I use a Fiber Optic Antenna Link FOL-100 from Truetime. However, I don't
know of anything else out there does something similar.
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Matthew Smith
Sent: Tuesday, March 04, 2008 3:36 AM
To: Discussion of precise
I found a site that has some great links on grounding.
http://www.n0hr.com/hamradio/152/10/ham_radio0.htm the link to
Choices and consequences of station lightning protection
http://members.cox.net/pc-usa/station/ground0.htm
is most excellent. I have implemented this (right down to common
Nova also did a show on him. Vaguely remember the title Search for
Longitude.
Try WGBH at pbs.org
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Brooke Clarke
Sent: Friday, February 22, 2008 3:36 PM
To: Discussion of precise time and frequency
http://www.pbs.org/wgbh/nova/longitude/
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Ah what I wouldn't give for a old TI 99xx BLWP (Bullwhip) Branch and Load
Workspace Pointer... NOT!
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and follow the
Steady boys and girls...
This discussion would be fun however, I get the feeling it would only supply
a marketing department with more copy.
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I use a Truetime NTS-100 for my NTP server.
Just scanned my network of Windows machines at home, all using MS NTP
Client. 3-Vista, 2-2003 Server, 1-XPSP2.
Worst 11 ms, average variance is 2ms.
Jack
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Keith
Well it can get rid of that nasty nose hair on that favorite photo, or
replace that lazy eye with one from the other side :).
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Magnus Danielson
Sent: Friday, December 28, 2007 8:01 AM
To: time-nuts@febo.com
other suggestions?
Date: Sat, 15 Dec 2007 21:25:14 -0600
From: Jack Hudler [EMAIL PROTECTED]
Subject: Re: [time-nuts] Upgrading possibilities for more accurate,
precise stable mark ii
To: 'Discussion of precise time and frequency measurement'
time-nuts@febo.com
Message-ID
John,
LOL, I was busy today doing just that!
Took an image of the IT8/7 target, printed it, scanning it in and
then using a color 'curves' in PhotoShop to adjust the scanned image to the
correct RGB values. Did it in 2 passes and by god it worked spot on every
time.
RGB
/WebCam2.shtml 24/7 Sky-Weather-Astronomy Cam
Jack Hudler wrote:
Way off topic:
I know we have a few Ex-HP employee's here, so this is a long shot.
But I would like to know the what paint was used by HP and there color
values or codes. I know they vary slightly from one lot/day/month/year
This assumes you have a calibrated scanner and a calibrated printer.
I don't have an IT8.7 target or its equivalent to calibrate the scanner.
Perhaps I should start there heck I'll just try and match it by eye.
Jack
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL
OOPS... once I loaded the right ICC profile for the scanner and the printer
it all works very nicely now.
Several orders of magnitude better!
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of phil
Sent: Wednesday, December 26, 2007 4:59 PM
To: Discussion of
Way off topic:
I know we have a few Ex-HP employee's here, so this is a long shot.
But I would like to know the what paint was used by HP and there color
values or codes. I know they vary slightly from one lot/day/month/year to
the next.
The reason I ask is, I'm completely redoing a couple
Boy that's a religious issue if I ever heard one!
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Rob Kimberley
Sent: Friday, December 14, 2007 11:42 AM
To: 'Discussion of precise time and frequency measurement'
Subject: Re: [time-nuts] ** SPAM ** Re:
If you have a porch or balcony, just drilled a 1/4 inch hole through the
edge of the sliding door frame to handle an external antenna. Hide the wire
in the carpet edge or behind the baseboard.
When you leave just caulk up the holes and no one's the wiser. Most of the
time (well the ones I lived
); SAEximRunCond expanded to false
Errors-To: [EMAIL PROTECTED] RETRY
Curious... did it cost you anything to sign up for this white list?
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of John Ackermann N8UR
Sent: Saturday, November 10, 2007 5:35 PM
To:
Not to be too blunt... but if I don't live near the Boeing Surplus store,
why should I care?
Better solution would be to have them put it up on eBay for all to see and
for Boeing to benefit.
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To
); SAEximRunCond expanded to false
Errors-To: [EMAIL PROTECTED] RETRY
Mike,
I've got the time right now (job hunting) to scan it in a
non-destructive fashion.
Though cutting off the back will make scanning easier, it might be
possible to re-bind it. Some places like Kinko's have
); SAEximRunCond expanded to false
Errors-To: [EMAIL PROTECTED] RETRY
http://www.hparchive.com/Manuals/HP-10811AB-Manual.pdf
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time and frequency measurement
Subject: Re: [time-nuts] 10811A
On Fri, 14 Sep 2007 11:19:21 -0500, Jack Hudler [EMAIL PROTECTED]
wrote:
http://www.hparchive.com/Manuals/HP-10811AB-Manual.pdf
Also:
http://www.febo.com/time-freq/hardware/HP10811-Specs.pdf
); SAEximRunCond expanded to false
Errors-To: [EMAIL PROTECTED] RETRY
When you find yourself writing 80 KC instead of 80 KHz.
Jack
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); SAEximRunCond expanded to false
Errors-To: [EMAIL PROTECTED] RETRY
LOL!!!
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of James Maynard
Sent: Thursday, September 06, 2007 3:20 PM
To: 'Discussion of precise time and frequency measurement'
Subject: Re:
); SAEximRunCond expanded to false
Errors-To: [EMAIL PROTECTED] RETRY
Sure sign of dyslexia :-)
I heard that!!! :)
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and
on Ethernet
From: Jack Hudler [EMAIL PROTECTED]
Subject: RE: [time-nuts] Timing on Ethernet
Date: Fri, 3 Aug 2007 20:57:12 -0500
Message-ID: [EMAIL PROTECTED]
Thanks Magnus, I guess I was dating myself :).
Jack, no worries! :-)
Pablo, is this going to be used for timing throughout the entire
measurement
Subject: Re: [time-nuts] Timing on Ethernet
Thinking outside the square
What you need is a low frequency transmitter exactly in the middle of
the ring...
Neville Michie
On 05/08/2007, at 5:01 AM, Jack Hudler wrote:
I was thinking of timing protocol only without any Ethernet
Tell me your in the Dallas area and need help!
-Original Message-
From: Magnus Danielson [mailto:[EMAIL PROTECTED]
Sent: Saturday, August 04, 2007 7:31 PM
To: time-nuts@febo.com; [EMAIL PROTECTED]
Subject: Re: [time-nuts] Timing on Ethernet
Well, guess what I do for a living...
Cheers,
); SAEximRunCond expanded to false
Errors-To: [EMAIL PROTECTED] RETRY
One thing that comes to mind, though I may be missing something here.
Ethernet is CDMA/CA; would you not loose phase lock during a collision
because of a corrupted carrier?
___
); SAEximRunCond expanded to false
Errors-To: [EMAIL PROTECTED] RETRY
Thanks Magnus, I guess I was dating myself :).
Pablo, is this going to be used for timing throughout the entire CERN site
or just instrumentation on 27km LHC?
If it's just the LHC then what about using an open fiber/copper
); SAEximRunCond expanded to false
Errors-To: [EMAIL PROTECTED]
Rich people generally live longer because they do 'rich people' stuff...
Live below there means, save, don't use credit; which reduces stress.
Poor people on the other hand, do 'poor people' stuff, like run up credit
cards, borrow
); SAEximRunCond expanded to false
Errors-To: [EMAIL PROTECTED]
Who was it that said; every clock is a thermometer?
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Dr Bruce Griffiths
Sent: Monday, July 16, 2007 8:31 PM
To: Tom Van Baak; Discussion of
No to make too light of the situation; isn't being on AOL's ban list a badge
of honor?
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of John Ackermann N8UR
Sent: Friday, June 29, 2007 8:54 PM
To: Discussion of precise time and frequency measurement
Like $100 for 5370B and the only thing wrong was the oscillator switch set
to EXTernal.
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Mike Feher
Sent: Saturday, June 09, 2007 5:33 PM
To: 'Discussion of precise time and frequency measurement'
Subject:
On the positive side: there could be some very nice stuff on the surplus
market post-mortem.
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Jason Rabel
Sent: Friday, June 08, 2007 7:56 PM
To: 'Discussion of precise time and frequency measurement'
That why I snatched up a FOL-100 on eBay some years ago.
This extends the antenna using a fiber optic link and the antenna is power
from a solar cell/battery setup.
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of [EMAIL PROTECTED]
Sent: Sunday, June 03,
Try this; http://www.hparchive.com/Manuals/HP-10811AB-Manual.pdf
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Arnold Tibus
Sent: Monday, May 21, 2007 9:30 AM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Oscillator
It might be RS-485 and so multiple displaies could have its own address on a
multidrop setup.
About the only trick there is finding out if its 2 or 4 wire 485 (probably 2
because of the address).
Think I've seen some USB to 485 converters on the market, but you might get
away with driving it with
Nicely said! Beats my caustic thoughts!
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Joseph Gray
Sent: Thursday, May 17, 2007 12:35 AM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] NTP problem on Windows
I use Linux
?
thanks,
BillWB6BNQ
Jack Hudler wrote:
Try scanning at 300 DPI grayscale (400 max, anything more is a
waste). Do not use the histogram or descreening functions in your scanner
software unless you spent some serious dollars. All descreening really
does is increase the actual
You'd get the same results in the end, only now you've added projection
reconstruction.
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Palfreyman, Jim L
Sent: Monday, May 14, 2007 12:44 AM
To: Discussion of precise time and frequency measurement
Subject:
Try scanning at 300 DPI grayscale (400 max, anything more is a
waste). Do not use the histogram or descreening functions in your scanner
software unless you spent some serious dollars. All descreening really
does is increase the actual scanning resolution up to 2 times what you asked
for
Well that's a crock! I had my one and only Nixie tube clock doing that back
in 2001 using a basic stamp and hack together Ethernet module.
Talked to an NTS-100's configuration port at first then found the Ethernet
module.
It has since met its demise and I'm sure I wasn't the first either.
Now that's a thing of beauty It just went on my list of things to have
before I die!!! :)
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Maggie Leber
Sent: Tuesday, May 08, 2007 11:02 AM
To: Discussion of precise time and frequency measurement
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
Behalf Of Jack Hudler
Sent: Tuesday, May 08, 2007 5:37 PM
To: 'Discussion of precise time and frequency measurement'
Subject: Re: [time-nuts] NTP Synchronised Nixie Tube Clock
Now that's a thing of beauty It just went
Just please tell me they're not serrated, know how to use a steel, and you
keep them holder or leather pouch.
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Rasputin Novgorod
Sent: Friday, April 20, 2007 8:19 AM
To: Discussion of precise time and
Followed no doubt by; global cooling! :) couldn't resist.
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Brooke Clarke
Sent: Wednesday, April 04, 2007 8:12 PM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Solar Bursts
I HAVE GOT TO GET ME ONE OF THESES!!!
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Joseph Gray
Sent: Saturday, March 31, 2007 3:42 AM
To: Discussion of precise time and frequency measurement
Subject: [time-nuts] Anti-time-nuts clock
When close enough
[EMAIL PROTECTED]
To: Discussion of precise time and frequency measurement
time-nuts@febo.com
Sent: Thursday, March 22, 2007 5:34 PM
Subject: Re: [time-nuts] HP 5370A Frequency counter Problem(s)
Jack Hudler wrote:
On HP gear, I used a tire cleaner (Eagle something).
It's the only thing I
and the phrase 5370A UNIVERSAL TIME INTERVAL COUNTER. The
back side looks like it was silkscreened in black.
- Original Message -
From: Jack Hudler [EMAIL PROTECTED]
To: 'Discussion of precise time and frequency measurement'
time-nuts@febo.com
Sent: Friday, March 23, 2007 10:09 PM
Subject: Re
On HP gear, I used a tire cleaner (Eagle something).
It's the only thing I found that removes that cigarette tar stain
Note: make sure any stickers and goo from stickers are gone before tire
cleaner.
Then I polish the face with rubbing compound or touch up areas with paint
and coat with a
It been mentioned here before;
http://www.febo.com/pipermail/time-nuts/2004-September/017484.html
It's a book about Alfred Loomis.
I remember (forgive my old memory) reading about his use of 3 pendulum
clocks and his discovering that varying the proximal distances had an effect
on drift.
Jack
It looks like this
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemitem=280095458978
If it doesn't look very similar to this, buy this one and have done with it!
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Neville Michie
Sent: Tuesday, March 20, 2007
It seems to me that like all good things they must come to and end.
If all CBTs have a life expectancy that varies depending on the
manufacturer.
What are we going to do when all the CBTs owned by amateurs start to end of
life?
I for one am certainly not going to buy one, not at those prices!
01915
[EMAIL PROTECTED] (Business)
[EMAIL PROTECTED] (Personal)
(978) 232-1461 (Desk)
(339) 927-7896 (Mobile)
(978) 927-4099 (FAX)
-- Original message --
From: Jack Hudler [EMAIL PROTECTED]
It seems to me that like all good things they must come to and end
LOL You're not alone!
I haven't looked, do you know what the CPU is?
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Scott Newell
Sent: Thursday, February 22, 2007 6:12 PM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts]
the source...
Jack
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Scott Newell
Sent: Thursday, February 22, 2007 7:21 PM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Fine print on HP 5334B
At 07:14 PM 2/22/2007 -0600, Jack
I once found a $18000 telescope and promptly wrote out a check for the $1100
dollar price tag.
My hand was shaking on that one. I was so scared someone was going to out
me. :)
Jack
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Rich and Marcia Putz
Make sure you're seated, in an upright position, and have your wallet stowed
in a protected area prior to opening that RFQ reply.
That is if you even get one!
:)
Jack
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Bill Hawkins
Sent: Monday, February
- Original Message -
From: Jack Hudler [EMAIL PROTECTED]
To: 'Discussion of precise time and frequency measurement'
time-nuts@febo.com
Sent: Friday, January 26, 2007 12:09 PM
Subject: Re: [time-nuts] Odd request
It is elegant! Was that the XYL's opinion?
-Original Message-
From
of the second hand.
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemitem=110081232209
But how how to connect it?
Have Fun,
Brooke Clarke
w/Java http://www.PRC68.com
w/o Java http://www.pacificsites.com/~brooke/PRC68COM.shtml
http://www.precisionclock.com
Jack Hudler wrote:
There are some clocks
If you send me the raw images Greyscale (not BW) 300 DPI or better, I'll put it
up on hparchive.com
Jack
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
Of Bruce Lanning
Sent: Wednesday, January 24, 2007 9:41 AM
To: Discussion of precise time and frequency
If you do solder it, wrap the wire at least 4 turns starting at the bottom, then
clip a pair of forceps or needle nose pliers for a heat sink on the start turn.
Then only solder the end of the wire on the terminal (There's a NASA procedure #
for this method, but that was another space, time and a
: Re: [time-nuts] HP 58517A Distribution Amp
Jack Hudler wrote:
If you send me the raw images Greyscale (not BW) 300 DPI or better, I'll put
it
up on hparchive.com
Jack
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
Of Bruce Lanning
Sent: Wednesday
It's probably the thermistor. What model are you playing with?
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
Of Jason Rabel
Sent: Monday, January 22, 2007 5:16 PM
To: 'Discussion of precise time and frequency measurement'
Subject: [time-nuts] 10811 Repair
Jason,
Do me (and others) a favor and take some good pictures. Especially if
you can get one with it all unfolded (like page 63) I'll fix/sitch it up in
photoshop.
Jack
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
Of Jason Rabel
Sent: Monday,
http://www.hpl.hp.com/techreports/1999/HPL-1999-6.pdf
See page 2
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
Of Rick Karlquist
Sent: Sunday, January 21, 2007 9:40 PM
To: Discussion of precise time and frequency measurement
Cc: Discussion of precise time
DUH! You wrote it Rick! LOL!
http://www.hpl.hp.com/techreports/1999/HPL-1999-6.pdf
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Could physical damage to the crystal account for this deviation?
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
Of Rick Karlquist
Sent: Saturday, January 20, 2007 11:51 AM
To: Discussion of precise time and frequency measurement
Cc: time-nuts@febo.com
Count the number of oscillations between the 1PPS, that will get you 1x10-7 any
thing more you'll need an oscilloscope to see the phase crossing.
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
Of Richard W. Solomon
Sent: Saturday, January 20, 2007 3:17 PM
Made'm red just for ya in the updated 10811 manual
DO NOT OPERATE THE OVEN CIRCUITS WHEN THE OVEN MASS IS OUTSIDE OF THE OSCILLATOR
INSULATED HOUSING. DOING SO WILL OVERHEAT THE OSCILLATOR CIRCUITS INSIDE THE
OVEN MASS AND CAUSE PERMANENT DAMAGE. ALL OVEN TEST POINTS ARE AVAILABLE WITH
THE OVEN
Sounds like; It's all fun and games until someone gets hurt... then it's just
fun.
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
Of Poul-Henning Kamp
Sent: Wednesday, January 17, 2007 2:49 PM
To: Discussion of precise time and frequency measurement
Just checked an she had a bunch of those that didn't sell. She hasn't relisted
them... interesting.
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
Of Tim Shoppa
Sent: Monday, January 15, 2007 6:58 PM
To: time-nuts@febo.com
Subject: Re: [time-nuts] Bad batch
Who sold them?
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
Of Mark Amos
Sent: Sunday, January 14, 2007 1:41 PM
To: time-nuts@febo.com
Subject: [time-nuts] Bad batch of HP10811's
Time-nuts,
Seems like a bad batch of HP10811's was dumped on e-bay over
Yep I'm looking at it right now and yes it has eyelets.
http://www.hudler.org/pub/IMG_4586.JPG
Jack
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
Of Jason Rabel
Sent: Saturday, January 13, 2007 10:46 AM
To: 'Discussion of precise time and frequency
I'm about to update the HP-10811AB-Manual.pdf on hparchive.com with new part
numbers for the connectors (eyelets, straight, and 90 degree).
If anyone has any additional information they want added, chime in!
Thanks,
Jack
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL
Good stuff thanks!
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
Of Christopher Hoover
Sent: Saturday, January 13, 2007 1:22 PM
To: time-nuts@febo.com
Subject: Re: [time-nuts] HP 10811-60155 pinout
(This info may be in the archive, I think, but maybe it
I should have mentioned that 10 pin header on 8 pin socket thing.
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
Of Jason Rabel
Sent: Saturday, January 13, 2007 4:12 PM
To: 'Discussion of precise time and frequency measurement'
Subject: Re: [time-nuts]
Doesn't surprise me... what amazes me is the amount of money she passes up by
not using Paypal.
Look here; http://www.hparchive.com/Manuals/HP-10811AB-Manual.pdf the pinouts
are the same. Additional information is on
http://www.febo.com/time-freq/hardware/HP10811-Specs.pdf
The connector is an
Heck I would be grateful for a service manual for my Tektronix 2246. One doesn't
seem to exist.
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
Of Jason Rabel
Sent: Wednesday, January 10, 2007 10:50 AM
To: 'Discussion of precise time and frequency
: [time-nuts] Jack Hudler
Randy Warner said the following on 01/02/2007 03:55 PM:
The following recipient(s) could not be reached:
Jack Hudler on 1/2/2007 12:45 PM
There was a SMTP communication problem with the recipient's
email server. Please contact your system
Well he hasn't any pictures (just ask for some).
Does anyone know what the output frequency is?
What shape the Rubidium would be in?
Thanks,
Jack
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
Of Bill Hawkins
Sent: Tuesday, December 26, 2006 10:06 PM
To:
that command
and how you get the data depends on the GPIB adapter you have, and the
user level software you are using. And that can get complicated.
I refer you to my GPIB page at
http://www.ko4bb.com/Test_Equipment/GPIB.html
for some practical info on GPIB.
Didier KO4BB
Jack Hudler wrote:
One
Your manual 2934 covers the 2804 series and the 2804 definitely contains fixes
made in the 2704. Otherwise it would state that the 2804 requires this change.
If you use a manual that cover everything up to an including 2804, then you
wouldn't know if any later fixes might have solve an issue
Knew there was something I liked about Ulrich!
Laphroaig! I have a 30 and 40 in my collection... waiting for an excuse to open
my 40.
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YOU have a 10811D that worn out? How did you determine this?
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
Of Cornell
Sent: Thursday, December 21, 2006 4:05 PM
To: time-nuts@febo.com
Subject: [time-nuts] Getting started on Shera project
I am new to the
The Timer/Clock interrupt is IRQ 0 no other interrupt has a higher priority,
therefore this interrupt is rarely missed. If it were missed then interrupts
would have to be turned off longer the 110ms (2 times the clock rate) which is
an enormous amount of time and due no doubt to an improperly
Probably what to take this off list.
Eek screen capture. That's one of those heart stoppers on the Win9x platforms,
it's got nothing to do with Windows, it the device driver in some of those old
cards that CLI (Clear interrupts) for a long period. We had issues with this
causing Netware Client's
never know and I doubt they care.
Jack Hudler
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
Of Charles S. Osborne
Sent: Tuesday, December 19, 2006 8:02 PM
To: Time-Nuts
Subject: [time-nuts] PC clock comparison software?
I have a query. Does anyone have
That's exactly what I use mine for.
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
Of Jason Rabel
Sent: Sunday, December 17, 2006 4:59 PM
To: 'Discussion of precise time and frequency measurement'
Subject: Re: [time-nuts] Looking For Info On A
I flipped em... didn't free run for me.
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
Of Jason Rabel
Sent: Saturday, December 16, 2006 4:06 PM
To: time-nuts@febo.com
Subject: [time-nuts] Looking For Info On A Kode/Odetics 375-642 Time DisplayUnit
Now you
Can someone explain the accuracy numbers that are represented in specs for GPS
receivers?
I find that Trimble says the Resolution T
(http://www.trimble.com/resolutiont.shtml) has 15 ns (1 Sigma) like the M12+.
So I guess the real question is; are you comparing apples to apples when the
If I'm totally missing something here please correct and enlighten me.
On the subject of Brooks Shera's design, the one thing that troubles me is the
use of a 24 MHz oscillator to count the width of the 1PPS signal.
This yields a precision of 4.16e-8, but does it really?
This oscillator is
Ah I too wondered about the 10kHz output and wince it came.
One phase lock circuit being sold on eBay uses this by dividing it down to 1
PPS.
Perhaps he wanted to save one 74HC390.
Still I wonder what the precision cost is?
Jack
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL
That's essentially the same circuit.
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
Of Jason Rabel
Sent: Wednesday, December 13, 2006 9:07 PM
To: 'Discussion of precise time and frequency measurement'
Subject: Re: [time-nuts] motorola oncore descriptions
I
Many thanks for the long post!
You validated many of my concerns about the current state of amateur GPSDO's.
Thanks again,
Jack
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Bruce,
Can you describe further your idea about phase detection using an ADC.
Who produces the sinewave from the filtered counter?
(Thinking out loud) Using a 10MHz oscillator as an example:
Is this dividing the clock down to (say) 1 MHz and using a square-sine
conversion then sampling the
Yeah just think of the environmental impact or the impact of the environmental
protection agency; which ever is greater. :)
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
Of Didier Juges
Sent: Saturday, December 09, 2006 5:41 PM
To: Discussion of precise
The oscillator in the Truetime NTS-100 is a CTI K1525AA 10MHz.
I want to see if I can drive a IsoTemp OCXO134-10 or 10811D directly but I need
some spec in order to determine if the DAC has enough range to handle it.
Any help?
Thanks,
Jack Hudler
Anyone else besides me pick up one of these yet?
I'd be interested in what you found.
Thanks,
Jack
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Another GPSDO for me OR
It's easy to add a Web Server (PINK) to a Parallax Javelin (or Basic) stamp
module.
So I think I'll start an NTP server project... why? Cause my NTS100 will end of
life itself by 2010 due to a firmware issue (If I recall, please correct me if
I'm wrong or you've
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