It would be an easy experiment to get two analog clocks and put them
side by side. You would not even have to set them to the "true" time,
just to each other. Let one run slower and wait until you can see a
difference.
Clocks on a computer screen are different because the screen is
refreshed one
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.
In each case output a main and a delayed pulse. Try it yourself, and with a
number of friends.
The goal is to find at what level people ca
The SiLabs part only supports loop filter time constants down to 60Hz. GPS
loop filters usually use values in the 100's to 1000's of seconds.
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Hello, Netizens !
I am wandering what is the average human ability to visually compare two
clocks ? Let say I have XClock application running on one machine
(stratum 1 NTP) and I have my project clock close by. And I would like
to match the reading. If I'll see the difference, which range it
Hi all,
Has anyone experimented with the Rakon OCXO unit (STP2777ALF on a small board)
that was on eBay for a while (seller: dasherdeals)? Just now as I was going to
get a link to post, I discovered they have sold out of these units...
I got one this week. There was little information available
Thanks to everyone for all the great replies. I figured that the 10 MHz
output would have a fair bit of jitter/phase noise, but I figured I could
use something like a SiLabs Si5317 to clean it up, as per this app note:
https://www.silabs.com/Support%20Documents/TechnicalDocs/AN513.pdf
Page 4 o
Re LEA-M8F
>>> The main thing is that there is a lot of jitter at 10MHz (much less at
>>> 8MHz) so you need to phase lock another oscillator to it.
Yes, as they've got most of the guts of a basic GPSDO in there with a VCTCXO -
but it seems they missed the boat in making the divisor for 10MHz
Win Hill has been working on the 3rd edition for literally decades. I used
to exchange E-mails with him back in the 90's when the 3rd edition was
always "around the corner". Glad to see it has arrived!
My 2nd edition is very well-worn. Bought it in 1990. 25 years!!!
Tim N3QE
On Fri, Apr 17, 2015
Hi all,
some additional info about the generation of the timepulse: in u-blox 7
and 8, the timepulse is generated from the internal 48MHz clock. So you
will see a lot of jitter if you configure it to 10MHz.
A 8MHz it's better, but since the internal 48MHz clock is not
disciplined (It's derived fr
So in the interest of not belaboring "[time-nuts]' with a long discussion
of AOE that may border on "off topic", or at least not enough "on topic",
I'll follow up my last post by noting that I went to amazon and read
through several of the (very) thorough reviews, and many of my
points/questions fr
+1. I'll probably buy a copy anyway (not that I need it so much anymore),
but I'd like to know what has changed, what you think has improved, what
you think has been missed, etc.
The 2nd edition was fantastic, but so much of the EE world has changed I
think it would be hard to cover it as well as
What's been added? This is a brilliant book, but I need to know what the
updates are!
Jim
On 17 April 2015 at 18:12, Poul-Henning Kamp wrote:
>
> In message <20150417074427.ga31...@sol.ermione.com>, Andrea Baldoni
> writes:
>
> >Hello.
> >In the case someone missed the new, after year
In message <20150417074427.ga31...@sol.ermione.com>, Andrea Baldoni writes:
>Hello.
>In the case someone missed the new, after years of waiting, the third edition
>of the book in the subject is out!
I received it last week, and yes, it's absolutely worth the money.
--
Poul-Henning Kam
Hello.
In the case someone missed the new, after years of waiting, the third edition
of the book in the subject is out!
I'm a true fan of the second edition and I'm sure I will not be disappointed
by the new one; I should receive it in the beginning of the next week so if
someone is interested in
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