,
> Jim Palfreyman
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