Moin
On Thu, 19 Apr 2012 18:18:24 -0400 (EDT)
ewkeh...@aol.com wrote:
I have quite a collection of equipment and have build Dual Mixer, PICTIC
and what I think is best for you a circuit I call the Austron circuit.
What is this Austron Circuit? And how does it look like? :-)
On Thu, 19 Apr 2012 23:39:32 +0200
skywatcher skywatc...@web.de wrote:
BTW i'm using the
Parallax 'Propeller' controller
which has 8 cores running at 80 MHz each, and can measure time intervals
with 12.5 ns resolution.
[...]
Looks like an interesting thing. But also very specialized.
If
Attila Kinali wrote:
On Thu, 19 Apr 2012 23:39:32 +0200
skywatcherskywatc...@web.de wrote:
BTW i'm using the
Parallax 'Propeller' controller
which has 8 cores running at 80 MHz each, and can measure time intervals
with 12.5 ns resolution.
[...]
Looks like an interesting thing.
It is a circuit that they for instance use in the 2110 where they take the
reference input in case of 10 MHz divide by 2 and also divide the 5 MHz
down to 500 Hz use an exor and out comes 5.000500 MHz filtered and divided by
5. The result is 1.000100 MHz which is mixed with the unknown
Hi Chris,
On 19 April 2012 19:54, Chris Albertson albertson.ch...@gmail.com wrote:
Here is what you need to do...
1) Get NTP working on the Linux system using Internet peers as the
reference clock. Use pool servers. This is very easy to do and don't
skip this step. It verifies NTP works
You may want to look at how that was done many years ago with
frequency difference multiplication as in the old Tracor meters - I
think the 528 was the main one. They synthesized a 9 MHz reference
from one input, and then subtracted it from the other to get a 1 MHz
result, which was used as a
I have and use a Tracor 527E how ever the Austron circuit including counter
is a PCB board 2.2 X 2.5 inches and I have not seen a Tracor for $ 50. I
think I paid $ 800 fifteen years ago.
Bert Kehren
In a message dated 4/20/2012 11:37:16 A.M. Eastern Daylight Time,
e...@telight.com
Ed
at one time I used two 9 GHz multiplier chains out of FTS 4000's mixed
them, if you are interested contact me off list I may still have them. Have
thrown out many things because I am downsizing in preparation for a move.
Bert
In a message dated 4/20/2012 11:37:16 A.M. Eastern Daylight
Wolfgang asked
Does anybody know a possibility to get a resolution 1 mHz ? (in 1 second)
The goal is look for frequency deviations caused by external influences ...
A silly question to ask time nuts. :)
How good do you really want it to be?
1 mHz out of 10 MHz in one second is only 1 part in
Ur car is in row n spot 14e at airport parking. Gave keys to driver
Tom c. They're in envelope at front.
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Oh, thank you. I needed a new car. :)
-John
=
Ur car is in row n spot 14e at airport parking. Gave keys to driver
Tom c. They're in envelope at front.
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Greetings my fellow 'Keepers of Atomic Time',
It's been a while but I've been so busy, that I need more than 15 Cesium Beam
Atomic Time and Frequency Standards to keep track of my time (and frequency for
that matter).
I am seeking anyone who may have a copy or an original copy that could make
Original Message
Subject: Re: WWVB test
From:John Lowe l...@boulder.nist.gov
Date:Fri, April 20, 2012 3:18 pm
To: John Lowe l...@boulder.nist.gov
Cc: Lowe, John P john.l...@nist.gov
[Parking lot location details deleted]
While clearly not spam, the only other time Mr. Darlington's name appears
in this group in the 12,459 low noise messages since 12/31/2010 was the
following:
-Original Message-
From: Robert Darlington
Sent: Tuesday, October 04, 2011 4:07 PM
To:
No, there are a lot more messages from him since at least 2008 and last
one in the chinese scopes thread some days ago. The e-mail origin seems
quite authentic from the headers, so I suspect he has sent it to the
list in error :)
Rgds,
Javier
El 21/04/2012 00:50, Bill Hawkins escribió:
Oh gosh. Sorry guys. I have a nickname of me for when I want to
email myself. Sometimes it matches on the first two letters of
measurement and matches this list.This is the first time (that I
know of) that I didn't catch it.
-Bob
On Fri, Apr 20, 2012 at 4:10 PM, J. Forster j...@quikus.com
On 2012/04/20 13:44, time-nuts-requ...@febo.com wrote:
For a high end example showing external influences causing small freq
variation, see the swinging OSC test at
http://www.thegleam.com/ke5fx/tpll/swing.gif
Neat! Is there a page explaining a bit more about it?
I was summarizing the
No page. The effect is nothing very special. No relativity.
Mostly just the effect of the oscillator's G sensitivity caused by tilting
and acceleration as it swings.
What is generally measured with a 2 G static turn over test.
The thing about the test is that it gives a signal that is very
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