). New roads appear, old ones occasionally get
> moved.
>
> ___
> time-nuts mailing list -- time-nuts@febo.com
> To unsubscribe, go to https://www.febo.com/cgi-bin/
> mailman/listinfo/time-nuts
> and follow the instructions there.
>
--
Chris Albertson
Redon
gt; _______
> time-nuts mailing list -- time-nuts@febo.com
> To unsubscribe, go to https://www.febo.com/cgi-bin/
> mailman/listinfo/time-nuts
> and follow the instructions there.
>
--
Chris Albertson
Redondo Beach, California
___
time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.
__
> > time-nuts mailing list -- time-nuts@febo.com
> > To unsubscribe, go to https://www.febo.com/cgi-bin/
> > mailman/listinfo/time-nuts
> > and follow the instructions there.
> >
> ___
> time-nuts mailing li
ut an in-line device has to be built for each user.
--
Chris Albertson
Redondo Beach, California
___
time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.
Usually you
can start with you application and work backwards to place a
requirement on time accuracy
On the other hand this is a "time nuts" list and some people here just
want the BEST they can get.
I'm not a fan of Meinberg because of the way they market freely
available s
_
> time-nuts mailing list -- time-nuts@febo.com
> To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
> and follow the instructions there.
--
Chris Albertson
Redondo Beach, California
___
time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.
ime, it is always wrong.
>
> What am I missing here ?
>
> Thanks,
>
> Lee
> ___
> time-nuts mailing list -- time-nuts@febo.com
> To unsubscribe, go to https://www.febo.com/cgi-bin/
> mailman/listinfo/time-nuts
> and follow the instructions there
ey still don’t seem to have the hysteresis problem licked. Yes, you can
> do an oversized reference
> and take care of the issue. More or less that’s what you would have done
> 20 years ago.
>
> Bob
>
>
> >
> > Rick N6RK
>
> ____
gt; Perhaps he will do a post showing his implementation.
> ___
> time-nuts mailing list -- time-nuts@febo.com
> To unsubscribe, go to https://www.febo.com/cgi-bin/
> mailman/listinfo/time-nuts
> and follow the instructions there.
>
--
Chris Albertson
Redo
There already exists an NTP for ESP8266. At least a simple one. Look
over on GitHub.
On Sun, Jul 2, 2017 at 5:27 AM, Tim Shoppa wrote:
> I have been thinking about doing similar with an ESP8266 controller
--
Chris Albertson
Redondo Beach, Califor
02764391?hash=item3f7e59f567:g:UA8AAOSwi7RZNQDE>
I think these win the bang per buck contest.
For a buck each, these are not machined from brass, I think molded pot
metal and chromed.
--
Chris Albertson
Redondo Beach, California
___
time-nuts mailing l
_
> time-nuts mailing list -- time-nuts@febo.com
> To unsubscribe, go to https://www.febo.com/cgi-bin/
> mailman/listinfo/time-nuts
> and follow the instructions there.
>
--
Chris Albertson
Redondo Beach, California
___
time-nuts m
an "unlisted number."
>
> Thanks,
>
> Wes
>
> ___
> time-nuts mailing list -- time-nuts@febo.com
> To unsubscribe, go to https://www.febo.com/cgi-bin/m
> ailman/listinfo/time-nuts
> and f
I
> knew better, but temporarily slipped an alkaline 9V battery into a
> trouser pocket, where it was shorted by my keys and became extremely hot
> very rapidly. The peak current might reach 10 A (depending on the
> battery chemistry and how it's shorted), so the battery hea
n
> > connector you can connect a level shifter two. One port is normally the
> > Linux serial console which you can configure to be a general purpose
--
Chris Albertson
Redondo Beach, California
___
time-nuts mailing list -- time-nuts@f
;
>
> Mark Spencer
>
> m...@alignedsolutions.com
>
>
> ___
> time-nuts mailing list -- time-nuts@febo.com
> To unsubscribe, go to
https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
> and follow the instructions there.
--
seen the XT60. Thanks for the heads up - looks promising - and cheap.
>
> Brent
>
> On Thu, Jun 22, 2017 at 12:48 PM, Chris Albertson > wrote:
>
>> One of the problems of power poles is they are expensive. Not a
>> problem if you only need a few of them. I've been
go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
> and follow the instructions there.
--
Chris Albertson
Redondo Beach, California
___
time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.
mated; or just use a
> square or figure 8 knot on the cables.
>
> /tvb
>
> ___
> time-nuts mailing list -- time-nuts@febo.com
> To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
>
)
>> thanks much and 73,
>> ben, kd5byb
>> ==
>> Sent from iPad Air
>> ___
>> time-nuts mailing list -- time-nuts@febo.com
>> To unsubscribe, go to
>> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
&g
it looks to me like Olgierdhas a working INTEL linux
os running on the Pi3. He installed Wine on the Intel Linux not on
the ARM Linux
It looks like maybe Michael has an ARM version of linux running native
on the Pi3 Wine will not run on that
If you need to run Wine, you need to fist have an IN
st -- time-nuts@febo.com
> To unsubscribe, go to https://www.febo.com/cgi-bin/
> mailman/listinfo/time-nuts
> and follow the instructions there.
>
--
Chris Albertson
Redondo Beach, California
___
time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.
mes a GPS receiver will raise an "Antenna Alarm" if it does not see a
DC load but you can turn those off with a serial command
--
Chris Albertson
Redondo Beach, California
___
time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to
eedback Control of Dynamic Systems", by Franklin, Powell,
> Emami-Naeini.
--
Chris Albertson
Redondo Beach, California
___
time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.
ilter the switching noise from a
low frequency dither)
--
Chris Albertson
Redondo Beach, California
___
time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.
mal crystal will
>> become a pretty major issue.
>>
>> Simple rule of thumb - add at least two bits past whatever the target is.
>> More or less, if you *are* after 0.1C and that comes out to 6 bits, you
>> need
>> eight solid bits to get things to wor
; together.
>
Not glass walls. Stainless steel. The metal wall make it uniform.
I occurred to be that you could fill the container with a liquid.
Something that has good thermal conductivity and it would be very uniform
inside. I don't know what, transformer oil perhaps?
--
Chr
th a 5V Vref).
> ___
> time-nuts mailing list -- time-nuts@febo.com
> To unsubscribe, go to https://www.febo.com/cgi-bin/
> mailman/listinfo/time-nuts
> and follow the instructions there.
>
--
Chris Albertson
Redondo Beach, Cali
ery dichange below a limit so I'm
sampling voltage at 1Hz. Got a link to or the name of the app note?
>
>
--
Chris Albertson
Redondo Beach, California
___
time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.
nsors.
I guess one could use the crystal frequency as a measure of its temperature
to tune the system. Is there a name to Google to read up on using two
sensors and a pid-like algorithm?
--
Chris Albertson
Redondo Beach, California
___
time-nuts maili
___
> time-nuts mailing list -- time-nuts@febo.com
> To unsubscribe, go to https://www.febo.com/cgi-bin/
> mailman/listinfo/time-nuts
> and follow the instructions there.
>
--
Chris Albertson
Redondo Beach, California
_
be large
compared to the heat from a full-on heater so that the rate of change looks
slow compared to your control loop cycle.
--
Chris Albertson
Redondo Beach, California
___
time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to htt
s
>
>
>
> ___
> time-nuts mailing list -- time-nuts@febo.com
> To unsubscribe, go to https://www.febo.com/cgi-bin/m
> ailman/listinfo/time-nuts
> and follow the instructions there.
>
--
Chris Albertson
Redondo Beach, C
them.
> Ulf - SM6GXV
>
> ___
> time-nuts mailing list -- time-nuts@febo.com
> To unsubscribe, go to https://www.febo.com/cgi-bin/
> mailman/listinfo/time-nuts
> and follow the instructions there.
>
--
Chris Albertson
Redon
d follow the instructions there.
>
> ___
> time-nuts mailing list -- time-nuts@febo.com
> To unsubscribe, go to https://www.febo.com/cgi-bin/
> mailman/listinfo/time-nuts
> and follow the instructions there.
>
--
Chris Albertson
Redondo B
igh gain amplifier that was in effect counting
electrons.
On Mon, Jun 5, 2017 at 2:15 AM, Attila Kinali wrote:
> On Sun, 4 Jun 2017 22:01:45 -0700
> Chris Albertson wrote:
>
> > Voltage is proportional to the product of resistance and absolute
> > temperature. As an experime
s mailing list -- time-nuts@febo.com
> To unsubscribe, go to https://www.febo.com/cgi-bin/
> mailman/listinfo/time-nuts
> and follow the instructions there.
>
--
Chris Albertson
Redondo Beach, California
___
time-nuts mailing list --
> facts that needs altering. -- The Doctor
> ___
> time-nuts mailing list -- time-nuts@febo.com
> To unsubscribe, go to https://www.febo.com/cgi-bin/
> mailman/listinfo/time-nuts
> and follow the instructi
as the sensor.
> (discussions of TE devices too)
> ___
> time-nuts mailing list -- time-nuts@febo.com
> To unsubscribe, go to https://www.febo.com/cgi-bin/m
> ailman/listinfo/time-nuts
> and follow the instructions there.
>
--
wledge.
>
> Thanks;
>
>
> Thomas Knox
> 1-303-554-0307
> act...@hotmail.com
> ___
> time-nuts mailing list -- time-nuts@febo.com
> To unsubscribe, go to https://www.febo.com/cgi-bin/
> mailman/listinfo/time-nuts
> and follow the instructions
:
> ..., you can save a lot of grief by using a slightly larger bit than the
> standard tap drill. You're not really too concerned with optimal fit and
> strength here - it's more about being able to make a whole lot of usable
> screw holes without losing too many bits and taps
; as gasket-plane screwdriver slots, or extra tapped through-holes in line
> with the mounting holes on of the lid.
>
> Ed
> ___
> time-nuts mailing list -- time-nuts@febo.com
> To unsubscribe, go to
> https://www.febo.com/cgi-bin/mailman/list
o unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
> and follow the instructions there.
--
Chris Albertson
Redondo Beach, California
___
time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.
set, update the clock then clear the flag and repeat.
>
>
>
> On Sun, May 21, 2017 at 2:32 PM, Chris Albertson
> wrote:
>
>> To add to my last message.
>>
>> You CAN collect all the data then parse it like you are doing if you
>> were to move to an interrupt
interrupted
while the display updates so th ring buffer might get filled up a
little. But the ISR terminals the parser clears the buffer.
On Sun, May 21, 2017 at 11:20 AM, Chris Albertson
wrote:
> The problem is that you get the ENTIRE string then parse it. This is
> not going to work well
upt...but I couldn't make
> that work yesterday. More to follow.
>
> thanks much and 73,
> ben, kd5byb
> ___
> time-nuts mailing list -- time-nuts@febo.com
> To unsubscribe, go to
> https://www.febo.com/cgi-bin/mailman/listi
m
>> To unsubscribe, go to https://www.febo.com/cgi-bin/m
>> ailman/listinfo/time-nuts
>> and follow the instructions there.
>>
>>
> ___
> time-nuts mailing list -- time-nuts@febo.com
> To unsubscribe, go to https://
> time-nuts mailing list -- time-nuts@febo.com
> To unsubscribe, go to https://www.febo.com/cgi-bin/
> mailman/listinfo/time-nuts
> and follow the instructions there.
>
--
Chris Albertson
Redondo Beach, California
reassemble.
On Thu, May 18, 2017 at 5:13 PM, jimlux wrote:
> On 5/18/17 2:36 PM, Chris Albertson wrote:
>
>> It would be easy to re-design the job for cheaper machining.. Do you
>> really need to tap the holes? You might use self taping screws. Id the
>> would work then
___
> time-nuts mailing list -- time-nuts@febo.com
> To unsubscribe, go to https://www.febo.com/cgi-bin/
> mailman/listinfo/time-nuts
> and follow the instructions there.
>
--
Chris Albertson
Redondo Beach, California
__
ld do the work a bit cheaper?
>
> If not I'll give it a try myself.
>
> Please contact me off list.
>
> Thanks!
>
> Corby Dawson
>
> ___
> time-nuts mailing list -- time-nuts@febo.com
> To unsubscribe, go to https://ww
!
> >
> > Corby Dawson
> >
> > ___
> > time-nuts mailing list -- time-nuts@febo.com
> > To unsubscribe, go to https://www.febo.com/cgi-bin/
> > mailman/listinfo/time-nuts
> > and follow the instructions there
On Mon, May 15, 2017 at 1:49 PM, Ben Hall wrote:
> Hi Chris and list,
>
> On 5/15/2017 1:22 AM, Chris Albertson wrote:
>
>> Are you still going for Sidereal time? If so that is floating point
>>
>
> I'm not sure how Sidereal time came up...it wasn't
ith both Arduino and
mbed.
On Mon, May 15, 2017 at 1:49 PM, Ben Hall wrote:
> Hi Chris and list,
>
> On 5/15/2017 1:22 AM, Chris Albertson wrote:
>
>> Are you still going for Sidereal time? If so that is floating point
>>
>
> I'm not sure how Sidereal tim
order one of those $10 Saleae
>> clones this evening. That Saleae clone analyzer would be just the ticket
>> to see if the time information is coming from the serial port before the
>> 1PPS tick. This is what is written in the little TruePosition information
>> we
NMEA...but output their own format of message. One
> message contains GPS time in seconds...plus the number of leap seconds that
> have elapsed, so my goal there was to convert the GPS time from the unit
> into normal UTC date and time.
>
> On 5/14/2017 12:38 PM, Chris Albertson wro
s. So depending on how accurate you need
to be this can use a LOT of 64-bit floating point math.
--
Chris Albertson
Redondo Beach, California
___
time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/li
hmetic (long longs) opens up a whole new can of
> worms.
> ___
> time-nuts mailing list -- time-nuts@febo.com
> To unsubscribe, go to https://www.febo.com/cgi-bin/
> mailman/listinfo/time-nuts
> and follow th
gt; > The display (VFD) is a bit dim and blotchy.
> > Does anybody have a replacement display that would look better?
> > - Mark
> --
> Sent from iPad Air
> ___
> time-nuts mailing list -- time-nuts
e Linux package. It’s a fairly obvious name. I’d
> bet it got
> re-used a couple of times. The docs on gpsd refer to it’s own tangled
> history in this
> regard. It’s certainly worth trying. I simply would not chuck the GPSDO
> in the trash
> if it does not work :)
>
> Bob
>
list -- time-nuts@febo.com
> To unsubscribe, go to https://www.febo.com/cgi-bin/
> mailman/listinfo/time-nuts
> and follow the instructions there.
>
--
Chris Albertson
Redondo Beach, California
___
time-nuts mailing list -- time-nuts@febo.co
I mill plates such as these is I surface a piece of
> scrap and then glue (using superglue) the stock down onto the scrap. I can
> then machine around the edges without worrying about clamping. With
> pockets though, the torque even when ramping down might break the part
> loose.
>
> >> --
> >> Best wishes,
> >>
> >> Larry McDavid W6FUB
> >> Anaheim, California (SE of Los Angeles, near Disneyland)
> > ___
> > time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to
>
On Mon, Apr 24, 2017 at 10:13 AM, Bob kb8tq wrote:
> Hi
>
> Some of the process below is “not trivial”. One example:
>
> You have a “gate” from the GPSDO and a “signal” from somewhere else. If you
> want the STM to do the whole thing, the “gate” pin needs to get the job
> done in
> X +/- 1 cycle
can serve a web page and then you see the frequency on
your phone.
Chris Albertson
Redondo Beach, California
___
time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.
read some registers and
> control
> > the user interface.
> >
> > The time stamping idea is not bad. But today you do NOT need to "post
> > process". Your little processor could do this in nearly real-time and
> > you'd have results on the screen i
-time and
you'd have results on the screen in seconds.
--
Chris Albertson
Redondo Beach, California
___
time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.
hanler
> dot com. This is for my own non-commercial use.
>
> Thanks!
>
> Jerry
> ___
> time-nuts mailing list -- time-nuts@febo.com
> To unsubscribe, go to https://www.febo.com/cgi-bin/
> mailman/listinfo/time-nuts
> and follow the instructions there.
to https://www.febo.com/cgi-bin/
> mailman/listinfo/time-nuts
> and follow the instructions there.
>
--
Chris Albertson
Redondo Beach, California
___
time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.
e there?
What I live the clocks always gain time, a minute every could mounts.
It seems I always have to set the time back a minute or two. But then
it really never gets cold here, maybe a dip below 50F at night in the
winter
--
Chris Albertson
Redondo B
; good sign when your clock changes by 2e-11 (that's more than 1 ns per
> minute) just because of ambient pressure changes.
>
--
Chris Albertson
Redondo Beach, California
___
time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go t
gt; >> [2] I presume at a minimum a counter running at a 5ns or less "tick" fed
> >> from a frequency source locked to the 10MHz of the Rb standard. This
> >> counter would need to be latched for reading from an external signal so
> &
> -
>
> > Did you use the Arduino's PWM output plus a LPF for the DAC, or a
> separate
> DAC? If PWM, did you have problems with noise or sensitivity to the
> USB-provided supply voltage?
> ___
> time-nuts mailing
20 Mar 2017 15:19:25 -0700
> Chris Albertson wrote:
>
> > I've only hear of 1 uS being broken with hardware.
>
> A Raspberry Pi can get down to a Standard Deviation of about 350 nano
> seconds
> using NTPsec..
>
> https://blog.ntpsec
with hardware.You would actually
not ned to write much software to make this happen, just move the
counter outside the CPU to the FPGA and you about have it.
Chris Albertson
Redondo Beach, California
___
time-nuts mailing list -- time-nuts@febo.com
To
> AndroiTS GPS Test (V 1.48 Free) is good, but a battery hog I find. On
> my Moto G, I find that it can handle not only the US GPS system, but
> three other systems too, including Glonass, and I think the new Chinese
> system. I don't recognise the last symbol, maybe Galileo. Not bad for
> a co
> Not to gloat, but my Android phone is always spot on. I have a GPS time
> app that shows the difference between GPS and phone time and it's always in
> the tenths of a second area.
"tenths of a second" is "spot on"? No way. That is a difference
that is perceivable to humans.
Apple claims i
ctions there.
>
> ___
> time-nuts mailing list -- time-nuts@febo.com
> To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
> and follow the instructions there.
--
Chris Albertson
Redondo Beach, California
__
ccumulate to some unknown degree. Any
> thoughts on this?
>
> Mike Baker
> *
> ___
> time-nuts mailing list -- time-nuts@febo.com
> To unsubscribe, go to
> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
> a
say $50 for everything from antenna to power cord. I think
it can be done but one can only verify longer term stability.
(Yes you were correct a GOOD oversized XO is not sensitive to the
environment. But notice the above budget.)
--
Chris Albertson
Redondo Beach,
more known-good
oscillators and you can measure beat frequencies between them.
On Tue, Mar 14, 2017 at 3:33 PM, Tim Lister wrote:
> On Fri, Mar 10, 2017 at 2:35 PM, Chris Albertson
> wrote:
>> A GPSDO is not hard to make. All you need is some way to compare the
>> phase of two sig
o.com
> time-nuts is a low volume, high SNR list for the discussion of precise time
> and frequency measurement and related topics. To see the collection of prior
> postings to ...
>
>
>
>>> and follow the instructions there.
>>
>> _____
GPSDO in solid operational condition, kindly
>>> contact me off list. Thanks!
>>>
>>> 73/jeff/ac0c
>>> www.ac0c.com
>>> alpha-charlie-zero-charlie
> _______
> time-nuts mailing list -- time-nuts@febo.com
> To unsubscribe, go to https:/
est design itself.
>
> Thanks in advance!!
> ---
> Rhoderick Beery
> direct: 402-817-9363
> ___
> time-nuts mailing list -- time-nuts@febo.com
> To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nut
56 64 377 46.0892.220 2.535
> -129.250.35.250 249.224.99.213 2 u 169 64 214 42.499 -3.015
> 12.507
> -213.130.44.252 145.238.203.14 2 u 487 64 200 37.210 -0.725
> 13.232
>
> 73,
> David GM8ARV
> --
> SatSignal Software - Quality software written to
ink my main point is correct: what you care about in
the uncertainty in the process, not the numbers like delay and offset,
it's the error bars in those numbers
On Sat, Feb 18, 2017 at 9:14 AM, Chris Albertson
wrote:
> You are plotting "offset". This is simply the communications pa
unted as high, still 10' or so is common without guy wires.
>
> Thanks.
>
> Michael
>
> ___
> time-nuts mailing list -- time-nuts@febo.com
> To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
> and follow the instructions there.
--
of a real-time process running on that one computer. In
this special case it makes sense to connect GPS PPS to the computer
and use no other source of time.
On Thu, Feb 16, 2017 at 10:58 AM, Gary E. Miller wrote:
> Yo Chris!
>
> On Wed, 15 Feb 2017 23:48:39 -0800
> Chris Albertso
barrier is not easy
On Thu, Feb 16, 2017 at 9:59 AM, shouldbe q931 wrote:
> On Thu, Feb 16, 2017 at 7:55 AM, Chris Albertson
> wrote:
>>
>> But PTP requires special hardware. You may not have this.
>>
>
> I have to disagree.
>
> I run PTP on a Raspberry Pi
to do
BTW I first learned about NTP formerly this same reason. I was
writing firmware for an astronomical CCD camera and we wanted to know
EXACTLY when exposures started and stopped.
On Wed, Feb 15, 2017 at 7:09 PM, MLewis wrote:
> On 15/02/2017 1:17 PM, Chris Albertson wrote:
>>
&
On Wed, Feb 15, 2017 at 11:48 PM, Chris Albertson
wrote:
> On Wed, Feb 15, 2017 at 10:30 PM, Ruslan Nabioullin
> wrote:
>> On 02/15/2017 01:17 PM, Chris Albertson wrote:
>>>
>>> Why set up a dedicated NTP server if you only have two computers
>>> that will
at least three servers (and more like five). When
> given only two
> servers NTP simply dithers back and forth between them. It does not have
> a way to figure out which of two clocks is wrong. It will detect a missing
> clock, but
> not one that is simply off time by a bit.
>
an keep backups or store media files (videos) or
host a small web site NTP is almost zero load on the CPU and the
best thing is the NTP accuracy is not effected by CPU load SO you can
run other service without degrading the NTP server. (All the time
critical stuff happens inside a tiny interrup
PCs that all agree on what the time is. The
outliers tent to get ignored. When GPS comes back up the system makes a
gradual and graceful recovery.
Chris Albertson
Redondo Beach, California
___
time-nuts mailing list -- time-nuts@febo.com
To unsub
istinfo/time-nuts
> > and follow the instructions there.
>
> ___
> time-nuts mailing list -- time-nuts@febo.com
> To unsubscribe, go to https://www.febo.com/cgi-bin/
> mailman/listinfo/time-nuts
> and follow the instructions there.
&
SS receiver).
>
> Thanks in advance,
> Ruslan
> ___
> time-nuts mailing list -- time-nuts@febo.com
> To unsubscribe, go to https://www.febo.com/cgi-bin/m
> ailman/listinfo/time-nuts
> and follow the instructions
how those worked. I just wish
> I could find the one hidden in my garage :^)
>
> Dan
>
> ___
> time-nuts mailing list -- time-nuts@febo.com
> To unsubscribe, go to https://www.febo.com/cgi-bin/m
> ailman/listinfo/
; but a really low-end
computer like a Rasperry Pi would be perfect for this, maybe over kill but
you'd want the features of the OS to send the time some place
--
Chris Albertson
Redondo Beach, California
___
time-nuts mailing list -- time-nuts@febo
et on with it
> ___
> time-nuts mailing list -- time-nuts@febo.com
> To unsubscribe, go to https://www.febo.com/cgi-bin/
> mailman/listinfo/time-nuts
> and follow the instructions there.
>
--
Chris Albertson
Redondo Beach, Cal
_
> time-nuts mailing list -- time-nuts@febo.com
> To unsubscribe, go to https://www.febo.com/cgi-bin/
> mailman/listinfo/time-nuts
> and follow the instructions there.
>
--
Chris Albertson
Redondo Beach, California
1 - 100 of 1801 matches
Mail list logo
