On 05/08/2012 04:25 AM, J. Forster wrote:
The SMPTE Time Code was on one line in first 20 odd of the Verticle
Blanking Interval (VBI), along with the Color Bars, Multiburst, Closed
Captrion data and some other things.
It was not accurate to microseconds. It had a format of HH:MM:SS:FR
(Hours, M
j...@jwsss.com said:
> At least let someone claim that this affects climate change before you
> condemn it or make a comment like this.
> On 5/7/2012 6:38 PM, Tom Knox wrote:
>> Yea NIST and JILA keep pushing pseudo science, and they keep on recieveing
>> the Noble Prize in Physics for these id
Observed phenomena which verify or demonstrate this impact some theories
related to how the quantum effects govern areas around black holes.
Since they are only observable from their effects, and the theories
about the causes of these effects are used to explain these
observations, anything th
jim...@earthlink.net said:
> I wonder if the nature of email and how it gets read has any effect on
> usenet lists.
> Think back to expensive dialup days.. you'd dial up, download the batch,
> and then hangup. So you'd go through all the mail (almost like a digest)
> before responding.
I think
On 5/7/2012 7:22 PM, Cliff Sojourner wrote:
one more thing, people need to learn to hit the "delete" key if they
don't like a particular email.
I prefer to simply subscribe to low noise sources, where I'm not
required to get manually intervene.
get over it.
Don't tell me what to do. Get o
On 5/7/12 8:45 PM, Hal Murray wrote:
One thing that might help is if everybody would get in the habit of scanning
all their mail before responding to anything. The idea is that if a
discussion explodes while you are sleeping (or away from your mail for
whatever reason), you will learn that a to
c...@employees.org said:
> one more thing, people need to learn to hit the "delete" key if they don't
> like a particular email. get over it.
I don't think that's a reasonable approach. Yes, of course, we should all be
more tolerant. But that's only half the story.
There is an interesting
On 5/7/12 6:13 PM, J. Forster wrote:
A movie may be 7000 seconds, and you may need a fairly stable timebase,
but every movie I've watched is made up of short (<300 second) scenes that
are placed sequentially on the framework.
You are not meshing together a pair or multiplicity of 7000 second eve
The SMPTE Time Code was on one line in first 20 odd of the Verticle
Blanking Interval (VBI), along with the Color Bars, Multiburst, Closed
Captrion data and some other things.
It was not accurate to microseconds. It had a format of HH:MM:SS:FR
(Hours, Minutes, Seconds, Frame) ... the frame was a
Yes, the nice thing about that is it is so easy (if you prepare ahead
of time). Here is what we used:
http://en.wikipedia.org/wiki/SMPTE_timecode
Both have their uses.
On 05/07/12, J. Forster wrote:
When I was doing some video production, we would first "Black Burst"
the
When I was doing some video production, we would first "Black Burst" the
tape. This was done from end-to-end as the lattice.
Then we assembled the segments onto the that tape. The inserted segments
were always an integral number of frames.
The source deck for the playback was slaved to the prerec
I do not know if this is the type of solution you were looking for but Wenzel
builds a fantastic LNPLL.
Thomas Knox
> Date: Mon, 7 May 2012 16:11:13 -0500
> From: docdai...@gmail.com
> To: time-nuts@febo.com
> Subject: Re: [time-nuts] DPLL for 10MHz
>
> Regarding my abilities.. regarding ele
We had time code to sync a number of separate A/V recorders so that
during editing you can cut from one to another seamlessly. I didn't
calculate or look at how tight the sync had to be. The mobile cams
could be out there for a while, maybe an hour or more, starting and
stopping to
On Mon, May 07, 2012 at 06:13:56PM -0700, J. Forster wrote:
> A movie may be 7000 seconds, and you may need a fairly stable timebase,
> but every movie I've watched is made up of short (<300 second) scenes that
> are placed sequentially on the framework.
5-10 seconds a cut is quite common,
Yea NIST and JILA keep pushing pseudo science, and they keep on recieveing the
Noble Prize in Physics for these ideas.
Thomas Knox
> From: alan.me...@btinternet.com
> To: jwsm...@jwsss.com; time-nuts@febo.com
> Date: Tue, 8 May 2012 00:13:44 +0100
> Subject: Re: [time-nuts] Faster than light
If it's of any use to you, here is a link to the layout and parts
placement for a board I designed when I was playing with the oncore
for APRS some years ago. The board is designed so the motorola oncore
plugs in to the top of my board and is secured by 10mm high
stand-offs. My board supplies a reg
A movie may be 7000 seconds, and you may need a fairly stable timebase,
but every movie I've watched is made up of short (<300 second) scenes that
are placed sequentially on the framework.
You are not meshing together a pair or multiplicity of 7000 second event
sequences. E#very time you edit in a
One area where accuracy is important is not because of pitch (nobody can
hear 1ppm differences), but because of the need to synchronize sound
from different sources, particularly with video or motion picture frames.
1000 seconds (20 minutes, give or take) with the sampler off by 1ppm
will be
Motorola offered an 8 channel GPS chipset and also a 12 channel chipset
based on the MC2003. A separate "RF Oncore" GPS receiver front end (PWA
Board) was also sold in the late nineties. These products were only
available to volume users (50 K pieces and up).
I'll review what we have stored in th
May we PLEASE go back the the intended purpose of this list.
Hadley
K7MLR
A fine is a tax for doing wrong. A tax is a fine for doing well.
Peter Cooper, of Fermi Lab, says, "Every experimentalist knows
that the apparatus, or at least your understanding of it, is
always at fault until
David,
I haven't been following this thread so I suppose it has already been
answered, but how are you measuring "zero beat?"
Lee Mushel
- Original Message -
From: "David I. Emery"
To: ; "Discussion of precise time and frequency
measurement"
Sent: Monday, May 07, 2012 5:37 PM
Subj
On 05/08/2012 01:19 AM, Art Sepin wrote:
Ken,
You can find the UT+ Engineering Notes and the complete UT+/GT+ User's
Guide here:
http://www.synergy-gps.com/index.php?option=com_content&task=view&id=35&;
Itemid=60
We should have the legacy UT+ and M12+ firmware history and Firmware
Application
MMmmm I still thing that NIST should know better it obviously getting
near "appropriations time" I think you call it !! It is not a connector that
is loose this time!
I may have access to Phys Rev Letters.
Alan
- Original Message -
From: "Cliff Sojourner"
To: "Discussion of precise t
It's kinda a trick question.
The important thing is 'before anyone could detect any differences in the
sound?'
I was involved in making a decision to go with brand A or B speakers in a
roughly 1200 seat auditorium. There was a lot of political pressure to
choose brand B. IMO, brand A sounded bett
On Mon, May 07, 2012 at 08:28:41AM -0700, J. Forster wrote:
> A crummy crystal oscillator zero beated to WWV is good to 1 in 10E6, a Rb
> disciplined to GPS maybe 1 in 10E11.
>
> Do you seriously think you, or anybody, can hear a pitch difference of
> 0.001 Hz in the audio range?
>
> A quartz cry
Or here:
http://gpsd.berlios.de/vendor-docs/motorola/toc.pdf
http://gpsd.berlios.de/vendor-docs/motorola/ch1.pdf
http://gpsd.berlios.de/vendor-docs/motorola/ch2.pdf
http://gpsd.berlios.de/vendor-docs/motorola/ch3.pdf
http://gpsd.berlios.de/vendor-docs/motorola/ch4.pdf
http://gpsd.berlios.de/vendor
not at all. read the summary, they are playing with group delay.
oh and by the way, there is some effect working with "cold fusion". we
don't know what it is.
that's why it's called basic research. "if we knew what we were doing
it wouldn't be called research"
one more thing, people need
Ken,
You can find the UT+ Engineering Notes and the complete UT+/GT+ User's
Guide here:
http://www.synergy-gps.com/index.php?option=com_content&task=view&id=35&;
Itemid=60
We should have the legacy UT+ and M12+ firmware history and Firmware
Application Notes up at the same location in a couple
So it is not scientific information..just pseudo science.. like I
travelled back in Time yesterday !! But then I woke up.
Another cold fusion..
Alan G3NYK
- Original Message -
From: "jim s"
To:
Sent: Monday, May 07, 2012 11:16 PM
Subject: [time-nuts] Faster than light of a
On Mon, May 7, 2012 at 4:01 PM, Ken Kubick wrote:
>
> Hi, Guys I just purchased two Motorola UT+ Oncore GPS Timing Receiver 1pps
> R5122U1154 pcb's. Does anyone have any information such as a schematic or
> software on these.
Some good links here
http://www.synergy-gps.com/index.php?opti
Guys,
this thread and the un-countable emails it has generated so far is the
exact type of discussion that TVB just sent out an email about that should not
be on time nuts.
bye,
Said
In a message dated 5/7/2012 16:00:54 Pacific Daylight Time,
mbla...@satx.rr.com writes:
Wow! $1260 f
As usual you can find the UT+ manual but don't expect to find any
commercial GPS receiver schematic.
Try here:
www.tapr.org/gps_oncoreut.html
On Tue, May 8, 2012 at 1:01 AM, Ken Kubick wrote:
>
> Hi, Guys I just purchased two Motorola UT+ Oncore GPS Timing Receiver
> 1pps R5122U1154 pcb's. Doe
Hi, Guys I just purchased two Motorola UT+ Oncore GPS Timing Receiver 1pps
R5122U1154 pcb's. Does anyone have any information such as a schematic or
software on these.
Thankyou
Ken Kubick
kenkub...@hotmail.com
___
Wow! $1260 for a 4' power cord, but wait, there's more... It was named
'Power Cord of the Year'.
Mike
On 5/7/2012 9:39 AM, Burt I. Weiner wrote:
A friend of mine signed me up for a catalog from the "Audio Advisor".
He said I deserved this - I was afraid to ask what he meant by that!
Spend a
great find! the best I could find was $2 at qty 100
On Mon, May 7, 2012 at 3:49 PM, Bob Martin wrote:
> Summary: I found some, 50 or so, 20 cents each. Contact me off-list (at
> k6...@arrl.net) if you are interested.
>
> The longer version:
>
> My travels had me near a surplus place I hadn't
Summary: I found some, 50 or so, 20 cents each. Contact me off-list (at
k6...@arrl.net) if you are interested.
The longer version:
My travels had me near a surplus place I hadn't visited in a while. Wandering
the aisles, I thought to myself, "Self, there's a part we need for the PICTIC
II --
Well, so given the goal (stability at tau, for example) find the best
measure and adjust rates (maybe they are not the same) given the
oscillator-to-be-disciplined characteristics.
On Mon, May 7, 2012 at 11:44 PM, Magnus Danielson <
mag...@rubidium.dyndns.org> wrote:
> On 05/07/2012 10:59 PM, Aze
This is a note on a site about some experiments to transmit information
faster than light. It fiddles with some definitions in the speed of
light restrictions in quantum theory.
the reason I am posting here is that it used Rubidium beams. The actual
publications may be of interest to those w
I'm running (although running isn't quite correct for VHDL) this on a
50Kgates Xilinx XC3S50 FPGA. Of course this can be compiled on whatever
brand of logic you prefer, I've not used any proprietary/strange (other
than local clocks, which are usually discouraged) property. Of course this
is only a
On 05/07/2012 10:59 PM, Azelio Boriani wrote:
Yes, interesting, now I realize... but:
the larger the deviation becomes and lower frequency it will have... and
both makes it>harder to suppress by filtering.
Filtering at what level? Lengthen the sampling time? The average build up?
That is, no
Regarding my abilities.. regarding electronics... poor soldering is about
my limit... through hole only. That is why I was hoping there was some
off the shelf method that I could wire up with 10 MHz in from the gspdo and
from the oscillator then wire up the EFC volatge and set the required
parame
OK, so 1 PPS GPS to Rb -> need a TIC; 10MHz Rb to OCXO -> need a PLL. Are
you interested in an all digital 10nS single shot TIC that gives you a 2's
complement number (negative at the left of the GPS PPS and positive at the
right)? Here it is. This is my TIC, I use it on all my GPSDOs.
LIBRARY IE
Yes, interesting, now I realize... but:
>the larger the deviation becomes and lower frequency it will have... and
both makes it >harder to suppress by filtering.
Filtering at what level? Lengthen the sampling time? The average build up?
That is, now I'm not aware and think that I have to correct as
Hi Azelio,
On 05/07/2012 10:13 PM, Azelio Boriani wrote:
OK, got it. Yes, something like the dithering with a DAC to increase the
resolution.
Indeed. Now, consider now that the variations can come from any form of
noise source.
Another thing I've learned is that the longer you wait with a
OK, got it. Yes, something like the dithering with a DAC to increase the
resolution.
On Mon, May 7, 2012 at 6:52 PM, Magnus Danielson wrote:
> Azelio,
>
> On 05/07/2012 09:56 AM, Azelio Boriani wrote:
>
>> Magnus,
>>
>> If you flip back and forth, then it makes sense because your phase
>>>
>> d
j...@quikus.com said:
> Suppose you have a perfect, ideal clock that puts out 'convert' pulses at an
> exact rate is used to strobe a high precision A/D.
> Now suppose you add jitter to that perfect clock so that the rate stays the
> same but time interval between successive pulses varies randoml
In message
, Chris Albertson writes:
>Advantages are that you
>can sample higher frequency than 1/2 the average sample rate and
>alieasing is less a problem.
Disadvantage: on playback you get both a sample and a standard deviation :-)
I don't think anybody uses random sampling unless they have
New question about "jitter" in recording.I was reading some time
ago about non-uniform sampling. Basically the time between samples is
random (or as random as you can make it) But now you have to sample a
clock AND the signal. Or more likely use a psuedorandon sample
interval that can be reco
In message
, Chris Albertson writes:
>You are mixing recording and distribution. The 16-bit 44.1K "CD
>Quality" is for distribution to consumers.
I'm old enough to have listend to comparisons when 16 bit 44.1KHz
was _both_ recoding and distribution format :-)
As I said: one of the main driver
On 05/07/2012 08:15 PM, Poul-Henning Kamp wrote:
In message<4fa80913.7000...@medesign.ro>, MailLists writes:
That was a big problem with the dynamic range of tape recorders, which
had to be solved with noise reduction circuits. Even good 16 bit ADCs
have a higher DR than the SNR of most instrum
On Mon, May 7, 2012 at 11:15 AM, Poul-Henning Kamp wrote:
> We must start out by defining the acceptable level of total distortion,
> if we choose 0.5% then we need 200 digital levels, roughly 8 of
> your 16 bits for the signal.
>
> That gives you a headroom of 7 bits (leaving one for the sign) a
In message <1336415866.16321.14.camel@laptop>, Dan Mills writes:
>On Mon, 2012-05-07 at 18:15 +, Poul-Henning Kamp wrote:
>16 bits is actually fine as a distribution format,
Yes, I agree with that, and lets use that agreement to stop the
topic :-)
--
Poul-Henning Kamp | UNIX since Zi
On Mon, 2012-05-07 at 18:15 +, Poul-Henning Kamp wrote:
>
> We must start out by defining the acceptable level of total distortion,
> if we choose 0.5% then we need 200 digital levels, roughly 8 of
> your 16 bits for the signal.
>
> That gives you a headroom of 7 bits (leaving one for the si
In message <4fa80913.7000...@medesign.ro>, MailLists writes:
>That was a big problem with the dynamic range of tape recorders, which
>had to be solved with noise reduction circuits. Even good 16 bit ADCs
>have a higher DR than the SNR of most instruments in quiet recording
>studios.
Not so fas
Analog Devices and Linear Technology have application notes on this
subject. At least with sampling converters, jitter directly limits
dynamic range.
My back of the envelope calculation comes up with about 25ps of RMS
jitter for an ideal 16 bit sampling converter at audio frequencies but
most del
10 MHz between Rb and OCXO 1 pps between GPS and Rb. Always a Rb with GPS.
Bert Kehren
In a message dated 5/7/2012 1:30:57 P.M. Eastern Daylight Time, azelio.
bori...@screen.it writes:
Using the PPS as a sync source?
On Mon, May 7, 2012 at 6:24 PM, wrote:
> Tried, no interest, some one
In message <62172.12.6.201.2.1336409319.squir...@popaccts.quikus.com>, "J. Fors
ter" writes:
>Suppose you have a perfect, ideal clock that puts out 'convert' pulses at
>an exact rate is used to strobe a high precision A/D.
>
>Now suppose you add jitter to that perfect clock so that the rate stays
>
In message , "Bob Camp" writes:
>If you extend the bandwidth down low enough (as in low audio) the jitter
>goes up quite a bit. In the case of audio, jitter at low frequencies just
>might be something to worry about.
Not with the kind of physical laws I live in.
At low audio frequencies, say 100
On Mon, 7 May 2012 12:17:02 -0500
Bill Dailey wrote:
> Regarding the vectron tru-050 looks nice but requires me to come up with
> a board and resistors and capacitors etc which is above my ability.
Uhmm... how far does your abilities go?
>
> I looked at the miller thing but what I want to do
On Mon, 07 May 2012 19:07:12 +0200
Magnus Danielson wrote:
> > Uhm.. i don't understand at all. Could you give some pointers or explain
> > what L^2 and the rest is?
>
> Ligthsquared and their LTE system that threatend to noise out GPS from
> US. Loads of messages on that on the list already.
In message <4fa7fb9b.3040...@yahoo.com>, "Randy D. Hunt" writes:
>On 5/6/2012 7:39 PM, Jim Palfreyman wrote:
>> http://www.ebay.com.au/itm/Antelope-Audio-Isochrone-10M-Rubidium-Atomic-Clock-/270809581736?pt=LH_DefaultDomain_0&hash=item3f0d8248a8
>>
>> Make sure you read the description to discover
That was a big problem with the dynamic range of tape recorders, which
had to be solved with noise reduction circuits. Even good 16 bit ADCs
have a higher DR than the SNR of most instruments in quiet recording
studios. With the mixing of multiple dubs, the main problem is the
summed background
Regarding the vectron tru-050 looks nice but requires me to come up with a
board and resistors and capacitors etc which is above my ability.
I looked at the miller thing but what I want to do is only correct the
oscillator like every 500-1000 seconds. I want to do more than smooth out the
hu
I am patiently waiting for the code to drive the DAC.
Bert Kehren
In a message dated 5/7/2012 12:54:54 P.M. Eastern Daylight Time,
att...@kinali.ch writes:
On Mon, 7 May 2012 10:30:56 -0500
Bill Dailey wrote:
> Does anyone have any knowledge of a simple (just soldering a
> few connectio
On Mon, May 7, 2012 at 9:54 AM, Attila Kinali wrote:
> What speaks against a simple design as used in the GPSDO by James Miller[1]?
> Or if you want a better PLL than just an XOR gate, use a 74x4046.
> They are still available in DIL, so building a complete PLL is possible
> on a veroboard. This
On 05/07/2012 07:01 PM, Attila Kinali wrote:
On Mon, 07 May 2012 08:11:53 -0700
Jim Lux wrote:
-> the recent GPS filtering thing..
You mean the "Don't GPS your Rb" thread?
it took a YEAR for someone in the
PNT community to finally come up with a good, simple explanation of why
L^2 argumen
My apologies if is missed it, but will there be "official" support of
the nortel version in some future release of LH?
On Thu, May 3, 2012 at 5:02 AM, Mark Sims wrote:
>
> Recently Sam managed to poke and prod a Trimble/Nortel GPSTM (NTGS50AA)
> enough to wake it up out of its slumber and be rec
On Mon, 07 May 2012 08:11:53 -0700
Jim Lux wrote:
> -> the recent GPS filtering thing..
You mean the "Don't GPS your Rb" thread?
> it took a YEAR for someone in the
> PNT community to finally come up with a good, simple explanation of why
> L^2 arguments were invalid. And it comes down to t
Nearly all modern recordings are "multiple mono". One microphone per instrument
if not more. Multiple overdubs. If high ticket artists are collaborating, they
may be recorded at different times. (Bruce Springsteen and Rosanne Cash duet
for example.) They want a high bit depth so the final produc
On Mon, 7 May 2012 10:30:56 -0500
Bill Dailey wrote:
> 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 OCX
One of my other avocations is precision shooting. I would not like to
engage in a contest to see which bunch of aficionados has more
folklore
Don
Javier Herrero
> El 07/05/2012 11:20, Attila Kinali escribió:
>> But to bring this back to time nutty topics, have a look at
>> http://www.colorfly.
Suppose you have a perfect, ideal clock that puts out 'convert' pulses at
an exact rate is used to strobe a high precision A/D.
Now suppose you add jitter to that perfect clock so that the rate stays
the same but time interval between successive pulses varies randomly
between P(1-x) and P(1+x).
H
On 5/7/2012 2:20 AM, Attila Kinali wrote:
On Mon, 07 May 2012 13:40:15 +0530
Raj wrote:
I once did a test with a "audio expert" and compared a CD and a digital copy.
He confirmed that the copy was the original and when I showed him which was
which
he still refused to believe.. I know a local
Azelio,
On 05/07/2012 09:56 AM, Azelio Boriani wrote:
Magnus,
If you flip back and forth, then it makes sense because your phase
deviations>will be less.
Can you further explain this? Thanks.
Certainly!
Consider that you flip back and forth between two levels, let's just say
50% "high" a
Isn't "long term stability" an oxymoron? Or, put another way, a Murphy
Mantra?
Don
MailLists
> Let's expect the ultimate portable MP3 player with atomic clock
> reference... >:]
>
> Also funny are the offerings with RbO CD-clocks... usually "tweaked"
> FE-5680s, which are not exactly famous for a
Hi
Be careful when you talk about jitter of any device, OCXO's included. There
is always an implied bandwidth in the conversion of phase noise to jitter.
If you extend the bandwidth down low enough (as in low audio) the jitter
goes up quite a bit. In the case of audio, jitter at low frequencies ju
On Mon, May 7, 2012 at 8:59 AM, Attila Kinali wrote:
> On Mon, 07 May 2012 08:20:55 -0700
> Dan Rae wrote:
>
>> I see nothing odd about wanting to get the best possible source for the
>> Master Clock for your master recordings.
You are right about that. But there are better clocks at 1/10th of
On 5/6/2012 7:39 PM, Jim Palfreyman wrote:
http://www.ebay.com.au/itm/Antelope-Audio-Isochrone-10M-Rubidium-Atomic-Clock-/270809581736?pt=LH_DefaultDomain_0&hash=item3f0d8248a8
Make sure you read the description to discover what it's being sold for.
My chuckle for the day.
Jim Palfreyman
_
It has nothing to do with engineering.
"Artists", and I use the word with a huge bag of salt, are often Prima
Donnas. They are under the illusion that their works are masterpieces,
because they sell millions of copies on iTunes or elsewhere, or theit
concerts are sold out in two minutes. So, natu
If you take into consideration that the best currently available DACs,
also true for analog circuits, have a dynamic range about 120-126dB, the
last 3-4 bits are quite irrelevant (random noise mostly)... a good 20bit
DAC already pushes the limits.
The marketingdroids swarming for the newest "32"
The Vectron TRU-050 is a PLL with an integrated VCXO. You can sync a 10MHz
OCXO but not from a GPS receiver with the PPS only.
On Mon, May 7, 2012 at 6:29 PM, Azelio Boriani wrote:
> Using the PPS as a sync source?
>
>
> On Mon, May 7, 2012 at 6:24 PM, wrote:
>
>> Tried, no interest, some one ha
Using the PPS as a sync source?
On Mon, May 7, 2012 at 6:24 PM, wrote:
> Tried, no interest, some one has offered to in the future do a gate array
> version, you may want to wait for that I am in the mean time using am
> analog
> loop for less than 100 seconds between Rb and OCXO and a very mod
On Mon, 7 May 2012 18:19:19 +0200
Attila Kinali wrote:
> Of course, you have
> to keep the clock signal clean of any disturbance that might add modulations
> to it. But that's a matter of keeping the power supply clean and having the
> signal shielded. It's not an inherent property of an Rb to ha
Tried, no interest, some one has offered to in the future do a gate array
version, you may want to wait for that I am in the mean time using am analog
loop for less than 100 seconds between Rb and OCXO and a very modified
Shera for GPS/Rb. Works for me.
Contact me off list and we can talk.
Be
On Mon, 7 May 2012 10:02:25 -0600
Tom Knox wrote:
>
> Actually the numbers are quite real, play with the math, a small amount
> of jitter in a DAC (X) can have a large difference (Y) when sampling a
> complex wave form especially in the audiophile world where the sound of
> 24bit dac 16,777,216
Actually in digital audio playback timing is just as important except that
there is no was to remove jitter during poor recordings.
Thomas Knox
> Date: Mon, 7 May 2012 08:20:55 -0700
> From: dan...@verizon.net
> To: time-nuts@febo.com
> Subject: Re: [time-nuts] Oh dear
>
> All this kerfuffle
On Mon, 07 May 2012 15:34:21 +, "Poul-Henning Kamp"
wrote:
>In message <063ae10c-af96-4f39-9caf-9e5ecc96b...@gmail.com>, Bill Dailey writes
>:
>>Does anyone have any knowledge of a simple (just soldering a few
>>connections and maybe programming a hz/volt rate) PCB for synchronizing
>>a preci
Actually the numbers are quite real, play with the math, a small amount of
jitter in a DAC (X) can
have a large difference (Y) when sampling a complex wave form especially
in the audiophile world where the sound of 24bit dac 16,777,216 discrete
levels is clearly superior to older 16 bit dac 65
This is something I would also like to know. I'm sure many others
would be interested as well. Bert would it be possible for you to
share your thoughts on the matter with the group at large?
-Eric
On Mon, May 7, 2012 at 8:43 AM, wrote:
> Doc contact me off list
> Bert Kehren
>
>
> In a message
On Mon, 07 May 2012 08:20:55 -0700
Dan Rae wrote:
> I see nothing odd about wanting to get the best possible source for the
> Master Clock for your master recordings.
>
> My son does run a small studio and for him I was able to make a version
> of that unit, for a lot less money of course. If
Doc contact me off list
Bert Kehren
In a message dated 5/7/2012 11:40:04 A.M. Eastern Daylight Time,
docdai...@gmail.com writes:
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
Time nuts has turned in to a chat room to people that have diarrhea of
their fingers. The result is that many of us converse off list and do not
contribute to meaningful dialog.
Are there not rules and if yes, should they not be respected and adhered
to?
Bert Kehren
Bert,
The guidelines,
>
>> In message <226574.14407...@smtp104.sbc.mail.mud.yahoo.com>, "Burt I.
>> Weiner" w
>> rites:
>>
>> Next step will be to try to sell them electricity produced on
>> turbogenerators aligned to the earths magnetic field in order
>> to deliver minimal low unharmonic distotion...
I've been thinki
In message <063ae10c-af96-4f39-9caf-9e5ecc96b...@gmail.com>, Bill Dailey writes
:
>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 wi
A crummy crystal oscillator zero beated to WWV is good to 1 in 10E6, a Rb
disciplined to GPS maybe 1 in 10E11.
Do you seriously think you, or anybody, can hear a pitch difference of
0.001 Hz in the audio range?
A quartz crystal is plenty good for any audio application, IMO.
-John
=
As an Audiophile and T-Nut I am often torn by what could affect sound quality,
but I have realized that there are many things that affect sound that as
engineers we have not learned to define. As a scientist I look forward to the
day we can accurately rate how equipment will sound in mathematic
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.
This is the most ridiculous discussion in the history of this group. If
anyone could sympathize with the need for super-timing on audio it should be
those of you who think you need cesium clocks in your homes.
-RL
---
Robert Lutwak | SymmetricomR, Inc.
Chief Scientist
-Original Message---
Roberto
you and I have already dialog off list that I value and we will continue.
Some legitimate questions get drowned out by off subject postings but in my
opinion there is room for techno elitism on subjects that are time and
frequency related I have learned a lot, and for time/frequency
In message <4fa7e639.9090...@earthlink.net>, Jim Lux writes:
>Well.. this is where folks on this list can do the world a service..
>
>The whole thing about timing, stability, phase noise, Allan deviations,
>etc. *is* complex, and it's tricky to come up with easy to understand,
>short, descriptio
1 - 100 of 122 matches
Mail list logo
