/tvb wrote:
That would make a fun time experiment. One that you should do and
report back to us.
I see two experiments: one using LED flashes and one using speaker ticks.
The research has been done with audio tics. Under ideal conditions
-- fast tics (risetime 1uS, duration 10uS) mixed
Alan wrote:
An interesting point re 3 use-cases and re the vast majority of
commercial algorithms being made for telco purposes. Does that imply
that 10MHz lab-instrument feed for frequency / timing etc would
ideally have some different algorithms?
Frankly, I see no need for a lab standard
On 4/18/15 7:02 AM, Bob Camp wrote:
Hi
Many years ago while standing around (between races) with some pretty good
stopwatches, a group of us decided to see
just how well a set of people could time the same pair of start / stop events.
Our conclusion was that as a
group we could get agreement
I think the question really was How close must two visual clock
displays be to be perceived as being exactly in sync?. Some people
(but not me) can see a 1/10 second difference and to me a one second
difference is obvious. The answer is likely between 1.0 and 0.1
seconds. But if you add a tick
If anyone is interested in adding a clearer version of the 53132-60011 board on
page 13 of the CLIP for the 53132A, I have redrawn the schematic. I have the
values of all components except 4 capacitors that appear to all be the same. I
can measure them, if needed, but I will have to remove
The question implies simultaneous observation, but it could be resolved
by phase change over time.
All it requires is a means to start both second hands from the same
reference point at the same time. Once released, the error between them
will grow to something easily measured as the minutes go
Hi Joe,
You might upload them to KO4BB.com with a short note on what they are. There
is a 53132 directory there.
Regards,
Tom
- Original Message -
From: J. L. Trantham jlt...@att.net
To: 'Discussion of precise time and frequency measurement'
time-nuts@febo.com
Sent: Sunday, April
1/5th second is simply the rate at which the balance
wheel on a standard stopwatch ticks... 18000BPM.
-Chuck Harris
Jim Lux wrote:
Hence the reason that horse races are traditionally timed in 1/5th second
increments. (1/5th second is also about 1 stride for a race horse at full
gallop
3.5-4
Hi
On Apr 14, 2015, at 12:05 PM, Alan Ambrose alan.ambr...@anagram.net wrote:
Hi all,
Thanks for the interesting feedback everyone, and thanks Attila, for your
specific references - some reading ahead.
In principle, I should be able to remember all the stochastic / standard
control
Hi
On a practical basis - in a GPSDO you want to be able to “tune” the filter
(like you
tune a control loop). That involves getting at the individual coefficients.
Doing
that is not what these chips are designed to allow.
You can do the whole control loop with a $1 MCU, so it’s not a big
Attila,
From reading at the abstract, it looks interesting - bird tracking!
But essentially the same problem I'm trying to solve. I was looking for
a copy of the paper on the web as I'm not sure I want to purchase it.
Thanks,
-Bob
On 04/18/2015 04:02 PM, Attila Kinali wrote:
Moin,
On
Hi,
I don't know what you consider as listening device, but the ear has
fantastic ability
to hear slightly differentiating sounds:
http://en.wikipedia.org/wiki/Binaural_beats
On the basis of that, someone could listen time and detect even very
minor differences in sync,
far below the base
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