Hey Guys,
Is there an easy circuit to build that can consistently deliver a 1 PPS from a
10MHz source with excellent resolution and repeatability? My first application
is to test different 10MHz oscillators without a TIC always attached and then
compare the PPS output change over time against
In message
, paul swed
writes:
>Poul-Henning is that just the back board of the clock?
>I guess I did not realize there were actually 2 boards.
There are 3 and 2 board versions of the LED clock. Mine is the 2-board
Tom Van Baak has developed dividers based on simple PIC chips that will
produce 1 PPS from several input frequencies. These dividers have
remarkably low jitter, down in the couple-of-picosecond range, and are
very simple.
I've implemented life support circuitry around two versions of Tom's
Hi!
Try TVB's picDiv at http://www.leapsecond.com/pic/picdiv.htm
Edésio
On Wed, Jan 13, 2016 at 09:22:09AM +, Jerome Blaha wrote:
> Hey Guys,
>
> Is there an easy circuit to build that can consistently deliver a 1 PPS from
> a 10MHz source with excellent resolution and repeatability? My
Sounds like a PICDIV is just about right:
http://www.leapsecond.com/pic/picdiv.htm
Ole
On Wed, Jan 13, 2016 at 10:22 AM, Jerome Blaha
wrote:
> Hey Guys,
>
> Is there an easy circuit to build that can consistently deliver a 1 PPS
> from a 10MHz source with excellent
On Wed, January 13, 2016 8:30 am, Nick Sayer wrote:
>> No, ntpd would be getting time from the serial port, not from the
>> network socket.
>
> You're right. I may be wrong, but I would expect that either gapd or
> ser2net would want to open the serial device exclusively, which would
> spoil
Just shy of a half dozen folks have asked, so I'll post here as soon as I
finish cleaning it up. I'll put it on Github when it's ready. I just need a day
or two.
Sent from my iPhone
> On Jan 13, 2016, at 6:43 AM, Nick Sayer via time-nuts
> wrote:
>
> If anyone is
Good news - my purchase arrived quickly, contains an FE5660A 10MHz
oscillator and shows both the internal standard lock light and the internal
reference lock light within a few minutes. It runs from 13.8 volts and
takes about 1.2A.
The f1 and f2 lock lights don't come on, but that's not a big
> On Jan 12, 2016, at 4:20 PM, Chris Caudle wrote:
>
>>> On Jan 12, 2016, at 7:17 AM, Chris Caudle wrote:
>>> Can ntpd using a Thunderbolt as a time source run cooperatively with LH
>>> accessing the same Thunderbolt over ser2net? That seems like
If anyone is interested in the equivalent functionality using an ATTiny25 (for
instance, if you’re already heavily invested in AVR instead of PIC, like I am),
ping me. I’ve privately written code to solve almost the same problem and it
could easily be adapted into doing the same job.
> On Jan
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