Hi David
Standards Australia performs a somewhat different function in that it does
not maintain reference standards or do testing but rather it produces
written standards such as for construction of buildings, electrical wiring
and food standards. Standards Australia is certainly authoritative
John Reed wrote :
By the way, my 5 section synchronous filter is an LC with
op-amps between each stage to bring the gain up for the
squaring chip. It has a 2 KHz -6 dB bandwidth at 60 KHz.
John, have you thought of using a single 60.0 kHz crystal as a
bandpass filter?
I can't remember
Many of the old receivers use them spectracoms come to mind. They are big
units and +- 40 Hz BW and I am totally unaware that they can be found
today. That also goes for nice transformers and inductors to build higher Q
circuits.
I built a opamp chain and it worked well but those crazy amps do
First on the Schmidt trigger - The problem is that at the start of each
bit that WWVB transmits the squared 60 KHz signal is essentially dead and
the trigger must pick a new starting point. This point seems to be random
and can apparently end up as a positive or negative, so you end up with
The clock face has also been redrawn so the rate of time passage is
still positive:
http://www.bbc.com/news/world-latin-america-28013157
I've seen one article that argues that this is more natural in the
southern hemisphere, since the shadow on a sundial rotates CCW there.
- Dave
Yes indeed I have 2 X 599s also and the IF is complicated and if you don't
have the magical 60 KHz mod (I don't) you have to hack a solution. That I
did. Essentially double the vco and div by 2. While feeding the vco to the
mixer. Hey it worked most of the time and on a solid test signal always
I think OpenNTPD goes not try to be a stratum 1 server. It is not
something you would connect a hardware reference clock to. Look at
the man page for the .conf file.
On Thu, Jun 26, 2014 at 11:14 PM, Matthew Martin dr.g...@gmail.com wrote:
Greetings to the group! I just obtained a Rev C
Dear group,
please let me express my thanks for all your condolences. I
collected them all and will pass them to Ulrichs relatives. I am
quite sure they will be surprised and pleased about the number
of people who sent a message.
There was the question what will happen with Ulrichs
Hartmut that is indeed a friend that can keep a persons knowledge going and
had been entrusted with the details.
Good luck to you and thank you.
Regards
Paul
WB8TSL
On Mon, Jun 30, 2014 at 6:23 PM, Hartmut Paesler timen...@paesler.de
wrote:
Dear group,
please let me express my thanks for
On 2014-06-27 00:14, Matthew Martin wrote:
Greetings to the group! I just obtained a Rev C Beagleboard Black this
week, and the standard distribution does not include ntpd. When I check
for available ntpd related packages using the aptitude command, it offers
OpenBSD's openntpd as the one
The last time I looked openntp was really an SNTP implementation.
If you are running it on a leaf node it might be fine for you.
--
Harlan Stenn st...@ntp.org
http://networktimefoundation.org - be a member!
___
time-nuts mailing list --
Begin forwarded message:
From: Tim Heckman t...@heckman.io
Date: June 30, 2014 at 17:33:52 PDT
To: na...@nanog.org
Subject: Erroneous Leap Second Introduced at 2014-06-30 23:59:59 UTC
Hey Everyone,
I just was alerted to one of the systems I managed having a time skew
greater than
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