Hey Ed, Just knocked up a temperature sensor with a Dallas single wire
temperature sensor thingy, a pic and an LCD display.
So, I will know for sure I am hitting the xtal turning point.
I figured you had been right about everything so perhaps my temperature gun was
out.
It's probably a handy bit
-Original Message-
From: Paul
Sure. I think my point is that I've seen this problem on both of my
units when powered by both a 5V2A wall adapter supply and a 5V.8A
supply. Since the problem has been reported by other people it's
sufficient for me to look to other solutions that don't h
On Fri, May 24, 2013 at 8:14 PM
> From: Hal Murray
>> Besides I got them to run NTP and they're too jittery for my taste.
>
> How good/bad were they?
The view from the RPi*:
server (local remote refid st t when poll reach delay
offset jitter
Hello The Net:
Can anyone point me to a source for the subject software ?
Thanks Stan, W1LE Cape Cod
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> I wonder if anyone has suggestions as to how to check the timing variations
> between two PCs that are running windows.
If you are running ntpd, you can turn on logging for rawstats. That will
write a line to the log file for the client end of a client-server exchange,
aka when the response
It was just a sample to show the precision.
On Fri, May 24, 2013 at 3:39 AM, Bill Hawkins wrote:
> Dear me!
>
> Your clock is off by four years and change!
>
> Bill Hawkins!
>
>
> -Original Message-
> From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
> Behalf Of
Thanks Bob and judging from the lamp voltage I believe it. Quite a surprise
on both of them.
One is 97 and the other 99.
At least for these units we have a drop of information that did not seem to
be available before.
Regards
Paul
WB8TSL
On Fri, May 24, 2013 at 5:42 PM, Bob Camp wrote:
> Hi
>
Hi
EG&G went to great lengths to verify the "fill" in their cells. The units you
have should be at least as good as the large Efratom Rb's of the same era.
Bob
On May 23, 2013, at 2:00 PM, paul swed wrote:
> Hello to the group I obtained 2 of these units at the last MIT flea. Both
> not worki
> Besides I got them to run NTP and they're too jittery for my taste.
How good/bad were they?
What were you using for a time source? Does it have PPS support?
--
These are my opinions. I hate spam.
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I added a command to display or change the frequency offset to my ZCOMM
program.
To use it:
port 1
fe [new offset]
On 05/24/2013 05:06 AM, Ziggy9 wrote:
A few months ago Fabio Eboli posted some Python functions that might be useful.
I haven't used or tested them myself, but they migh
My solution is not to use the R Pi. An extra $20 gets you any number of
superior arm SBCs. Go cortex-A7 type cpu.
The Beagleboard XM I'm using has a bug in the built-in usb hub (patchable), but
it has no issues with hot plugging.
The R Pi is designed to be cheap, but you spend a lot of time
> Date: Fri, 24 May 2013 06:42:43 +0100
> From: "David J Taylor"
> I am also using a good power supply, not a minimally spec'ed
> unit - it's a 5.25V 2A model as supplied by ModMyPi.
Sure. I think my point is that I've seen this problem on both of my
units when powered by both a 5V2A wall adapt
I have owned a similar 9390-5588A with the FRK Rb inside for a few
years now. Although the Rb is quite old, the unit locks in just 3
minutes and finds the GPS time (off by 1024 weeks, 16 sec, UTC) in
four minutes and displays an initial PDOP 03. I have reset the time
to the correct UTC time but
Here the last revision for the interface script:
http://pastebin.com/rVuDK3py
This is an example of data logging using the previous
functions:
http://pastebin.com/H9sMT1GP
I had somewhere also a script that put out
nice real time graphs from the logged data,
see matplotlib, numpy, etc...
Hope th
Hello, I'm still here,
unfortunately my Rb are gathering dust
and I cannot follow the list everyday.
I wrote some scripts to automate data
collection from FE5680 and my counter
using python. They run in Windows and
can be used and modified at will, I've
not much time now, so I cannot give support
This may be way off topic, but the inrush current problem is probably
with devices not meeting the USB specification. As it turns out, a lot
of low end devices do not meet this spec.
I spent some time redesigning the power supply system of one such device
I was using. This time was covered by
PC clocks are cheap and not intended to be accurate, it's why time
synchronization is one of the things managed when a windows machine joins an AD
domain. As AD uses multi-master replication accurate time stamps are required
for normal operation
Best recommendation is to run NTP not SNTP as N
Yes, there is a free program that can poll all your windows machines on a
network.
http://www.greyware.com/software/domaintime/instructions/tools/lmcheck.asp
Jason
> I wonder if anyone has suggestions as to how to check the timing variations
> between two PCs that are running windows.
>
> Th
A few months ago Fabio Eboli posted some Python functions that might be useful.
I haven't used or tested them myself, but they might be of interest. Still up
on pastebin at
http://pastebin.com/download.php?i=VpZVuw0t
I don't know if Fabio has done any further work on this but perhaps he'll chim
From: Chris Albertson
[]
Simply using NTP on Windows will force the clocks to be without about .002
seconds. That is about as good as you can do using Windows.
[]
==
.. although these performance graphs suggest that 50-250 microseconds can be
achieved on Win
Dear me!
Your clock is off by four years and change!
Bill Hawkins!
-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of Christopher Quarksnow
Sent: Thursday, May 23, 2013 9:06 PM
To: Discussion of precise time and frequency measurement
Su
Hold on mate! You're not quite done yet. :)
You said you tweaked the cap to get the Control Voltage to 8 volts and
saw the proper frequency. You should be able to move the cap, and
therefore the control voltage, anywhere in the 2 to 12 volt range and
still see the proper frequency. Does tha
Perhaps you have the older boards.
google "Raspberry Pi Reboots on inserting a USB device"
"by mahjongg ยป Mon Nov 19, 2012 12:09 am
Don't hot plug USB devices directly into the PI, if you must hot plug
plug into a hub instead!
Its called "the rush in current problem", and it makes that the
curr
I wonder if anyone has suggestions as to how to check the timing variations
between two PCs that are running windows.
The background to this request is that I am running two instances of the
Weak Signal Program WSJT on the same computer and get variations of +/-0.2
seconds. It has been suggested
Run NTP on each PC. The use the ntpq command to print out a nice table.
Simply using NTP on Windows will force the clocks to be without about .002
seconds. That is about as good as you can do using Windows.BSD or
Linux can get about 2 uSec. NTP software is free and not hard to set up.
The "
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