C... was thinking of using thermal epoxy to hold it down and then
putting some insulating material (suggestions) on top of it.
--
Doc
Bill Dailey
KXØO
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(and the other way
around if the current decreases).
On Thu, Oct 18, 2012 at 12:47 AM, Rick Karlquist rich...@karlquist.comwrote:
Bill Dailey wrote:
If I wanted to try to compensate for temperature variation of my OCXO...
where would I attach a thermistor? What would be a good method
Had some interesting times with the HP-113B clock, but had to
mount it in an insulated cabinet with an insulated door because
it made so much 1 KHz mechanical noise. No wonder the housing
for the assembly is so heavy.
Did they find a quieter motor for the 115B?
Bill Hawkins
-Original
is 10^12.
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Bill Dailey
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of his spots. Now tells
his customers that any GPS receivers found will be float tested by
throwing them overboard.
Bill Hawkins
-Original Message-
From: Chris Albertson
Sent: Wednesday, October 03, 2012 9:27 AM
On Tue, Oct 2, 2012 at 9:40 PM, Ron Ward n6idl...@comcast.net wrote:
Hi
to 0ns. Higher
values push faster.
If your ocxo is still drifting (aging and or retrace) it will take about 48
hours for the aging measurement and correction to kick in, and bring the
offset down to 0ns.
Bye
Said
Sent From iPhone
On Oct 3, 2012, at 3:46, Bill Dailey docdai...@gmail.com
Maybe a dumb question. Just got my new oscillator hooked up to my Fury board.
Using the z38xx program of Ulrichs. Can someone help me wrap my head around
the pps TI /s? It seems to be confusing me. May dovetail into the counter
thread.
Doc
KX0O
Sent from mobile
I am ok for awhile but how do you center the efc of an ocxo? I understand
there is something (screw) to adjust the ocxo so it is approximately on freq
with 2.5v efc.
Specific oscillator datum-c. I have he datasheet but doesn't say coarse
frequency adjust this screw or some such.
Doc
KX0O
On Oct 1, 2012, at 4:45 AM, Javier Herrero jherr...@hvsistemas.es wrote:
El 01/10/2012 11:22, Hal Murray escribió:
t...@westwood-tech.com said:
information appeared to be non-existent. IMHO for pretty much *everything*
that is for sale, if you have to ask for the price it is a scam.
Yes,
That isn't bad
Sent from my iPhone and Hunter Lambert is my hero!
On Oct 1, 2012, at 11:27 AM, Don Latham d...@montana.com wrote:
Hello Hal and all:
Here's the answer I got:
Don,
A single unit would set you back $465.00 and delivery would be in the
region of 6
weeks.
Best Regards
Well over 1000. Can still buy them
Sent from my iPhone and Hunter Lambert is my hero!
On Oct 1, 2012, at 11:53 AM, Chris Albertson albertson.ch...@gmail.com wrote:
On Mon, Oct 1, 2012 at 9:27 AM, Don Latham d...@montana.com wrote:
A single unit would set you back $465.00 and delivery would
/time-nutshttps://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.
--
Doc
Bill Dailey
KXØO
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I think the usually quote worse case.
Sent from my iPhone and Hunter Lambert is my hero!
On Sep 30, 2012, at 12:03 PM, Hal Murray hmur...@megapathdsl.net wrote:
j...@febo.com said:
My recollection was a bit off -- we saw about 22ns on the two-port 58535a
and about 15ns on the 8-port
Bert,
When you do tests like this, how long do you let the oscillators settle prior
to testing?
Doc
Sent from my iPad
On Sep 30, 2012, at 4:23 PM, ewkeh...@aol.com wrote:
Rick
I have some 10811's all below 1 E-12 in the 1 to 100 sec. range, a few as
low as 4 E-13 at 10 seconds. How low
I have a corby ocxo (datum-c) that I am coupling with a fury oem board soon
(need some connectors). I wish someone with good measurement equipment lived
nearby. I would like to measure this vs my standard fury. I think the ocxo is
mid 10-13 at 1s. Anybody near Kansas City?
Doc
Sent
I don't think it is legal to prohibit flag poles
Sent from my iPhone and Hunter Lambert is my hero!
On Sep 28, 2012, at 8:16 AM, Bob Camp li...@rtty.us wrote:
Hi
Flag poles are prohibited.
Bob
-Original Message-
From: time-nuts-boun...@febo.com
the cap.
Tested the cap in a microwave oven, stayed cool. Didn't use
it, though, got a HP conical outdoor antenna instead.
Why would you want to attenuate the precision of the time
signal by 6 db? The caption says, Precision Attenuator. :-)
Bill Hawkins
Nice job George
73,
Bill, WA2DVU
Cape May, NJ
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There is a comma in equipment messing that link up
Sent from my iPad
On Sep 28, 2012, at 7:54 PM, jim s j...@jwsss.com wrote:
There is a space after 49em which messes up a copy if you don't watch out.
I tried bitly and and tinyrul couldn't get it to work with the contracted
link. They
dormitories for the 50% of workers made redundant by
automation
around 2050. Would like to get it into the book if I had a reference.
Note the use of a time in the future to stay near topic.
Bill Hawkins
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What is the port to port isolation and price
Sent from my iPad
On Sep 6, 2012, at 2:21 AM, Gaudin Luc lgau...@naelcom.com wrote:
Hello,
We have a product that have been specially design for these : NGA-DIS
http://naelcom.fr/app/download/5788490907/Data+sheet+NGA-DIS+V1.0.pdf
Regards,
going right to another audio channel? Or maybe a
real filament transformer instead of a wart.
Who knew you could find so much interesting stuff on the power
line . . .
Bill Hawkins
P.S. I think the mild flattening of the sinusoid peaks is
caused by saturation of the barely-enough-iron
Firefox is notorious for screwing up audio in windows. I have had OS of
problems with this. I actually think its something o o with networking.
Sent from my iPad
On Sep 1, 2012, at 5:16 PM, Chuck Forsberg WA7KGX N2469R c...@omen.com wrote:
On 09/01/2012 02:17 PM, Magnus Danielson wrote:
On
be a challenge for a reconfigurable network.
Bill Hawkins
-Original Message-
From: Raj
Sent: Monday, August 27, 2012 10:18 AM
From Elektor, Sept. 2012
https://dl.dropbox.com/u/10377704/Mesh%20EE.jpg
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Does someone have a list of the options that are not listed in the
PTS catalog?
Bill wa4lav
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The PRS10 by SRS has serious shortcomings at short tau. I don't
understand why but there is a huge hump in the adev. That's why I avoided one.
Sent from my iPhone
On Aug 23, 2012, at 10:42 AM, paul swed paulsw...@gmail.com wrote:
OK have been staying clear of the replies.
Thats a lot
data? If you made
the measure, what reference clock did you use? I have (at work, in another
department) a new PRS10, hope to get it back...
On Thu, Aug 23, 2012 at 6:00 PM, Bill Dailey docdai...@gmail.com wrote:
The PRS10 by SRS has serious shortcomings at short tau. I don't
understand
Bill Dailey
KXØO
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...
On Thu, Aug 23, 2012 at 6:00 PM, Bill Dailey docdai...@gmail.com wrote:
The PRS10 by SRS has serious shortcomings at short tau. I don't
understand why but there is a huge hump in the adev. That's why I
avoided
one.
Sent from my iPhone
On Aug 23, 2012, at 10:42 AM, paul swed
Who said that?
Sent from my iPad
On Aug 23, 2012, at 2:56 PM, paul swed paulsw...@gmail.com wrote:
I am reading thread and getting a good chuckle in a lot of respects.
SRS good or bad humps and bumps.
Then it hit me. I have a HP5065a and its great.
But, someone here is willing to buy it for
(please don't assert NTP
Stratum 0 to the Internet with a rig put together from eBay parts), then
the cable delay is a miniscule phase shift between you and reality.
Bill Hawkins
-Original Message-
From: Sarah White
Sent: Tuesday, August 21, 2012 11:53 AM
Wow. Okay. The user manual actual
I will jump in a bit. I, and many have been right where you are. You are
correct...USB is a no go for accurate time. Same on windows. So you need a
Linux box with serial port. Anything from a Beaglebone, pandabox...or pc will
work. You certainly need a gps with a pulse per second output
is this the current
time (as was when the sentence was constructed) or the time at the next PPS
'tick'?
Thanks in advance.
KenD
On 19/08/12 11:23, Bill Dailey wrote:
I will jump in a bit. I, and many have been right where you are. You are
correct...USB is a no go for accurate time. Same
I have a soekris box but got hung up on the compact free bsd install. Wish I
had more time to get a handle on that. I am certain the thing would be hard to
beat power wise and it is all in one nice tidy box.
Doc
Sent from my iPhone
On Aug 19, 2012, at 12:38 PM, Chris Albertson
On a budget get a thunderbolt... If you want plug and play get a Jackson labs
Fury. I have my fury hooked up to small Ubuntu box and have a nice ntp server
as well as a great reference. Also, read, read, and read some more.
Doc
KX0O
Sent from my iPad
On Aug 17, 2012, at 8:12 PM, Frank
changed for more A/C load.
I expect you'd rather do things in software, but the mechanical
solution is to couple a synchronous motor to a flywheel marked with
60 Hz lines for photocell pickup. A precision 33 1/3 rpm turntable
with strobe markings would work very well.
Bill Hawkins
-Original
Said,
How much for the eval unit? Also, could I use this with my own ocxo?
How much with your docxo ans what are the specs?
Doc
KX0O
Sent from my iPad
On Aug 4, 2012, at 11:52 PM, saidj...@aol.com wrote:
Hello everyone,
we have our Trimble Mini-T(tm) replacement unit up and running now,
.
But, long ago a pF was mmfd. OK that is milli-milli-femto-deci today
oops, no units.
And there was kilomegacycles for GHz.
73
Bill wa4lav
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Does anyone have plots of true frequency variation of their 10 MHz standards
over days? I am trying to see if what I am seeing is typical or if I need to
get a better antenna/gpsdo tuning/temp control. Right now I am on vacation so
am capturing data under much warmer than normal temps (ac
is the GPSDO and not the precision oscillator,
or your comparator?
/tvb
- Original Message -
From: Bill Dailey docdai...@gmail.com
To: Time Nuts time-nuts@febo.com
Sent: Tuesday, July 31, 2012 5:27 PM
Subject: [time-nuts] GPSDO diurnal variation
Does anyone have plots of true
: Bill Dailey docdai...@gmail.com
To: Time Nuts time-nuts@febo.com
Sent: Tuesday, July 31, 2012 5:27 PM
Subject: [time-nuts] GPSDO diurnal variation
Does anyone have plots of true frequency variation of their 10 MHz standards
over days? I am trying to see if what I am seeing is typical
: Re: [time-nuts] HP 3586B Selective Level Meter
I ordered a BCJ-VWP adapter from Markertek.
A week and $18 later it shows up but does not fit my 3586B.
It is too fat to go into the connector on the HP, and the center pin is way
too fat..
On 07/19/2012 04:48 AM, Bill Riches wrote:
Purchase
I did install a bnc connector for input - pain - it took a few hours. Save
yourself a lot of grief and purchase a Canare bcj-vwp bnc adapter from
Markertech or others. Works fine.
Bill Riches, WA2DVU
Now that I have my new [30 year old] HP 3586 making measurements over the
GPIB bus I have
of your zero-crossing
detector.
73
Bill wa4lav
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Purchase the Canare BCJ-VWP adapter from Martertech or other suppliers.
Bill Riches, WA2DVU
Cape May, NJ
-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of Chuck Forsberg WA7KGX N2469R
Sent: Thursday, July 19, 2012 2:22 AM
To: time-nuts
signal.
73
Bill wa4lav
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Removed the oscillator and send it the required freq (24.576MHz) that is
disciplined to 10MHz. Put an sma connector next to the card in the little
cover on the pci slot. Currently using my ds345 but am getting a Valon
Synthesizer board with a divider. Tried ve1alq but the dividers aren't
and have phase stable audio in spectrum
lab without any calibration which is what I was trying to achieve. Also,
it seems to make the audio better when listening to music although I can't
verify this claim and don't want to start another audiophile thread.
--
Doc
Bill Dailey
KXØO
Yes, that i know. Just don't have the wherewithal to implement that myself.
The integer greatest common divisor 10MHz/25.576MHz is 16KHz so a simple
PLL should go through that frequency.
Sent from my iPhone
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blaster to program
it. I presume the .jed is the code? I can solder for sure. Would I be
able to look at the code so I can learn something?
--
Doc
Bill Dailey
KXØO
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Tristan.. I tried to contact you during my searches and I couldn't get
through.. something to do with the captcha. Your project is the only one I
saw that seemed applicable. I would like to know your progress.
--
Doc
Bill Dailey
KXØO
___
time-nuts
the instructions there.
Yes do upload it. I have some Fetrons and want to know what they
replace. And in my other life, I ordered some custom Fetrons
to replace some WE tubes that was used in WE K carrier. If you don't
upload it, send a copy.
Bill K7NOM
affect my Adev at short time intervals of say 1s to
30s or can these numbers be trusted?
Thanks for your time. Please save esoteric and playful discussions, just
interested in the ability to trust my measurements.
Doc
KX0O
--
Doc
Bill Dailey
KXØO
may be viewed directly
when local time does not matter.
It works for trending analog process data in manufacturing plants
that observe seasonal time (not all US states do).
Bill Hawkins
P.S. During the manufactured oil crisis of 1974, that started us on
the path to multinational corps
on anyone? This means keeping the media out of it. Else,
we are condemned to repeat history, in the Santayanan sense.
Bill Hawkins - who would like to declare independence of time, but his
body won't let him.
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Does the leapsecond get added just once (GMT time zone) or does it happen in a
staggered fashion at the same hh:mm:ss within each timezone?
Thanks,
Bill
On Jun 29, 2012, at 10:54 AM, Mike S mi...@flatsurface.com wrote:
On 6/29/2012 2:46 AM, Hal Murray wrote:
That's Friday, the 29th
I'm guessing it's just added at one instant - to UTC.
Regards,
Bill
On Jun 29, 2012, at 1:55 PM, Bill Powell bill...@bellsouth.net wrote:
Does the leapsecond get added just once (GMT time zone) or does it happen in
a staggered fashion at the same hh:mm:ss within each timezone?
Thanks
Guys,
I am looking for info on injection locking. I have been searching around for
info. I found an article that probably answers my question but I can't get to
it.
http://www.oldcitypublishing.com/FullText/JAPEDfulltext/JAPED2.1fulltext/11-24pp%20GC05-06%20%28Rajput%29.pdf
Can anyone
.
Bill Hawkins
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I thought this may be of some interest.
http://shop.sysmocom.de/products/osmo-lea6t-gps
Doc
KX0O
Sent from my iPad
Sent from my iPad
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is that you learn something new every day.
Who would have dreamed that watches could be affected too.
Bill Hawkins
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and follow
or a memory IC with the battery built in, That
voltage should be 3 Volts. I had a SUN computer
with that battery problem and the instructions was on the web, how cut
into the IC and wire an external battery.
I glued a coin cell to the top of the IC
Bill K7NOM
On Sat, May 26, 2012 at 9:23 PM, paul
Jenny Craig?
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and skim it to find the interesting
bits, then read them and let the rest go to an Outlook archive.
I have trouble throwing away things that might be useful some day.
Bill Hawkins
-Original Message-
From: Hal Murray
Sent: Monday, May 07, 2012 10:45 PM
To: Discussion of precise time
Does anyone have any knowledge of a simple (just soldering a few connections
and maybe programming a hz/volt rate) PCB for synchronizing a precision OCXO to
a GPSDO? I am trying to improve short term stability with a high stability
OCXO and dont want to cut into my fury and replace the OCXO.
engineers.
--
Doc
Bill Dailey
KXØO
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, but that is not the case here.
Still, I think there is value in using a long sampling time for
the control action.
Comments accepted with enthusiasm.
Bill Hawkins
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oscillators affect the
settling time?
It is not useful to make the next change before the last one
is complete, at least for sampled systems. Using counters
filters the change rather than taking a sample.
Bill Hawkins
-Original Message-
From: Magnus Danielson
Sent: Sunday, May 06, 2012
Swiss-made? FEI 5660? PRS10? US $5,995? Oh, dear indeed.
Nice to know the fiscal predators have predators to bite 'em.
Bill Hawkins
-Original Message-
From: Jim Palfreyman
Sent: Sunday, May 06, 2012 9:40 PM
To: Discussion of precise time and frequency measurement
Subject: [time-nuts] Oh
I have wondered the same thing.
Doc
KX0O
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Rasberry pi appears to have fallen victim to poor pre market research.
Essentially vapor for now. Don't know when you can get one. I have been
looking to get one since march. RadioShack carries arduino.
Doc
KX0O
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heavy on my hands.
Bill Hawkins
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, that, amidst the noise about Chinese scopes.
Might want to fix the certificate so unsubscribers can do so.
OB timenuts: Time marches on.
Bill Hawkins
-Original Message-
From: Roy Phillips
Sent: Wednesday, April 18, 2012 12:39 PM
To: time-nuts@febo.com
Subject: [time-nuts] To remove membership
the wind dies down. Yes, the sewer gases can
be sucked out of the sewer, and sniffed in the breeze on the ground
or deck below and downwind of the vent.
Burt is right. Time marches on.
Bill Hawkins
-Original Message-
From: Burt I. Weiner
Sent: Sunday, April 15, 2012 8:45 PM
To: time-nuts
Why not do this... Should be cheaper and offer better performance.. Especially
short tem.
http://www.jrmiller.demon.co.uk/projects/ministd/manual.pdf
Doc
KX0O
Sent from my iPad
On Apr 14, 2012, at 8:11 PM, time-nuts-requ...@febo.com wrote:
Opinion Of Attached - Possible HPSDR GPSDO
Are the Jupiter GPS engines still available?
Don't know but if I was doing it today I would use the ublox timing receiver or
the Motorola timing equivalent and a good sc-cut docxo and build it. Of course
I don't have the know-how but it would be an incredible open source build that
I would
for lead-ins are still a very good investment.
Bill Hawkins
PS- The worst explosion I remember there was the day a new technician
took a few pounds of scrap powder to the burning grounds. It was
supposed to be mixed with ten times as much sawdust to make it burn
instead of detonate. He got
GA-30 will work?
73,
Bill, WA2DVU
Cape May, NJ
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, but I don't have time to play with
operating systems that are constantly being improved. I tried Ubuntu
and went back to Microsoft.
Then again, I'm leery of things that show up on April First.
Bill Hawkins
-Original Message-
From: Ed Mersich
Sent: Sunday, April 01, 2012 5:18 PM
Are there any pc programs that can decode Loran C id's?
73,
Bill, WA2DVU
Cape May, NJH
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Cape may is up as of 1600 EDST
73,
Bill, WA2DVU
Cape May, NJ
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http://www.u-blox.com/images/downloads/Product_Docs/LEA-6_DataSheet_%28GPS.G
6-HW-09004%29.pdf
Regards,
Bill Riches, WA2DVU
Cape May, NJ
-
I have not been able to locate a spec sheet for there. Do you have a
link? Or maybe you could say how these are improved over the M12M?
--
Chris
Hi Paul and others,
Please give your QTH when posting. Any ids would be appreciated. I have
been talking with one of the ETs at the Wildwood NJ site. Film at 11.
73,
Bill, WA2DVU
Cape May, NJ
-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com
and
they have
lots of local interference from compact florescent bulbs and switching
power supplies
in computers and TV sets.
73
Bill wa4lav
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Cape May is up at 2000Z
73,
Bill WA2DVU
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Seems that Cape May NJ is on also - is that part of the chain?
73, Bill WA2DVU
-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of Stan, W1LE
Sent: Tuesday, March 20, 2012 10:45 AM
To: Discussion of precise time and frequency measurement
100 Khz is s/9 in Cape May, NJ.
73,
Bill, WA2DVU
Cape May,NJ
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OOOPS - had wrong antenna connected - sig is 20/9 and is coming from the
only station that has been doing tests. It is located at the southern end of
Wildwood New Jersey, the old USCG engineering station. About 5 miles as the
crow flies from my qth.
73,
Bill
-Original Message-
From
are
effectively multiplying
or mixing the incomming signal with square waves which have odd harmonics and
you still get aliasing.
73
Bill wa4lav
PS Just retired Friday. Maybe I will have some time to catch up with these
discussions.
Many A/D converter systems use a sample and hold before the A/D
I know I am not one of the good-ole-boys here but I'd say go 100% SDR with
your PC without an external
A/D converter. Ok, how would you do this? You use under sampling.
Many A/D converter systems use a sample and hold before the A/D converter.
If you do the same before your sound card (your
and collected stuff that might
be
interesting, what have you collected? Who will throw it in the dumpster when
you die?
If you are completely new to this, where would you like to start? Something
cheap
from an auction site or a new hydrogen maser?
Don't mind me, I've been around too long.
Bill Hawkins
the
site and last week it was putting in a 20 - 30/9 sig at my qth.
73,
Bill Riches, WA2DVU
Cape May, NJ
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I used to rebuild these units many years ago and they were quite a good
oscillator - these units would be good for a few parts in 10-9 and 10-8.
73,
Bill, WA2DVU
Paul A. Cianciolo paulc at snet.net
The cover has the layout of the parts. The connector has 6 coax
outputs into a D type
They were dogs though - I worked on mine for repairing 1051 rx - seemed
failure rate was more than 50 % - took 2 or three to make a good unit! But
when you made one work they were quite accurate considering their age.
73,
Bill, WA2DVU
Hi Bob,
Yes.. that is what I am trying to find out
,
an antenna connection, and several 50 pin connectors. A creative
bit banger could make a marvelous display from this unit. Truly
creative bit bangers are hard to find these days.
Have I challenged anybody here? Andy is one of the good guys.
Bill Hawkins
-Original Message-
From: time-nuts
at 10 Hz, 4.3 nV/rtHz at 1 Hz). These are
wonderful parts, but the large signal frequency response with a 100
ohm load is less than desired for a 10 MHz distribution amplifier.
73
Bill wa4lav
___
time-nuts mailing list -- time-nuts@febo.com
to
saturation?
I am new to this group but have had lots of RF experience and weak signal
detection experience.
73
Bill wa4lav
Date: Tue, 28 Feb 2012 07:34:09 -0500
From: Bob Camp li...@rtty.us
Hi
Very cool. How much power can you run through the device? Put another way,
if you drive it with +13 dbm
of all such as the IF3601.
Go to www.interfet.com
73
Bill wa4lav
At 05:11 PM 2/28/2012 -0500, time-nuts-requ...@febo.com wrote:
Date: Tue, 28 Feb 2012 11:51:54 -0800
From: gary li...@lazygranch.com
To: Discussion of precise time and frequency measurement
time-nuts@febo.com
Subject: Re
Hi, Marvin
Congratulations on receiving the funding to keep the experiment alive
and to get the right equipment. I've thought of our conversation in
early November many times.
Is it coincidence that your posting arrives on the same day that a 60
nS error was found in the OPERA experiment?
Bill
Ah, Didier, that link is to a thread started in September, 2011.
Do I have to sort through the 1000+ comments to find something recent?
Bill Hawkins
-Original Message-
From: Didier Juges
Sent: Wednesday, February 22, 2012 5:20 PM
http://science.slashdot.org/story/11/09/22/1841217
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