m.matthew.geo...@gmail.com said:
As you can see, the PPM frequency on this Pi is still showing -7.742. I
assume that is if it was undisciplined? I have wondered about that.
That's the fudge factor needed to make that box keep reasonable time.
At one level, it's the difference between the
Hi Max! Thanks for the information, I was wondering if you had documented what
you did to your Raspberry Pi so that it might be reproducible to someone like
me (a newcomer time-nut and intermediate Linux user) ... you had said:
Here is what I have been able to do with a Motorola Oncore UT+
I would also like to know how to best tweak the Raspberry Pi 2 for best
performance as an NTP server. Although I have been using Linux-based
firmware in my routers for several years now, I have never actually
worked In Linux before.
I have gone through several tutorials on compiling a custom
On 6/10/2015 5:00 AM, Hal Murray wrote:
eds_equipm...@verizon.net said:
OK, here is the actual question. Do you think it is OK to consider a pulse
which arise 250 ns early to be close enough? And no, I am not forgetting
about that 3 ns, there is about 3 ns of delay added by the output
Yes please. I could also use it.
Thanks,
David
On Jun 11, 2015, at 12:45 PM, Gerhard Wittreich gerh...@wittreich.org wrote:
Sean,
I have it (but not with me) and can send it directly to you this evening.
I will also gladly post if anyone else is interested.
Gerhard R Wittreich,
Ed, first of all, welcome to the mail list! I have been lurking here for some
time now and wanted to try an apply what I have learned about NTP to your
question. I, too, haven't posted on here before, so please forgive me if I
have quoted his question wrong, and replied incorrectly.
I
Hi
Well, take the CPLD up to 100 MHz, and feed 20 ns pulses to the TDC’s RC, drive
that into a cheap 24 bit sigma delta A/D and you have an easy 1 Fs. Do a little
processing on multiple samples and you have 15 displayed digits.
=
Of course everything past about 50 ps is just noise ….
It
Sean Gallagher sean@... writes:
Does anyone have v4.1 of the firmware for the 2100 they wouldn't mind
sending me?
With the new Heol GPS receivers on the way I would like to test it on
the different firmware versions but I can only seem to find my v3.1.
Respectfully,
Sean
