On Tue, 16 Oct 2012 15:06:19 -0600
x...@darksmile.net wrote:
Question: What GPS timing module should I go with? No more Motorola
Oncore so what's best right now? Who sell modules? What are the price
ranges?
I would go for the LEA modules. For once because you get pretty complete
On Tue, Oct 16, 2012 at 7:03 PM, x...@darksmile.net wrote:
The miniITX mobos are quite impressive.
There is no argument there.
However, My simple idea was this:
Since I want to keep time at 3 separate locations
and wanted stratum 1 NTP, I didn't want overkill.
What is your accuracy
Question: What GPS timing module should I go with? No more Motorola
Oncore so what's best right now? Who sell modules? What are the price
ranges?
Your comments are most welcome.
-George, N2FGX
Hi George,
Welcome back to the list; you've been quiet for a long time. This sounds like a
Moin,
On Wed, 17 Oct 2012 11:42:06 -0700
Tom Van Baak t...@leapsecond.com wrote:
A new LEA6-T single piece cost IIRC 190EUR from the webshop.
A LEA5-T was IIRC half price.
And a little caution: the LEA5 modules use considerably more power during
aquisition than the LEA4 did and the
Tom,
Thank you and nice to be back!
Was working major hours for a while.
Workin' for a living :)
Now, I must confess that this project is sort of a
milestone for me.
Those who hate kids (I know you are out there !)
can stop reading now :)
My daughter, who just turned six, has been very
Hello everyone,
I started a new project for myself where I would use the RasperryPi
Linux board
as a NTP server.
My goal is to design a custom board for the Pi and mount a GPS
receiver on it. With this combination, I should be able to configure
NTP for the Pi and thus have the Pi act as
uBlox LEA-5T, LEA6-T? SkyTraq Venus5?
On Tue, Oct 16, 2012 at 11:06 PM, x...@darksmile.net wrote:
Hello everyone,
I started a new project for myself where I would use the RasperryPi Linux
board
as a NTP server.
My goal is to design a custom board for the Pi and mount a GPS receiver on
/
-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf
Of x...@darksmile.net
Sent: Tuesday, October 16, 2012 4:06 PM
To: Discussion of precise time and frequency measurement
Subject: [time-nuts] RasberryPi, timing and GPS receivers
Hello everyone
On 10/16/2012 05:06 PM, x...@darksmile.net wrote:
My goal is to design a custom board for the Pi and mount a GPS receiver
on it. With this combination, I should be able to configure NTP for the
Pi and thus have the Pi act as a Stratum 1 NTP server.
The new RasberryPI has 512MB memory so it
Michael,
Thank you for your most valuable information.
This is why time-nuts is so amazing!
My goal is actually two-fold.
First, I would like to have a NTP server that I can easily
hook up (well, as easily as possible) without
dedicating a Linux server each time.
My personal use would require
: Tue, 16 Oct 2012 15:06:19 -0600
From: x...@darksmile.net
To: Discussion of precise time and frequency measurement
time-nuts@febo.com
Subject: [time-nuts] RasberryPi, timing and GPS receivers
Message-ID: 20121016150619.16306sbpxvjy8...@darksmile.net
Content-Type: text/plain; charset=ISO-8859-1
Michael Tharp g...@partiallystapled.com wrote
[RE: raspberry pi ntp server]
It's not a terrible idea, but the RPI has a USB ethernet transceiver so
in addition to the latency/jitter of the ethernet it also has the
latency/jitter of the USB.
I've been playing with a pair of Raspberry Pi ntp
Annoyance with small Linux boards:
My single biggest annoyance is that
all the I/O connectors are coming out from
all 4 directions.
What I mean is this:
It would be nice to have ethernet+LEDs+USB+VGA(HDMI)
come out from one side, and Power/I/O/RS232
from the opposite side.
This way if I make
On 10/16/2012 06:28 PM, sh...@impsec.net wrote:
I'm a junior time-nut at best but it looks to me like jitter from the
USB Ethernet is acceptably low, based on ntpq -p anyway:
It's a minor problem at worst. There are many worse conflating factors
and NTP adjusts very slowly anyway to deal with
On Tue, Oct 16, 2012 at 3:26 PM, x...@darksmile.net wrote:
Michael,
Thank you for your most valuable information.
This is why time-nuts is so amazing!
My goal is actually two-fold.
First, I would like to have a NTP server that I can easily
hook up (well, as easily as possible) without
One does NOT need a dedicated server for NTP. NTP can run on a linux system
that is also a web and mail server or on e linux desktop system that you
use for web surfing and web browse ring, just as long as the box stays
running and you don't turn it off.
It's been discussed before, but
Coincidentally, I just ordered a R-Pi yesterday. I have other
potential uses for it, not NTP. If you are not in a hurry, it is
possible to find the Soekris boards on ebay for a decent price. I got
one last year, in a case, for $50.
Joe Gray
W5JG
___
On Tue, Oct 16, 2012 at 4:37 PM, Hal Murray hmur...@megapathdsl.net wrote:
One does NOT need a dedicated server for NTP. NTP can run on a linux system
that is also a web and mail server or on e linux desktop system that you
use for web surfing and web browse ring, just as long as the box
Question: What GPS timing module should I go with? No more Motorola Oncore
so what's best right now? Who sell modules? What are the price ranges?
One option would be just a DE-9 connector with power on pin ??? (I forget).
You may need inverters and/or level shifters on Rx and Tx.
That
The miniITX mobos are quite impressive.
There is no argument there.
However, My simple idea was this:
Since I want to keep time at 3 separate locations
and wanted stratum 1 NTP, I didn't want overkill.
Actually my reason for 3 different locations is simple:
Internet is flakey some places and
Err... I meant packs of cigarettes
NOT cartons :)
Quoting x...@darksmile.net:
The miniITX mobos are quite impressive.
There is no argument there.
However, My simple idea was this:
Since I want to keep time at 3 separate locations
and wanted stratum 1 NTP, I didn't want overkill.
Actually my
By the way, you need not use a USB serial adapter. Several folks are doing PPS
on the gpio pins.
Take a look here
https://github.com/davidk/adafruit-raspberrypi-linux-pps
And here
http://www.frambozenbier.org/index.php/raspi-community-news/4439-george-lu-on-ntp-pps
On Oct 16, 2012, at
Hello everyone,
I started a new project for myself where I would use the RasperryPi Linux
board as a NTP server.
[]
Question: What GPS timing module should I go with? No more Motorola Oncore
so what's best right now? Who sell modules? What are the price ranges?
Your comments are most
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