I have a 'new to me' standard 53132A, S/N 3736Ax, Firmware Ver. 3703,
with a P/N 0950-2496 power supply, that I would like to add an HP Opt 010 HS
Oven OCXO reference to that consists of a 10811-60160 OCXO mounted on a
53132-60011 Osc Support Board.
I am confused about how to do this based
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 figure we can do that to about 20 ms or maybe
a little better. Apparent
On Apr 1, 2015, at 1:29 PM, Reid Oda wrote:
> As for perceiving ms-order offsets of audio events (if you're interested):
> it depends on the sound. The sharper the tick the easier it is to perceive
> a timing offset.
I use an iPhone app called "Atomic Clock". It syncs with an NTP server of your
HI
Best guess is that your antenna is not doing the job.
If the HP is in lock long enough to predict a good holdover (there are multiple
limits) you can have
holdover with no alarm. If it goes into holdover and is not “ok” by the various
limits, you will get an
alarm + holdover. After being i
albertson.ch...@gmail.com said:
> Sound travels at about 1 foot per ms. So you can effectively delay the click
> on one phone my placing it 8 feet farther away then the other phone.
> Adjust the distance until the clicks seem to occur at the same time. That
> said, I doubt your ears are sensi
On Wed, Apr 1, 2015 at 2:29 PM, Chris Albertson
wrote:
> d
Thanks for the idea of using distance to determine time offset. That's
pretty clever. :)
As for perceiving ms-order offsets of audio events (if you're interested):
it depends on the sound. The sharper the tick the easier it is to perce
On Wed, Apr 1, 2015 at 9:33 AM, Reid Oda wrote:
... Once we got this lock, the
> clocks were then synchronized to within a few ms of each other. I estimate
> 8 ms, but our method (listening to ticks from a homemade app) was not ultra
> accurate.
Sound travels at about 1 foot per ms. So you can
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 network is available. I assume i
On 1 April 2015 at 17:39, Chuck Harris wrote:
> I can't help but notice that you have several of these entries:
>
> Log 067:20150101.00:00:11: 5V is out of tolerance, value: 5.52
> Log 068:20150101.00:00:11: 15V is out of tolerance, value: 19.46
>
> I think you better look into them before anyth
if anybody from the time nuts group will be up this weekend, please email me so
I can put out the time/frequency
related items. there will also be tons of hp counter boards, and complete (but
with problems) counters, free.
hope to see you up our way this weekend, we have people coming from as fa
I can't help but notice that you have several of these entries:
Log 067:20150101.00:00:11: 5V is out of tolerance, value: 5.52
Log 068:20150101.00:00:11: 15V is out of tolerance, value: 19.46
I think you better look into them before anything else.
-Chuck Harris
Dr. David Kirkby (Kirkby Micro
Hi,
First email to the list here. I've been curious about this for a little
while: does the iPhone get sub-second timing info from GPS?
I did an experiment the other day where my friend and my iPhone clocks had
a fairly large offset, of perhaps 0.3 seconds. We were away from any
windows.
We went
Now that you mention it!
I use the app Emerald Sequoia watch that gives me time from 4 servers but it
does not change the phone time.
Seconds to one decimal place.
Raj, vu2zap
At 01/04/2015, you wrote:
>Has anyone else noticed a dramatic improvement in the accuracy of time
>of day on iPhones an
Hmm. I'd say that the time setting accuracy may have improved, but the
timekeeping accuracy still isn't wonderful.
I just checked my iPhone, using the Emerald Time app to display the
difference between iOS time and NTP time. The local time was 850 ms fast.
Then I went to Settings->General->Date
Yesterday (31st March 2015) the "GPS lock" light of my 58503A went out
and the "Holdover" light came on. The Alarm LED was *not* on. It had
been like this for an hour or more. I removed the N connector, could
see there was 5V DC on the antenna, and a visual inspection of the
antenna cable did not g
Has anyone else noticed a dramatic improvement in the accuracy of time
of day on iPhones and iPads since the release of iOS 8.2? The accuracy
used to be only plus or minus 2 or 3 seconds, now it is about 100
times better, usually a few tens of milliseconds. I figure Apple might
have finally paid s
16 matches
Mail list logo
