Re: [time-nuts] Striking change in iPhone time accuracy with 8.2

2015-04-02 Thread Paul
On Wed, Apr 1, 2015 at 4:41 PM, Oz-in-DFW wrote: > The phone has to keep synch within a few microseconds of the network. > I suspect only the so-called baseband system needs to maintain any synchronization with the RF network and the "alarm" clock is only loosely coupled. I have an LTE radio in

[time-nuts] Frequency doubler 5/10 and distribution amplifier for Lucent KS-24361

2015-04-02 Thread Philip Gladstone
I'm coming late to this thread from January -- but did anybody ever make the PCBs for Gerhard's 10MHz output board? I'm interested. I just got my pair of RFTG's. Philip ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https:/

Re: [time-nuts] Striking change in iPhone time accuracy with 8.2

2015-04-02 Thread Oz-in-DFW
On 4/1/2015 2:31 PM, Paul wrote: On Wed, Apr 1, 2015 at 12:33 PM, Reid Oda wrote: This seems to imply that the iPhone does get sub-second timing info from GPS. Can anyone confirm/deny this? As of iOS N where I believe N == 5 it does the equivalent of calling ntpdate every few hours if the ne

[time-nuts] Lucent KS-24361 mystery LED resolved.

2015-04-02 Thread Luke Mester
There are two LED's on the circuit board next to the power supply module. One is green blinking. I'd never seen the other one on. I needed to get them off of my bench power supply and onto a permanent supply. I tried a 24V 3A supply. They must have been cheating a little on the ratings. The volta

Re: [time-nuts] Good references on holdover?

2015-04-02 Thread pablo alvarez
Hi Javier, As far as I understand in WR both references are synchronous. Why don't you try to track both references (or N references) simultanously? If you take care of the design, your performance should increase while locked and the transition from one reference to the other if you ever miss one

[time-nuts] audio-visual perception of time (was: Striking change in iPhone time accuracy with 8.2)

2015-04-02 Thread Attila Kinali
On Wed, 1 Apr 2015 16:11:54 -0700 Chris Albertson wrote: > The key jingle experiment is detecting a phase difference between > ears. I was writing about our ability to know if a sound is "in > time" with some other sound. For example if a bass player is keeping > time with a drummer. I figur