At 02:20 PM 6/2/2013, Don Latham wrote:
The manual at least hints that you will get 1 pps out no matter which
MHz signal is generated, although I find the presence of 1 pps out and
1 pps in signals a bit confusing...
It appears to have a TIC and logic for disciplining the pps out to a
GPS pps
I'm wanting to fiddle with the LH source code. I've upgraded to XP,
downloaded and installed VSE 2008, but I've not figured out how to
get VS to accept a makefile based project. Rather than re-invent the
wheel, I thought I'd ask--does anyone have a VS solution file handy?
thanks!
newell N5T
At 04:12 PM 3/14/2010, John Miles wrote:
There isn't an 'official' .sln one at this time, but you can just run nmake
in the c:\program files\heather directory if you're set up to compile from a
DOS prompt.
Yeah, I just noticed the "Visual Studio 2008 Command Prompt" link,
which setup the envir
At 08:56 AM 4/20/2010, J. Forster wrote:
Do you know the story of the CK722?
In the 1950s, Raytheon was making tiny transistors for hearing aids to
replace the pre-WW II subminiature tubes.
Aside: Those tubes, developed by Norm Krim, were ruggedized and used in
the WW II Proximity Fuzes, one of
At 09:44 AM 5/27/2010, Steve Rooke wrote:
Well, I've tried it from a Windows 7 install here and still cannot get
it up using Firefox or IE so it must be some sort of regional
blocking. Windows troubleshooter under IE could not suggest an answer
for this but there again that's hardly surprising.
At 01:17 PM 9/2/2010, Mark J. Blair wrote:
Back in college, I took a semiconductor device physics course which
included a lab where we made simple ICs (the most complex devices
were SR latches). We had a vapor deposition system for plating on
gold or aluminum, which pumped the chamber down be
At 03:19 PM 4/18/2012, John Ackermann N8UR wrote:
The certificate "error" is because it's self-signed and not
commercial, which costs a chunk of change every year. We use SSL to
avoid sending passwords in the clear and not for ecommerce purposes,
so (apart from browsers complaining) there isn'
National Institute of Standards and Technology
Telephone Time Service, Generator 1c
Enter the question mark character for HELP
D L
MJD YR MO DA HH MM SS ST S UT1 msADV
56108 12-06-30 23:59:35 50 1 -.6 045.0 UTC(NIST) *
56108 12-06-30 23:59:36 50 1 -.6 045.0 UTC
Looks like one has issued (8,270,465). Application 20120082008
appears to be relevant as well.
http://www.google.com/patents/US8270465
http://www.google.com/patents/US20120082008
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At 09:09 AM 7/23/2008 , Max Skop wrote:
>How does one get a 32.768KHz signal from our 10MHz reference.
>There does not appear to be a nice divide ratio to do this.
>With a locked 32.768KHz signal one could lock the oscillator of any of
the cheap (low cost) LCD clocks that are available with nice b
At 06:29 PM 8/12/2008, Hal Murray wrote:
>USB isn't fundamentally evil. It's polled, so you won't get great response
>to something like a PPS interrupt. But the polling is handled automagically
>with modern hardware so It's not much worse (maybe better) than the typically
>interrupt batching tha
At 03:04 PM 8/13/2008 , Mark Sims wrote:
>approach. Atmel's programmers can be a bit cumbersome and finicky about
establishing connections to their processors.
No kidding! I'm hacking on the new HP 20B financial calculator (think of
it as a $40 AT91SAM7L128 demo board), and that SAMBA program t
At 07:36 AM 8/16/2008, wje wrote:
>I have both EE and CS degrees, and I work in both worlds. In my humble
>(but completely accurate and stable) opinion, Basic is not a programming
>language. It's a tool of Satan designed to convince people that they are
>programmers when they really should stick t
At 11:38 AM 12/29/2008 , Richard W. Solomon wrote:
>I have a nice looking display that I salvaged from a piece of
>Cell Phone Site equipment. It's either a 4 X 20 or 4 X 40 display.
Got pics? What's the connector look like? Graphic LCD, character mode
LCD, VFD, LED, plasma, or? Any chips/driver
At 12:29 PM 12/29/2008 , Richard W. Solomon wrote:
>Not sure if this accepts attachments, but here goes ...
I doubt it's a 4x40--there's only one controller visible in the pic. Maybe
a 2x40, 2x20, 2x16, etc.
The 2x8 connector isn't as common as a 2x7. Most that I've seen tie the
backlight to pi
At 06:39 AM 12/31/2008 , Neville Michie wrote:
>If WWV does something notable I would love it if some one could make
>a sound clip of it.
I plan on recording the WWVB timecode (sampling the demodulated output of a
rat shack radio clock at 100Hz), logging a TAPR Thunderbolt, and doing an
audio re
At 06:06 PM 12/31/2008, Mark Sims wrote:
>My Thunderbolt showed no leap second (set to display GPS time)
>... went from 23:59:59 to 00:00:00. 15 seconds after the hour the
>"Leapsecond Pending" indicator went off.
I have a screenshot of TBoltMon showing "23:59:60", but I'm
monitoring UTC ti
My low-end Radio Shack 'atomic clock' did not handle the leap second.
I started this evening with a good plan--used a digital camera
capable of video (and audio) recording to record the display of the
radio clock vs. a hand synchronized 59309A clock (running from
internal oscillator), complete
Here's a snip of my Thunderbolt leap second log. 345614 is the leap
second. Looks like the minor alarm 128 went away. I'm pretty sure
bit 7 (decimal 128) is the leap second pending bit, so that makes sense...
345610 -1.8 0.04 0.7880974 36.42 0 0 0 128 7 0
345611 -1.8 0.03 0.7880974 36.42 0
At 07:07 PM 12/31/2008, Tom Van Baak wrote:
> > My low-end Radio Shack 'atomic clock' did not handle the leap second.
>
>Scott,
>
>I'm not sure if any of the low-cost radio clocks handle leap
>seconds correctly. Clearly the analog clocks can't (there is
>no way to show the 61st second with clock ha
At 12:55 PM 11/20/2008, Chris Kuethe wrote:
>On Thu, Nov 20, 2008 at 10:40 AM, Brad Stockdale wrote:
> >o WWVB = 60 KHz
>
>I bought a nice little module from digi-key to handle this.
>561-1014-ND, under $11 including the ferrite antenna.
Do you recall if 561-1014-ND was the board and ante
At 07:31 PM 1/6/2009, David M. Witten II wrote:
>I was confused by their description too. It does include the antenna.
>I bought two to play with. It seems pretty complete, but I haven't
>written any code to read it yet.
Thanks--appreciate the confirmation!
--
newell N5TNL
At 01:59 PM 1/8/2009 , Poul-Henning Kamp wrote:
>In message <49665a6d.2030...@xtra.co.nz>, Bruce Griffiths writes:
>
>>I have been unable to find a reference to triax consisting of 3
>>conductors within a shield, however such confusion is understandable
>>given the confusion over quadrax:-
>
>I hav
At 06:57 PM 1/11/2009, Brooke Clarke wrote:
>Hi:
>
>I've received the 60 kHz version of the C-max CMMR-6P LF time code receiver
>module. Digi-Key ( 561-1014-ND) has these improperly listed in their catalog
>and the CMMR-6P data sheet has a typo that may have mislead Digi-Key.
Ah-hah! There were
At 09:30 PM 1/13/2009, Brooke Clarke wrote:
>Hi Scott:
>
>Press F5 at:
>http://www.prc68.com/I/Loop.shtml#CMMR6P60
>and scroll down to see a scope image. Not sure if the dots are caused by the
>sampling scope or by noise?
Bad reception. My old rat shack 'atomic clock' signal looks like
that som
At 09:30 PM 1/13/2009, Brooke Clarke wrote:
>Hi Scott:
>
>Press F5 at:
>http://www.prc68.com/I/Loop.shtml#CMMR6P60
>and scroll down to see a scope image. Not sure if the dots are caused by the
>sampling scope or by noise?
Here's my current signal:
http://www.digital-pickle.dyndns.org/images/wwvb/
At 12:24 PM 1/14/2009 , Poul-Henning Kamp wrote:
>In message <496e195a.1050...@pacific.net>, Brooke Clarke writes:
>
>>My first problem is to hook the front end up to a couple of batteries
>>and a LED to find a good place for the antenna.
>
>Be aware that the AGC has a very long timeconstant, you s
At 12:44 PM 2/5/2009 , Mark Sims wrote:
>
>I doubt the temperature sensor is just used for environmental monitoring.
If it
>was, they would most likely have just used the basic 0.5C resolution
reading
>and have been done with it.Instead, they do the high res read routine
and
>then feed tha
At 11:05 AM 2/8/2009, Mark Sims wrote:
>If I can find an earlier rev DS1620 chip and interesting test would
>be to run late production tbolt in holdover mode for 24
>hours, record the oscillator drift, change the DS1620 chip, and
>run the test again. My bet is you would see a significantly s
At 12:00 PM 2/8/2009, Mark Sims wrote:
>The tbolt uses the DS1620S chip in the SOIC-8 package. The DIP
>package has quite a bit of thermal mass and would probably not work
>as well. The chip revision is the last two characters of the date
>code line (second line on the SOIC chips). I am lo
At 07:41 PM 3/7/2009, Tom Van Baak wrote:
>I know *late* model 5245L counters used the 10544A oscillator.
>Perhaps others in the group can provide other examples and
>then you can head off to the online manual sites and grab the
>info you need from the PDF files.
My 5345A has a 10544A.
--
newel
At 12:29 PM 4/14/2009 , John Miles wrote:
>... for those who would like to participate in HDL discussions that aren't
>on-topic for existing lists:
>
>http://groups.yahoo.com/group/HDLTalk
>
>Any VHDL or Verilog HDL-related topics are welcome.
How will this compare to comp.lang.verilog, comp.lang.
One of our very own got noticed today on Hacker News:
http://news.ycombinator.com/item?id=598090
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At 11:52 PM 7/31/2009, Thomas A. Frank wrote:
Folks;
Writing as someone in the US, I keep seeing interesting available
electronic components coming out of Russia, the Ukraine, etc. on
eBay. I rather suspect there are a lot more types available than what
I see there.
Seems like I once read that
At 03:02 AM 8/2/2009, Steve Rooke wrote:
Has anyone discussed making this mailing list into a centralised forum
on web server. The benefits would be that all replies are naturally
I would absolutely not prefer a web forum. Hate 'em for many
reasons. Usenet and privately run email lists are b
At 03:34 PM 8/26/2009 , Mark Sims wrote:
>
>
>The problem is with the Windows code. I don't know how to reliably
control the modem signals under Windows... perhaps John Miles would know.
Most Windows users use USB-
EscapeCommFunction()?
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At 10:50 PM 10/14/2009, Mark Sims wrote:
The question is what is the maximum full screen resolution of your
video monitor? If there is some consensus on screen sizes in
use, I can optimize the code for maximum natural goodness...
1280x1024.
_
At 03:09 PM 10/25/2009, Steve wrote:
I remember seeing a posting on this reflector in the last year or
two about how to disable the PC's serial mouse so a Thunderbolt can
be used on the serial port with no ill effects. Thought I saved that
email, but can't find it.
Anyone remember how to disa
At 05:41 PM 12/13/2009, J. Forster wrote:
Likely true. There is a DEC museum in WA state, I think. A Paul Allen
thing maybe? They might be interested. Reading 30+ YO mag tape might be
pretty hard.
Isn't a punched paper or mylar tape? The DEC 8e machines I've seen
(controlling NC punches) had
At 01:57 PM 12/24/2009, saidj...@aol.com wrote:
No need for that, just buy all ~18 million tickets (would cost $18 million
in the US) if the jackpot is ~$60 million or higher, which it often is...
I read someone from Australia did that in New York, and won..
Yeah, I've read this story before t
At 03:56 PM 12/24/2009, J. Forster wrote:
Many years ago, when the State Lottern Numbers Game started up here, I
noticed that doubles were coming up a lot... like 4662. I was utterly
convinced they were overrepresented.
That reminds me...one of the footnotes in Wolfram's "A New Kind Of
Scienc
At 02:31 PM 12/30/2009 , Christopher Hoover wrote:
>Sorry for the off-topic post, but ...
>
>I'm looking for a vendor who can make a couple of simple power cable
>assemblies for me.
Where are you located?
--
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At 01:57 PM 1/25/2010 , Don Latham wrote:
>
>Hi TN's I have an Hp 3750A interval counter for parts. Front panel bezel
>is missing, as is the time base. It had a 10544A in it, I think.
>All other boards, etc. are there; condition unknown except no smoke
>escapes when fired up, and all 8's on reset.
At 03:26 PM 1/25/2010 , Don Latham wrote:
>Scott: I appreciate that! But I need to get rid of the whole thing. If I
>do peddle it, I can let you know who bought it, and maybe...;
Yeah, that's what I'm thinking too.
--
newell N5TNL
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At 07:42 AM 2/2/2010 , Robert Atkinson wrote:
>than a 141T setup. I think you will find that the E8285A is the same as the
>8924C and uses non-volatile RAM cards, not flash. These cards are rare now
and
>have CMOS ram and a lithium coin cell. You MIGHT be able to read a flash
card,
>but I'm pre
Wasn't someone looking for some of these the other day?
I've found an old Intergraph monitor d-sub connector (24W7, I think)
that has five of the high dollar male coax inserts, if anyone wants
it. Each connector has about 12" of what feels like RG-174
attached. I'm not sure how you'd release
At 11:37 AM 2/16/2010 , WarrenS wrote:
>
>In the ever ending battle to improve my TBolt's performance, I am in the
process of upgrading a OCXO replacement I did to it a while back.
>It would be Interesting to hear suggestions from others that have done
similar sort of things and the results they ha
At 09:04 AM 11/8/2010, Poul-Henning Kamp wrote:
1. Mount a X-tal-osc with really lousy tempco inside the enclosure.
2. Compare its output to a stable reference frequency.
3. Use the output of the phase comparator to drive the Peltier.
It is basically a PLL where temperature is used as EFC...
So, where do I find some SC-cut crystals to play around with?
I don't need stellar performance. Think crude lab-hacks at this point.
Any ideas?
I got mine from Charles Wenzel. It think it failed his phase noise
screening. Really nice guy, BTW.
--
newell N5TNL
At 11:25 PM 11/14/2010, Richard (Rick) Karlquist wrote:
Someone was asking about SC cut crystals to play with.
I have a few dozen 10.23 MHz SC cut crystals that are
interchangeable with 10811 10 MHz crystals, except for
the frequency difference. They were made for a GPS
version of the 10811 that
At 08:46 AM 11/30/2010, Robert Darlington wrote:
Also, I apologize if I'm breaching protocol with this thread. This is just
about the first post I ever saw on this list that didn't get a steady stream
of replies. I was actually questioning if this even made it into the list
till I saw this rep
At 04:36 AM 12/17/2010, Bruce Griffiths wrote:
One possible relatively simple module could use an ACAM TDC-GP2 to
compare the relative stability of a pair of low noise oscillators.
Speaking of the ACAM parts, has anyone received pricing lately? I
was quoted around $30 for the TDC-GP2 and over
At 11:14 AM 1/25/2011, Bob Camp wrote:
Looks like somebody grabbed it pretty fast. I wonder if they have the
hardware that goes with the manual?
I sent the ebay link to a friend with one, but I've not heard if he
bought the book.
--
newell N5TNL
__
At 11:24 AM 1/25/2011, Scott Newell wrote:
At 11:14 AM 1/25/2011, Bob Camp wrote:
Looks like somebody grabbed it pretty fast. I wonder if they have the
hardware that goes with the manual?
I sent the ebay link to a friend with one, but I've not heard if he
bought the book.
Oops. I
At 08:50 AM 2/19/2011, Poul-Henning Kamp wrote:
Imagine a board with EPROM + ARM chip w/USB interface...
HP5370B with built in allan-variance calculation, anyone ?
No, I don't have the time, but if I had...
I've had similar (like maybe a Luminary ARM + ethernet) thoughts. I
wasn't sure if
At 10:55 PM 2/20/2011, John Seamons wrote:
I've been looking at this a bit recently.
Pictures here: http://jks.com
Wow!
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At 01:41 PM 3/17/2011, beale wrote:
output of a 26 MHz Pletronics OCXO in a 14DIP can (by the way these
go for $2 online, the cheapest OCXO I've seen). This was just a
quick casual comparison, not to be taken too seriously.
That's a great price for any OCXO. Do they have EFC? (I can't tell
At 01:38 PM 5/16/2011, Bill Hawkins wrote:
Part of the problem is that this list discourages off-list
discussion by not providing the individual's email address.
What? I'm looking at the from: header and see "Bill Hawkins" .
--
newell N5TNL
__
Here is a letter Bob wrote about Jim shortly before his death as posted by
one of the commentators from the below link:
Then he calls us to an awards meeting. I was only 19. He gives the new CEO
the triple humper award.He pulls a three cup bra from a shopping cart.
I saw that too, but the a
At 02:51 PM 6/20/2011, Javier Herrero wrote:
I was thinking the same... and also that Pease name was Robert A.,
not Ralph (and its usually signature was RAP)
How's this: Ralph had two stories to tell in that post. The first
was that he received an email from Bob Pease the night of the
accid
I'm planning on counting 60Hz line cycles with some embedded
hardware, then dumping the count over RS-232 every minute or so to a
linux box running ntp. Any thoughts on what data to log?
Obviously, the 60 Hz cycle counter.
Timestamp when data was received at the serial port? (It looks like
At 02:14 PM 6/29/2011, Tom Van Baak wrote:
Out of curiosity, if anyone on the list has pointer to papers that
show actual measurements of desktop systems used as precise
timing devices let me know. Not external boxes or PCI cards, but
using the OS itself as a timer. I'm sure with care 1 us or ev
At 01:31 PM 6/28/2011, Tom Van Baak wrote:
I'm planning on counting 60Hz line cycles with some embedded
hardware, then dumping the count over RS-232 every minute or so to
a linux box running ntp. Any thoughts on what data to log?
Scott,
You have a PC and RS232? Skip the embedded hardware.
At 01:24 PM 6/30/2011, Hal Murray wrote:
> Any advice on an easy way to convert my timestampts from time_t to mjd?
> I'm using C here.
It's trivial. All you have to do is offset by the difference in starting
days.
Got it working. Thanks!
--
newell N5TNL
___
At 09:54 PM 7/3/2011, Tom Van Baak wrote:
This is about half a day from a webcam, taken at 15 minute
intervals by a PC, compressed to a 12 second animated GIF.
http://www.leapsecond.com/pages/tec/mains-clock-ani.gif
That's funny...I picked up a mains clock yesterday and started
something sim
At 04:25 PM 4/15/2005 -0700, Had wrote:
>I have to agree with Brooke. I have both the 5370B and SR620 and I like the
>620. I will admit to using the 5371A every once in awhile.
Sure, but what's a used SR620 go for these days? Can anything come close
to the 5370 at bang for the buck?
--
newell
At 09:17 AM 4/18/2005 , Robert Aurand wrote:
>Asking this question just out of curiosity: Is it at all feasible to
home build an atomic standard? I guess it would be Rb and not Cs. What
are the difficulties that would be encountered?
Where would the hydrogen maser stack up in terms of difficu
At 07:07 PM 4/25/2005 -0400, Mike S wrote:
>2) Anyone have a .pdf of the user/service manual? Mine, I believe, is a
fairly late production (series 2311) for the "A." If not, I suppose I'll
wait and see what Agilent is up to with the old docs.
I have a 5370A book on hand. It's on load from a frien
At 03:46 PM 5/31/2005 , David Kirkby wrote:
>
>What I did do however (for simplicity) was to read the data in as the
>standard ASCII, which is the default output data format of the HP. I did
>not use binary.
Doesn't the 5370B have to do more calculations to spit out ASCII data than
binary? I th
At 09:22 AM 6/20/2005 , Mike Feher wrote:
>Besides having the attributes I described in my initial post I noticed that
>instead of having the two typical bayonet type slots like a BNC, these have
>three. So, there are three posts on the sides of the sockets requiring three
>slots in the plugs. Has
At 10:18 AM 6/20/2005 , Mike Feher wrote:
>I thought of "triax" but most of those I have seen were different. I'll look
>at the URL you sent along. I get so many Pasternak catalogs that I always
>throw them out. Now I wish I had one handy. Regardless, even if I would find
Give it a week, and I'm s
At 11:45 AM 6/20/2005 , Bill Hawkins wrote:
>Telco equipment has a BNC shell over a two pin connector
>for shielded twisted pair. The connector is keyed by
>different heights for the two pins. I haven't found it
>because I don't know what to call it.
Twinax?
--
newell N5TNL
___
At 09:43 AM 9/16/2005 , Poul-Henning Kamp wrote:
>
>In modern computers the synchronous RAM requires clock signals which
>have very tight specs on delay and jitter and the only way this is
>possible in practice is by using 1:1 PLL's as "zero delay buffers".
>
>See for instance:
>
> http://www
At 12:35 PM 12/21/2005 , Poul-Henning Kamp wrote:
>
>I have asked the GNUradio crew to help out with off-the-air samples,
>and I hope people in this forum can help me out with captured data
>streams from all sorts of radio receivers (WWV/DCF/GPS etc).
Do you have any guidelines for what you'd like
At 07:18 PM 12/31/2005 -0500, John Ackermann N8UR wrote:
>
>As Poul-Henning requested, I'm doing two hours of audio recording (well,
>I got started about 3 minutes 30 seconds after 23:00) and will make that
>available to anyone who wants to examine the timecodes.
I managed to get some audio of WWV
At 08:53 PM 12/31/2005 -0500, Dennis O'Keefe wrote:
>At one hour, 37 minutes into the post-leap second era, my Ultralink 333 WWVB
>clock has also still not made the change. It indicates that a leap second is
>pending at the end of the month and still had the -6 for difference to UT1.
Interestin
At 12:21 PM 1/1/2006 -0500, John Ackermann N8UR wrote:
>I've wrapped a web page around my data, with photos of the Spectracom
>non-event :-) and some other info.
>
>http://www.febo.com/time-freq/leapsecond-2005.
Any chance of getting a few more minutes (say leap-10 to leap+10) of WWVB?
I'm still l
At 09:43 PM 1/2/2006 -0500, John Ackermann N8UR wrote:
>
>Feel free to grab 'em (please try the MP3 first and only get the WAV if
>the MP3 won't do the job).
Your MP3 worked just fine, even with the dirt simple AM demodulator I'm
futzing with. Got the same results as with the demodulated datastre
At 01:37 PM 1/5/2006 , Tom Van Baak wrote:
>
>A small subset are NAWCC Horological Science
>Chapter #161. This is a group of modern pendulum
>clock makers and are driven more by the amazingly
>deep science and technology of vintage and modern
>precision pendulum clocks than the art and fashion
>of
At 05:36 PM 1/21/2006 -0800, James Maynard wrote:
>Why don't you ask for permission from GPS World before violating their
>copyright?
Or view the (horrible) on-line 'digital edition'?
http://www.nxtbook.com/nxtbooks/questex/gps0106/index.php
I still have my physical copy on the Jan '06 issue.
At 09:30 AM 1/22/2006 +, Rob Kimberley wrote:
>I didn't have a link to the on-line version, so the "problem" is now solved.
Neither did I, but I'm a good guesser. ;-)
--
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At 09:25 AM 3/15/2006 , Normand Martel wrote:
>
>I'm also interested in one of those oscillators... A
>quartz that rivals Rb is surely a good shot!
Is anyone else surprised that they're using an AT cut rock rather than an SC?
--
newell N5TNL
___
ti
At 12:03 PM 3/15/2006 , James Maynard wrote:
>
>I did not see any mention in their specification heet of a voltage input
>to tweak the frequency, which would be a disadvantage for me. I like my
>SRS PRS-10, which provides both a voltage input for frequency control
>and a 1 PPS input for discipli
At 03:51 PM 3/15/2006 , Magnus Danielson wrote:
>
>If you look closely you will find that the BVAs exists in both AT and SC cut
>forms. Your milage will vary accordingly.
Yes, but isn't the SC cut rock only in the 8607?
--
newell
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At 11:20 AM 5/16/2006 , Brooke Clarke wrote:
>Hi:
>
>I came across a 1946 patent for a vacuum tube based counter circuit that
>will divide 60 Hz down to 1 Hz. It's interesting in that there's a
>discussion about the advantage of using binary instead of base 10 and
>also about using feedback to
At 04:06 PM 5/17/2006 -0500, Bill Hawkins wrote:
>
>The other source of error is the drift in your PC clock.
>NTP adjusts the clock frequency if you have an adjustable
>clock frequency, as is found in Unix derivatives. AFIK, a
>wintel clock frequency can't be adjusted. So the PC error
I think it c
At 08:51 AM 7/19/2006 , Joseph Gray wrote:
>
>Yes, the ebay feedback system is flawed. I have also run into the problem of
>sellers withholding feedback until I leave them a good one. This is
>blackmail, pure and simple. I have even gotten nasty feedback when I left a
>neutral feedback because t
At 09:41 AM 9/27/2006 , Richard \(Rick\) Karlquist wrote:
>I talked to the Agilent Library, and they said that
>if I donate these manuals, they will be stored but
>not scanned at this time. I thought I would ask
>here if there is any interest in any of these manuals.
>Perhaps I can scan a few myse
At 09:22 AM 9/29/2006 , buehl wrote:
>the fiber. I have had good results attaching one end of cheap plastic
>fiber to tip of photodiode with clear glue or epoxy. Cheap plastic fiber
>like that used in decorative lamps, or experimentor type sold by Radio
>Shack, will also pass IR for short dist
At 02:39 PM 12/10/2006 -0700, David Forbes wrote:
>Jason,
>
>I'm no expert at these devices, but here's what I've learned in the last
year:
>
>The Ball/Efratom FRK is the oldest design that's commonly available.
Where does the M-100 fall, relative to the FRK and FRS? (My M-100 has a
1990 date co
eBay item 150082419799 (Genrad 475-C)--is this some kind of OCXO frequency
reference? From the description, it sounds like it might be used to
monitor a broadcast transmitter frequency. Be sure and scroll down and
check out the wood and foam oven box and the "quartz plate" resonator.
The '56 GR
At 03:45 PM 2/2/2007 -0500, Mark Amos wrote:
>
>Now I know that it won't be as stable as the original fancy SC-cut crystal
from HP, but it might be stable
>enough to use as a non-critical bench oscillator for experimenting, etc.
I'll keep it running for a while
Hey, you might bug Chuck Wenzel.
At 08:22 PM 2/11/2007 -0500, David I. Emery wrote:
> Try Ebay item 330086820549.
>
> Look like used pulls with a special case mounting of some kind...
Should we try to organize a time-nuts group purchase discount?
--
newell N5TNL
___
ti
At 02:25 PM 2/14/2007 , Colin Bradley wrote:
>Here is the latest Thunderbolt purchase list. It is now near 40 units.
>Scott Newell[EMAIL PROTECTED]
1 unit
If by some miracle we can get down to $150 or less, I'd bump up to 2 unit
At 02:14 PM 2/22/2007 -0800, Rick Karlquist wrote:
>
>2. The entire program has to fit into 2KB (two thousand and
>forty eight bytes) of ROM, and was written in assembly language and/or
>machine language and is understandable only to its author (Ken T.)
>It uses every last byte of memory. The 2KB
At 07:14 PM 2/22/2007 -0600, Jack Hudler wrote:
>LOL You're not alone!
>
>I haven't looked, do you know what the CPU is?
Without checking, I think it's a 6805.
--
newell
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At 06:45 PM 7/23/2011, Don Latham wrote:
than a client. I looked up man ntpd, and it seems at first glance to be
a Linux/Unix client that will sync up a local computer. I want to
generate a network server that ntpd or other clients can access. Perhaps
ntpd is the server.
--
newell N5TNL
_
At 04:50 PM 7/15/2011, Tom Van Baak (lab/iPad) wrote:
I've been told the NERC has decided to postpone their July 14
TEC-elimination test.
Sorry I don't have a URL with more information.
Their website has been updated:
http://www.nerc.com/page.php?cid=6|386
The TEC elimination field tests are
Here's the latest plot from my TEC test rigs. Y-axis is phase error
(in 60 Hz cycles), X-axis is time in MJD. The plot starts at 7AM local time.
http://n5tnl.com/tec/tec_test_01.png
Same serial connected embedded hardware, timestamped on the receipt
of first character. One machine (red line
At 05:00 AM 8/3/2011, Magnus Danielson wrote:
On 08/03/2011 11:19 AM, Attila Kinali wrote:
Could be a measurement error (like losing ticks or something).
Have you ploted the difference between both? For me it looks as
the difference is (nearly) linearly growing over time, but it's
hard to tell
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