On 1/11/19 12:26 PM, Bob kb8tq wrote:
Hi
The most common approach to “monitor” a quartz movement is to listen to
it at 32,768 KHz with a tuned microphone. If it is an analog movement, then
one can detect the sound of the motor driving the mechanical side.
Do you need a device with a visual read
On 1/11/19 11:57 AM, Joe Hobart wrote:
I need a relatively lightweight, self powered, portable clock accurate to 1
second per month. Temperatures may range from 10 to 35 C; altitude from 1000 to
7000 feet. Although expensive, some of the marine quartz chronometers appear to
meet this requiremen
Hi all,
I got my Soekris net4501 hooked up to an oncore module and antenna and
ntpns has been talking nicely to the oncore. After a couple of hours it
started to serve NTP to a client however the time shown for the net4501 on
the NTP client is approx. 600s slow (see last line):
$ ntpq -p
rem
Hi,
Can we consider that the phase data record obtained from a Divided Frequency
source is equivalent to reducing resolution from the phase data record obtained
from the undivided source ?
In such case the “effect of data resolution” discussion from following paper:
http://www.leapsecond.com/pa
You might try a telephone pickup coil to detect the magnetic "ticks" from a
quartz clock. They even come with a plug and a suction cup!
On Fri, Jan 11, 2019 at 3:34 PM Tim Shoppa wrote:
>
> I am not an expert in every quartz clock mechanism BUT a 1-10mH nonshielded
> inductor makes an excellent
Many of the 70's/80's Japanese marine quartz chronometers had a test button
that gave you an audible beep every second.
I am not an expert in every quartz clock mechanism BUT a 1-10mH nonshielded
inductor makes an excellent pickup for the "ticks" from any quartz clock or
watch that I've ever met.
Hi
The most common approach to “monitor” a quartz movement is to listen to
it at 32,768 KHz with a tuned microphone. If it is an analog movement, then
one can detect the sound of the motor driving the mechanical side.
Do you need a device with a visual readout or are you after something that
I am wanting some general advice on the following:
I currently have among my timing-related devices a couple of Trimble
Thunderbolts (a silver one w/ the inbuilt power supply and a gold flat
one), a PRS10, and a TAPR/TICC.
My current end goal is to use these to get an idea of the quality of the
1
I need a relatively lightweight, self powered, portable clock accurate to 1
second per month. Temperatures may range from 10 to 35 C; altitude from 1000 to
7000 feet. Although expensive, some of the marine quartz chronometers appear to
meet this requirement. ~0.3 PPM.
Does anyone have any experi
Magnus, I am very sorry for speaking out of turn.
Few messages earlier you have referred to the raw PPS and I thought I might
offer an insight to what is happening inside Ublox chipset hardware that is
otherwise not know to vast majority of its users, including most members here.
I only speak up
In message <293ce126-e9ef-40a2-e742-966d638cf...@rubidium.se>, Magnus Danielson
writes:
I can add that as of this morning, "decimate" is also used for the act
of reading only every Nth email in a long thread :-)
--
Poul-Henning Kamp | UNIX since Zilog Zeus 3.20
p...@freebsd.org
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