certainly it has produced some useful results. The rate at
which the number of links increases as a function of the number of nodes in a
full mesh is a powerful incentive to pursue larger numbers of nodes.
-Bill
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, that's one of the things that we do. You don't need a trigger, you can
just transmit the beacon. That's how we measure jitter and out-of-order
delivery, and how we detect parallel paths.
-Bill
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.
Traceroute already exists. In fact, plenty of one-way delay measurements
already exist. We're just doing a larger, better one. Yes, that takes time
and money. Math is hard, let's go shopping isn't a particularly interesting
argument.
-Bill
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) rather
than assuming a more predictable network with controlled latencies.
-Bill
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iQIcBAEBCAAGBQJPQtNzAAoJEG+kcEsoi3+HpRIQAM4TK1s+gbXHORxSiXad6If3
range, but less so at another
order of magnitude less precision.
-Bill
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iQIcBAEBCAAGBQJPQvtsAAoJEG+kcEsoi3+HafsQAJQJAkux30PcrGkzcw2oZQNx
7xKXvGYA
. It needs to be integrated
onto our board, but space isn't too constrained either.
I'm also happy to pay for a few consulting hours if people want to give me
detailed advice on a professional basis.
Thanks,
-Bill
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?
Bill Hawkins, who has ideas but is not a professional
-Original Message-
From: Bill Woodcock
Sent: Sunday, February 19, 2012 5:57 PM
Hi. This is my first posting to this list, and I'm not a timekeeping
engineer, so my apologies in advance for my ignorance in this area.
I'm building
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On Feb 19, 2012, at 5:07 PM, Bill Hawkins wrote:
If you are going to correct it with NTP, a simple crystal
oscillator will do.
Yeah, my assumption was that something like a DOCXO or a VCTCXO would be about
the best I'd get within budget
not worth spending any time thinking about. If wishes
were horses, etc.
Thank you very much for the advice.
-Bill
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iQIcBAEBCAAGBQJPQdVKAAoJEG+kcEsoi3
think he indicated he was using the common hobby type units. I
seriously don't think they measure up to your unit.
No, we're doing board-level integration.
-Bill
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on my phone upon landing in some countries. But it's been a while
since I've gotten a weird one in Europe or the more developed parts of Asia.
Africa and South and Central Asia are pretty much all over the map, though.
-Bill
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they...
73,
Bill Riches, WA2DVU
Cape May, NJ
-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of Jim Lux
Sent: Friday, February 17, 2012 9:43 AM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Fwd: FE-5680A Contact
Just curious,
Has anyone on this list actually contacted FEI and enquired about a
schematic or other info about our 5680 units? They are still being sold by
them.
73,
Bill Riches, WA2DVU
Cape May, NJ
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Nothing in Minnesota.
Probably just the local terrorist cell tuning up the jammers for the
big event on Valentine's day.
Or a Light Squared test . . .
Bill Hawkins
-Original Message-
From: paul swed
Sent: Monday, February 13, 2012 7:52 AM
None on the east coast
Said Jackson saidj
to do some experiments with these myself. Maybe they have
improved.
Alignment of the mirror is not easy either.
73
Bill wa4lav
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processing, as hearing or speech. Why? What else does that?
There are many oscillators in the brain. At least one of them is
good enough that I can sometimes cancel my alarm just before it
goes off.
Bill Hawkins
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I am new to the list and would like to know if anyone has a list of the
suffixes (options) for PTS synthesizers. There seem to be a number of them
that are not in their catalog.
73
Bill wa4lav
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short discussion with
him at the time.
His graduate student was a ham but Dr. Ramsey never was. Dr. McAdam did a
great deal of
research in atomic physics at UofK before he retired a couple of years ago.
73
Bill wa4lav
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.)
This would have the added benefit of fixing the scheduling bugs and
make finalizing automatic for a full disk, rather than the five clicks
it takes now.
One day, the lack of sync every week will get to me, and I'll start
this project, but I don't think I'll live to finish it.
Bill Hawkins
, starting with Feb 2011 warnings about
their frequency errors. Then I used Select All and Delete to remove
9% of the folder.
How about a new list for eBay finds that are a waste of money, like
the Lucent XO and Rb 15 MHz boxes? Maybe time-rats or time-junk
Bill Hawkins
Tobacco, coffee, alcohol
digital
broadcasting replaced analog.
Does anyone know how to make the DVR act as if it is seeing a
code with the correct time of day?
Failing that, can the crystal that determines time for the DVR
be adjusted?
Surely, some time-nut has solved this problem . . .
Bill Hawkins
Time is a great teacher
10544 is cool - earlier version than the 10811. Just make sure that the
unit is getting warm - some of them have had oven controller problems - but
haven't we all??!!
Regards,
Bill Riches
WA2DVU
-.
Hello.
I recently bough an HP-5334B counter with option 010 from the big E. A
Google
there were no new physics to be discovered,
time appears to be out of joint.
Bill Hawkins
As Yogi Berra once said, It's tough to make predictions,
especially about the future.
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.
Bill Hawkins
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Well, I just got out of the shower and had this thought:
There are people who hijack a thread *without* changing the Subject.
Tension is caused by noble goals meeting human imperfection. So it goes.
Oh, look at the time! Gotta run . . .
Bill Hawkins
-Original Message-
From: Attila
, a passage grave is not the same as a shadow cast by a
fine wire on a microscope. It might take a few years to locate it
properly.
Are there any timenuts that want to be buried in a passage grave?
Bill Hawkins
-Original Message-
From: Chris Albertson
Sent: Monday, January 23, 2012 8:40 PM
Mark,
Google gives this link as top of the list, and it does explain it.
http://www.amplifier.cd/Test_Equipment/Hewlett_Packard/HP_meter/HP3575A.htm
Very useful for Bode plots, but it doesn't do frequency stability.
Bill Hawkins
-Original Message-
From: Mark C. Stephens
Sent: Friday
are available for pickup at 55438 near Minneapolis,
Minnesota. For shipping I will use a service to pack and ship, which
will be reasonable but not cheap. I need to know by Jan 24, before
they join the rest of the stuff in a storage locker on a junk truck.
Bill Hawkins
to move
to assisted living.
Bill Hawkins
-Original Message-
From: cfo
Sent: Thursday, January 19, 2012 2:58 PM
Hello Nuts
I'm a Danish radio ham , and have recently picked up electronics again.
I'm programming AVR ARM controllers , and doing some basic electronics
stuff. I am rusty
Just so, Chris.
Another possibility is loss of interest in time, which has become the enemy.
I've become fascinated with the workings of the brain, and how that has
affected aspects of civilization. Maybe I can write a book, before I can't.
Bill Hawkins
-Original Message-
From: Chris
it does nothing - not connected - you might look at the 5680 archives - this
and a bunch of other info is listed ad nauseum about the 5680.
73,
Bill, WA2DVU
Cape May, NJ
-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of Robert Benward
I was looking at them also but thought if I tried to use them the soot would
have been let out of something!!
73,
Bill
WA2DVU
-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of Chuck Forsberg WA7KGX N2469R
Sent: Wednesday, January 18
http://forums.qrz.com/showthread.php?329468-This-year-a-day-and-a-second-longer
--
Doc
Bill Dailey
KXØO
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and follow
Earth Orientation Center of IERS
Observatoire de Paris, France
http://data.iers.org/products/16/14889/orig/bulletinc-043.txt
--
Doc
Bill Dailey
KXØO
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Bill Hawkins
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and follow the instructions there.
If you follow the link to get an offline PDF, you get the whole
magazine in 32 MB. The result is interesting, but some of us would
be better off downloading at night.
This is the wrong list to start a discussion of your blinding
Internet connection speed.
Bill Hawkins
-Original Message
Hello, WHAT???
Rob, that was a simple warning to people who might not be
expecting to tie up their machine while 32 megabytes
downloaded.
The magazine was very interesting. Thanks for posting the link.
Bill Hawkins
P.S. I did not mean you, Rob, when I said your speed. I was
trying to head off
they are screws - real small torx head
Bill Riches
Cape May, NJ
Should I ever have time to pursue the Rb unit, what happens when I 'drill
out' all the rivets that mount the unit to the PCB that it arrived on? Any
reason to keep it on the PCB?
Does the bottom cover come off? Will I need
beyond the capability of quartz at the required
error of one microsecond during the many hours that it will
take to transport Q between CERN and LNGS. Plenty of time
for cracks to propagate or chips fall off.
Why do you say we can ignore such effects?
Thanks for any enlightenment.
Bill Hawkins
in our lab. For a hundred bucks you have a RB standard. Spend the
bucks!!
73,
Bill, WA2DVU
Cape May, NJ
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and follow
Noticed that one of my 5680 units was a bit unstable at times. Reglued the
crystal back on to the board and it it happy!
73,
Bill, WA2DVU
Cape May, NJ
ons there.
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Hi Said,
Excellent plots - what program/ how are you producing the plots?
73,
Bill, WA2DVU
Cape May, NJ
-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of saidj...@aol.com
Sent: Wednesday, January 04, 2012 4:18 PM
To: time-nuts@febo.com
Ah ha!! I was hoping that it was a simple excel procedure!! Nice piece
of gear.
Regards
Bill
-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of Said Jackson
Sent: Wednesday, January 04, 2012 7:45 PM
To: Discussion of precise time
look on this list about a week ago. i wrote up how I did it. very easy. my
unit is holding at a few parts to the -11. sorry i do not have file on ipad.
bill wa2dvu
Sent from my iPad
On Dec 29, 2011, at 6:42 AM, Azelio Boriani azelio.bori...@screen.it wrote:
Someone here has pointed out
on this
unit that have been on this list.
73,
Bill Riches, Wa2dvu
Cape May, NJ
-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of saidj...@aol.com
Sent: Thursday, December 22, 2011 1:39 PM
To: time-nuts@febo.com
Subject: Re: [time-nuts
with 1 PPS
and you can clock the simultaneous change of the digits. Although,
there is a certain charm to watching the change propagate at some low
serial message baud rate.
Head or tail deletion is a pretty good idea, too.
Bill Hawkins
-Original Message-
From: Jim Lux
Sent: Saturday
if there is a secret handshake.
Also, periodically I would liek to search the archives but havent yet
figured out how to do it... can anyone help with that?
--
Doc
Bill Dailey
KXØO
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crave conflict.
Best wishes to all as the solemnity of the solstice approaches.
The solstice, at least, is about real planetary time.
Have at it, while you can.
Bill Hawkins
-Original Message-
From: J. Forster
Sent: Thursday, December 15, 2011 3:10 PM
To: time-nuts@febo.com; vintage
as r^+1 for rR
and as r^-2 for rR. (This is a freshman undergraduate Physics problem.)
Bill
Cheers,
Magnus
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nuts
? Sliding the one
ton mass is left as an exercise for the reader, as is installing it in the
basement.
Yours in search of more perfect knowledge outside my field,
Bill Hawkins
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didn't find them intimidating at all.
The gift shop would sell me a jacket with NSA logos, but I didn't
know where I would wear it. There is a certain cachet to having a
box that was used by top secret agents to decode radio intercepts.
Bill Hawkins
P.S. I'd recommend doing some signal tracing from
I should have been more direct.
What does a charged flash capacitor have to do with safety concerns
for low voltage batteries touching the tongue?
You can have the last word. It's time I moved on.
Bill Hawkins
-Original Message-
From: J. Forster
Sent: Monday, November 28, 2011 10:28
their name to a bill that compromised children's safety,
in any way real or imagined.
Lawyers are responsible for the death of common sense in the USA.
Trial lawyers, that is.
Now, a 9 volt battery has a few centimeters between terminals, if that.
It is commonly accepted that electrocution needs
Hey, John, got any idea of the DC to DC converter that charged that
capacitor? What voltage did it put out? Or the time it took to charge
it? Guarantee that you won't light a flash tube with 1.5 VDC.
Move on.
Bill Hawkins
-Original Message-
From: J. Forster
Sent: Monday, November 28
the product with a suitable wine. This is really a
great use of your thyme.
Oh, wait - this isn't the thyme-nuts list.
Never mind.
Bill Hawkins
The above was intended to entertain. Please don't be offended.
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for the answer.
Bill Hawkins
b...@iaxs.net (already on all the spam lists)
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, and they are designed to fail to protect
themselves.
Last I knew, the test had been cancelled.
Bill Hawkins
-Original Message-
From: Craig S McCartney
Sent: Wednesday, November 16, 2011 8:49 PM
Yet another challenge to proper time-keeping. I think that I will
re-calibrate the sundial in my yard
human empathy. Those who have it can deal
with the fact that no two people are alike. Those who don't would rule
the rest of us without understanding the differences. That's evolution
in action.
Bill Hawkins
-Original Message-
From: Bob Smither
Sent: Tuesday, October 25, 2011 11:32 PM
Bob
Fascinating thread.
Poul-Henning Kamp mentions contact prell.
Google can't find it. Even quoted, I get shampoo and people with that name.
I understand well contact bounce and contact dwell, but what is the meaning
of prell?
Bill Hawkins
-Original Message-
From: Poul-Henning Kamp
Sent
set up a time interval counter to show the phase between the two
outputs. The Racal-Dana 1992 does that at 10 MHz.
Out of curiosity, what would be the consequences of a steadily increasing
phase error? Would it offend your sense of perfection or would it have real
consequences?
Bill Hawkins
problem.
Perfection demands many oscillators with a voting system. Long winter nights
could be spent solving these problems. I'm too old for that stuff.
(I also post the most recent ideas first, so as not to reread old ideas.)
Bill Hawkins
-Original Message-
From: David VanHorn
Sent
for
ntpd and reads 0s offset). I presume I have to get a soekris unit,
descipline it and use freebsd and ntpns. Input?
--
Doc
Bill Dailey
KXØO
Anyone know where to get one?
--
Doc
Bill Dailey
KXØO
0.01034 0.000148 4
--
Doc
Bill Dailey
KXØO
what i mean is... why would it jump from 0 ns to 1000 ns and back?
On Mon, Oct 17, 2011 at 8:04 PM, Bill Dailey docdai...@gmail.com wrote:
thanks, what am i seeing here?
55852 3520.152 -0.01000 -29.727 0.01083 0.000168 4
55852 3536.152 0.0 -29.727 0.01068 0.000158 4
to
have 24 volt receivers with software like GPSCon that can do SNTP.
RS422 is no problem.
Please let me know if you find drawings and software. Copies are
worth more than postage to me.
Bill Hawkins
-Original Message-
From: k4...@aol.com
Sent: Sunday, October 09, 2011 1:41 PM
I will look
Quoted
There are three quantities involved here, and most of the coverage
and quite a lot of physicists overlook that:
1. Speed of neutrinos
2. Speed of photons
3. Constant 'c' From relativity.
Until now the assumption have been that 2 = 3, but this is only
The article is actually pretty fascinating regarding how it was all done.
Light can't go through rock (very far), neither can most other particles (some
farther than others). Neutrinos can pass through earth and the sun unimpeded.
It is neat apparently they set up a fiber optic link to test
Bert:
Something to be said about no moving parts.Bill-w7kxb
From: ewkeh...@aol.com
Date: Sat, 17 Sep 2011 21:22:30 -0400
To: time-nuts@febo.com
Subject: [time-nuts] temperature control
Recent comments on dewier flasks bring me back to test I conducted last
year using a nice flask that
What is a story about a pot calling a kettle black doing on this list?
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and see if the buzzing stops.
This is what I'd do, and I've never lost a 5061B yet - but then, I've never
owned one.
Did have a 5065 and some other Caesium standard, both with high initial
heater currents.
Bill Hawkins
-Original Message-
From: Erno Peres
Sent: Saturday, September 03
periodically meet under the
clock tower to set their watches, and reckon the distances to their
homes by the time offset.
Bill Hawkins, who recently read Neal Stephenson's Quicksilver.
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Guys,
Yes, the games are political.
No, politics is not the subject of this list.
I've stopped being curious about things I can't fix.
Bill Hawkins
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when the steep drops in difference occur?
Is anyone else running a similar experiment?
Bill Hawkins
-Original Message-
From: Poul-Henning Kamp
Sent: Thursday, August 04, 2011 1:13 AM
The jumps in the difference looks a lot like transformer phase-lag
in the grid, but the real test
Thanks for the input. I think i am asking for too much in one package (looking
toward future projects). How about 1.8Mhz to 15Mhz To meet the needs of
the primary project (fmt). I would prefer to not have to also use a counter.
Thanks,
Doc
KX0O
Sent from my iPad
Looking for recommendations for a broadband synthesizer with external reference
connection, at least 1mhz to 1ghz with micro to millihertz resolution. Oh
yeah under $1000 or so. I found a real nice one from holzworth but it is about
$5k which is a bit rich for me. I have seen. Various hp
Ok, I have a dds receiver locked to a gpsdo, the radio can only be tuned in 1
hz increments but should be dead on. I can feed the passband into speclab via
VAC and measure a carrier OTA. No problem there...can get decent resolution
but there is some uncertainty with regard to the dds
, only that
the passage of time alters men's passions.
Bill Hawkins
-Original Message-
From: Mike Feher
Sent: Tuesday, July 12, 2011 9:21 PM
A guy is offering a complete set item # 320727122967 on eBay. I already have
one complete set and lots of duplicates, otherwise I would jump
change today) to
increase power on demand - in fuel and stress on the equipment.
With any luck, my next message will be about the frequency control
problem.
Bill Hawkins
-Original Message-
From: Hal Murray
Sent: Sunday, July 03, 2011 11:15 PM
I've moved the 60 Hz stuff from
http
of change limit (can't be, 3000 people would have thought
of that.)
We welcome your comments with Enthusiasm.
The references below are important.
Bill Hawkins
-Original Message-
On Fri, Jun 24, 2011 at 7:02 PM, Bob Kupiec bobkup...@comcast.net wrote:
AP: Power grid change may disrupt clocks
How does this compare to Fury in terms of precision? They look very similar to
me. The cesium flavor seems to be geared more toward the mobility. I am
considering a Fury but would consider the csac if I could get a price close to
$1500 complete with enclosure. Any ideas as to what the
I would like a pci card that could be hooked up to an external reference for
sound card stability
Sent from my iPhone
On Jun 29, 2011, at 3:02 PM, time-nuts-requ...@febo.com wrote:
Send time-nuts mailing list submissions to
time-nuts@febo.com
To subscribe or unsubscribe via the World
The FireWire thing makes sense but is there some way to make the computer
itself a slave to an external source also?
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and
the Liebert is available.
Bill Hawkins
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and follow the instructions there.
the rotating field and the speed of the rotor.
Synchronous motors don't have slip, just phase angle. Zero angle
looks like a resistive load, yes?
The compressors don't have to run in sync.
Best,
Bill Hawkins
(who heaves a nostalgic sigh just thinking about those fine old
engines of progress)
-Original
to be a way to work precision time into this
thread, but I can't think of one.
Bill Hawkins
-Original Message-
From: Poul-Henning Kamp
Sent: Tuesday, June 21, 2011 2:40 PM
In message 4e008a73.50...@erols.com, Chuck Harris writes:
and yet, I find that some electrolytic
capacitors
Which Pete?
If it's you, use the link that follows To unsubscribe, go to
at the bottom of this page.
Bill Hawkins
-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of Pete Rawson
Sent: Thursday, June 02, 2011 1:11 PM
To: time-nuts
to share, but I'm considering moving on to a new hobby.
Bill Hawkins
-Original Message-
From: Robert Darlington
Sent: Saturday, May 21, 2011 1:31 AM
Guys, I gotta ask, what does this have to do with time keeping? Am I
missing something?
-Bob
the sender's address and
made it clear that their mailer's Reply key was the wrong
thing to use, we might not be having this discussion.
You can reply to me at b...@iaxs.net. I'm already on all of
the spam lists, and Red Condor filters all of the spam.
Bill Hawkins
-Original Message-
From: Bob
That's a good link.
Here's another, to a video presentation that gets into the details of the
Symmetricom CSAC.
http://www.brainshark.com/Steve_FatSymmetricom/vu?pi=691826191dm=5pause=1;
appKey=77
Bill Hawkins
-Original Message-
From: James Fournier
Sent: Wednesday, May 11, 2011 9:25
processor.
Bill Hawkins
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for the suggestion everybody.
Bill K7NOM
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On 4/14/2011 8:38 AM, bill wrote:
On 4/13/2011 5:47 PM, shali...@gmail.com wrote:
Fluke.l is using my design except for a number of units which were
shipped with 0 ohm resistors where the 3 diodes were supposed to go.
This powers the CPU with 5 V instead of 3 and most don't last long
will reverse engineer the serial port and
trouble shoot.
Bill K7NOM
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On 4/13/2011 9:13 AM, bill wrote:
I have a problem with the data out of the thunderbolt serial port. I
was monitoring with
ko4bb monitor and the thunderbolt quit sending data.
I seem to remember some discussion of this on the list some time ago.
I did a
search but didn't find anything.
Any
reference timer is the MicroSet made by Bryan Mumford.
It will do exactly what you want and even has an available GPS
reference if you need the accuracy. I've used one for quite a few
years and have no connection with Mumford except as a customer.
Bill S
I would like to know the precision
For extra points, test with the same long cable at different
temperatures.
Say from soaking in a 150 deg F oven and a zero degree freezer.
Bill Hawkins
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Try it with several different lengths of cable. If the unit
length delay changes, something else is going on.
Bill Hawkins
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solution to the 50/60 cycle line problem is a Z3801, a frequency
synthesizer, and a 70 watt audio PA amplifier with 70 volt line
output.
Notice the clever way I've eliminated the bytes from previous
messages . . .
Bill Hawkins
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You might want to post a request on;
f...@flexusergroup.com
This is a user group of programmers and users of the MC6800 and family.
It may require a wait for the moderator to OK the post.
Bill K7NOM
On 3/20/2011 8:37 PM, Greg Broburg wrote:
Any chance you have access to the operating code
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