t...@leapsecond.com said:
If the quake is strong, the temporal acceleration is on the order of 0.1 g.
See: http://en.wikipedia.org/wiki/Peak_ground_acceleration
There is a long tail on that curve. One could also define strong as 1 g.
The wiki page (above) lists 3 events with PGA above 2 g
Hi Andy,
Luciano, thank you for sharing your design, did you wind your own
inductors? Odd values.. Typically when designing filters I start by fixing
the inductor values and work backwards...
Yes I have wind the inductors, it is simple and ceap. If you have a
Network analyzer can fine tune
Can you tell me what program will open the .SCH files?
Thanks.
Joe
-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of paul swed
Sent: Monday, May 20, 2013 5:24 PM
To: paul swed; Time-nuts
Subject: [time-nuts] WWVB D-PSK-R updated 12 Mhz
Hello Fellow time nuts,
I received a Datum 9390 GPS receiver I bought off eBay today. It had a PSU
fault and I am running it off a bench supply until I can get the PSU working
again. All the PSU does is supplies 28V so I can probably adopt a more recent
supply to fit if I can't fix the old
The question here, I think was about the day-to-day shaking, not a once in
a lifetime event. Seriously if there was a 1+g acceleration who'd care if
their OCXO was still running under that pile of rubble that used to be a
house. It is the days-to-day level stuff that matters to time keeping
There was definitely a delay -- I saw it on my own message last evening.
I have done some performance tuning on the mail server that might (or
might not...) make a difference.
The new server we put on line back in January certainly has enough
horsepower, so hopefully tweaking is all it will
On Tue, May 21, 2013 at 3:39 AM, J. L. Trantham jlt...@att.net wrote:
Can you tell me what program will open the .SCH files?
Without looks ing 'd guess Eagle CAD. There is a free version and it
runs on many platforms, Google will find it.
--
Chris Albertson
Redondo Beach, California
On 5/21/13 8:29 AM, Chris Albertson wrote:
The question here, I think was about the day-to-day shaking, not a once in
a lifetime event. Seriously if there was a 1+g acceleration who'd care if
their OCXO was still running under that pile of rubble that used to be a
house. It is the
Chris shared the link and it may be server delays discussed on another
thread. Its ExpressPCB and the links in this thread.
regards
Paul.
On Tue, May 21, 2013 at 11:07 AM, Chris Albertson albertson.ch...@gmail.com
wrote:
On Tue, May 21, 2013 at 3:39 AM, J. L. Trantham jlt...@att.net wrote:
I just had a message show up now at 14:46 that was posted at 11:07 AM
EDT (08:07 PDT). The headers show it took an hour to be received by
febo.com, bounced around for another hour before being sent out, and
then took an hour to get to me.
David
On 5/21/13 12:06 PM, John Ackermann N8UR
Hi,
One should be careful with transformers, since they can bite you in
interesting ways. While they give galvanic isolation, they also act like
a capacitive divider. Just a primary and secondary coil will connect to
each other, and it is not uncommon for the connection to be asymmetric.
A
Boy, that was FAST!
-John
=
I just had a message show up now at 14:46 that was posted at 11:07 AM
EDT (08:07 PDT). The headers show it took an hour to be received by
febo.com, bounced around for another hour before being sent out, and
then took an hour to get to me.
David
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