From: Adam Kumiszcza
It will be connected via a short cable (1,5 m or less) to one computer. The
second will join much later, I will worry about splitting the signal then.
Other computers would be in different rooms, so I would need another time
source.
My question was rather if stacking another
On Wed, Sep 25, 2019 at 8:01 PM David J Taylor via time-nuts <
time-nuts@lists.febo.com> wrote:
> From: Adam Kumiszcza
>
> Hi again!
>
> My raspi is now in a new location. The GPS signal is fine, the window is
> not south-facing, but the antenna is outside the window attached to a metal
>
From: Adam Kumiszcza
Hi again!
My raspi is now in a new location. The GPS signal is fine, the window is
not south-facing, but the antenna is outside the window attached to a metal
windowsill, and there are no buildings nearby.
I'm coming back to the idea of distributing PPS signal. Do you think
On Thu, Aug 8, 2019 at 7:00 PM David J Taylor via time-nuts <
time-nuts@lists.febo.com> wrote:
> Hi everybody! My first post here, I hope the subject is adequate for this
> mailing list.
>
> I'm using a tiny layer 1 NTP server consisting of Raspberry Pi 3B+ with
> Ublox MAX-M8Q expansion board
Adam Kumiszcza writes:
> After all your tips I just checked whether the roof itself blocks the
> signal or not. I put the patch antenna together with a metal disk on top of
> a high wardrobe, close to ceiling, and I guess it is the best position
> here. See attached screenshots.
Good, that looks
From: Adam Kumiszcza
[]
I didn't have to stick to "good enough", David :)
Unfortunately, I will have to move this ntp server to another location (or
make another one and leave this one here). It will not have access to south
facing window there, only west is possible.
Best regards,
Adam
On Mon, Aug 12, 2019 at 10:14 PM Achim Gratz wrote:
> Adam Kumiszcza writes:
> > I've made a ca. 10.5 cm metal disc cut from an old car radio chasis and
> put
> > it under my gps antenna. It does not hang now, but lays on the window
> sill,
> > facing up.
>
> That way you changed three variables
Adam Kumiszcza writes:
> I've made a ca. 10.5 cm metal disc cut from an old car radio chasis and put
> it under my gps antenna. It does not hang now, but lays on the window sill,
> facing up.
That way you changed three variables in one go. You'd be better off
changing one single thing each time
From: Adam Kumiszcza
[]
If I take into account single high elevation satellite with good SNR
(satellite 26 in the examples), the new placement and ground plane even
lowered it :(
I guess the real benefit of the ground plane would be if the antenna was
outside, or my measurement method was wrong?
On Sun, Aug 11, 2019 at 8:01 PM Achim Gratz wrote:
> Adam Kumiszcza writes:
> >> The key here is to have some conducting magnetic material under the
> >> antenna, not just sitting on its own.
> >
> > My GPS antenna hangs on the window handle and still gives the good
> result.
> > It's on the
You already have a PPS signal from your existing GPS, so I was thinking
simply of distributing that the the Windows PCs, and feeding it to the
serial port's DCD signal.
I will try that. I guess you can connect serial port directly to my
Uputronics expansion card (
Adam Kumiszcza writes:
>> The key here is to have some conducting magnetic material under the
>> antenna, not just sitting on its own.
>
> My GPS antenna hangs on the window handle and still gives the good result.
> It's on the south facing window. Unfortunately, in the new location I will
> have
From: Didier Juges
It is my understanding that the latest version of the RPi (Pi4) has a
native full speed Ethernet interface, not through USB.
I also read that it needs a heat sink.
Didier KO4BB
Didier,
It actually has a gigabit Ethernet, not connected
On Fri, Aug 9, 2019 at 6:04 PM David J Taylor via time-nuts <
time-nuts@lists.febo.com> wrote:
> You already have a PPS signal from your existing GPS, so I was thinking
> simply of distributing that the the Windows PCs, and feeding it to the
> serial port's DCD signal.
>
I will try that. I guess
>
>
> It is my understanding that the latest version of the RPi (Pi4) has a
native full speed Ethernet interface, not through USB.
I also read that it needs a heat sink.
Didier KO4BB
>
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On Fri, Aug 9, 2019 at 1:01 PM shouldbe q931 wrote:
> On Thu, Aug 8, 2019 at 4:07 PM Adam Kumiszcza
> wrote:
>
> Although there is one method using WSL, there is also the "native" method
>
>
From: Adam Kumiszcza
First of all, thank you for the info you put on satsignal.eu org! I've used
some of these in the initial configuration of my server.
By feeding PPS signal to the Windows PC you mean adding cards or connecting
boards (like Sure Electronics GPS evaluation boards) to Windows
On Thu, Aug 8, 2019 at 4:07 PM Adam Kumiszcza wrote:
> Hi everybody! My first post here, I hope the subject is adequate for this
> mailing list.
>
> I'm using a tiny layer 1 NTP server consisting of Raspberry Pi 3B+ with
> Ublox MAX-M8Q expansion board providing GNSS (currently GPS, Galileo and
On Thu, Aug 8, 2019 at 7:01 PM Tim Lister wrote:
> On Thu, Aug 8, 2019 at 8:07 AM Adam Kumiszcza
> wrote:
> >
> > Hi everybody! My first post here, I hope the subject is adequate for this
> > mailing list.
> >
> > I'm using a tiny layer 1 NTP server consisting of Raspberry Pi 3B+ with
> > Ublox
On Thu, Aug 8, 2019 at 7:00 PM David J Taylor via time-nuts <
time-nuts@lists.febo.com> wrote:
> Hi everybody! My first post here, I hope the subject is adequate for this
> mailing list.
>
> I'm using a tiny layer 1 NTP server consisting of Raspberry Pi 3B+ with
> Ublox MAX-M8Q expansion board
On Thu, Aug 8, 2019 at 8:07 AM Adam Kumiszcza wrote:
>
> Hi everybody! My first post here, I hope the subject is adequate for this
> mailing list.
>
> I'm using a tiny layer 1 NTP server consisting of Raspberry Pi 3B+ with
> Ublox MAX-M8Q expansion board providing GNSS (currently GPS, Galileo and
Hi everybody! My first post here, I hope the subject is adequate for this
mailing list.
I'm using a tiny layer 1 NTP server consisting of Raspberry Pi 3B+ with
Ublox MAX-M8Q expansion board providing GNSS (currently GPS, Galileo and
Glonass, sometimes I switch to Beidou, too) reference with PPS
y, 8 August, 2019 19:26:11
Subject: [time-nuts] Precision Time Protocol – Windows 10 implementation
Hi everybody! My first post here, I hope the subject is adequate for this
mailing list.
I'm using a tiny layer 1 NTP server consisting of Raspberry Pi 3B+ with
Ublox MAX-M8Q expansion board providing
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