Hi Ernie,
The KO4BB repository has a manual for Option 2 of the 5680A. This might
not be exactly the same as the one you have,
but should hopefully at least use the same pinout.
Regards,
Peter
On Fri Dec 19 15:06 , erniepe...@aol.com sent:
Hi Gents,
Having a Fe5680
Hi Peter,
Thanks for the info, in the mean time got additional docs, now need
more time to play with it.
Best regards and Marry Xmas,
Ernie.
-Original Message-
From: Peter Vince pvi...@theiet.org
To: Discussion of precise time and frequency measurement
time-nuts@febo.com
Sent: Sat,
Hello, TimeNutters--
John Miles, KE5FX wrote:
Well, sure, it's more accurate than the undisciplined
OCXO in the counter, that's the idea behind the Thunderbolt. :)
n3...@aol.com wrote:
I just wanted to ask the group if the
Thunderbolt would be more accurate than the internal reference?
Michael Baker skrev:
Hello, TimeNutters--
John Miles, KE5FX wrote:
Well, sure, it's more accurate than the undisciplined
OCXO in the counter, that's the idea behind the Thunderbolt. :)
n3...@aol.com wrote:
I just wanted to ask the group if the
Thunderbolt would be more accurate
OK thanks, I couldn't find the link for the thunderbolt. The Agilent manual
states the best it's LO is 1 X E-10, (I think). I was just thinking
expensive test equipment that was recently calibrated versus junk GPSDO that I
salvaged from telco equipment.
**A Good Credit Score is
versus junk GPSDO
It's not junk.
What are you interested in? Short term stability or long term accuracy?
I'd expect the GPSDO to be more accurate over the long term, but probably
wobble around slightly at a time scale of a few seconds as the D tries to
keep things on target. An equivalent
Hal Murray skrev:
versus junk GPSDO
It's not junk.
What are you interested in? Short term stability or long term accuracy?
I'd expect the GPSDO to be more accurate over the long term, but probably
wobble around slightly at a time scale of a few seconds as the D tries to
keep things
...junk GPSDO... . Are you sure of that statement ?
The Cal Lab where I retired from had one of those junk GPSDO's
that they used. The only difference between theirs and mine (that
I built) was the 3 orders of magnitude difference in price !!
73, Dick, W1KSZ
-Original Message-
From:
I've been tracking my Fury GPSDO (ROM version 1.21) equipped with an
Isotemp OXCXO134-10 oscillator for a couple of weeks now and have
noticed that the Time Interval (TI) spikes around 20 to 40 nsec
everyday at 17:45 UTC (11:45 AM CST local time). There are minor
spikes (5 nsec) every 2 to 3
Hal Murray wrote:
versus junk GPSDO
It's not junk.
What are you interested in? Short term stability or long term accuracy?
I'm glad to hear that the Thunderbolt is not classed as 'junk'... :-)
Personally, what I want to do is two things. 1. Keep my PC clock within
a reasonable
In message unkqk45chmtca9aj54alqd3k24ctbf1...@4ax.com, Matt Osborn writes:
I've been tracking my Fury GPSDO (ROM version 1.21) equipped with an
Isotemp OXCXO134-10 oscillator for a couple of weeks now and have
noticed that the Time Interval (TI) spikes around 20 to 40 nsec
everyday at 17:45 UTC
Mike
A statement of accuracy is of little value unless you also give:
1) An estimate of the accuracy of standard used for comparison.
2) An estimate of the random and systematic errors in the comparison
3) Some details of the comparison method.
4) Averaging time and other pertinent info.
Bruce Griffiths skrev:
Mike
A statement of accuracy is of little value unless you also give:
1) An estimate of the accuracy of standard used for comparison.
2) An estimate of the random and systematic errors in the comparison
3) Some details of the comparison method.
4) Averaging
Hi,
does anyone know of a fast fourier transform module or subroutine
that could be run in XCEL ?
Or a small program that could process a data set in a PC.
It is a convenient way of handling data but I have not seen a FFT in
the box of tricks.
cheers, Neville Michie
Neville Michie skrev:
Hi,
Dear Neville,
does anyone know of a fast fourier transform module or subroutine
that could be run in XCEL ?
Or a small program that could process a data set in a PC.
It is a convenient way of handling data but I have not seen a FFT in
the box of tricks.
I
Hej Magnus
Magnus Danielson wrote:
Bruce Griffiths skrev:
Mike
A statement of accuracy is of little value unless you also give:
1) An estimate of the accuracy of standard used for comparison.
2) An estimate of the random and systematic errors in the comparison
3) Some details of the
Neville Michie wrote:
Hi,
does anyone know of a fast fourier transform module or subroutine
that could be run in XCEL ?
Or a small program that could process a data set in a PC.
It is a convenient way of handling data but I have not seen a FFT in
the box of tricks.
cheers, Neville
Neville
Ulrich's Plotter program has some built in FFT capability.
Bruce
Neville Michie wrote:
Hi,
does anyone know of a fast fourier transform module or subroutine
that could be run in XCEL ?
Or a small program that could process a data set in a PC.
It is a convenient way of handling
I suppose a good comparison would be: How accurate does the
speedometer in the car really need to be and why.
Burt, K6OQK
From: Magnus Danielson mag...@rubidium.dyndns.org
Subject: Re: [time-nuts] Thunderbolt accuracy...??
sniped...
It's not that we can't achieve better performance, but if we
Neville there is a Fourier routine built in I have used it for time sequence
analysis. It is not loaded by default. You may have to check the dropdown
menus to load it in (at least that was what I needed to do, but I am mean
and running an old Op-system :-)) )
Cheers de Alan G3NYK
- Original
I wonder if companies don't junk equipment because electrolytic capacitors
last years not decades Does this make sense?
Ed
- Original Message -
From: Rex r...@sonic.net
To: Discussion of precise time and frequency measurement
time-nuts@febo.com
Sent: Saturday, December 20, 2008 5:42
Thanks all,
I had looked but did not see...
I have found the function in Excel,
now I will revise the subject with Bracewell
and try to use it.
Thanks, Neville Michie
On 21/12/2008, at 10:59 AM, iovane@@inwind..it wrote:
I've been using the Xcel built in FFT, and even under WinXP it
Edwin B. Walker skrev:
I wonder if companies don't junk equipment because electrolytic capacitors
last years not decades Does this make sense?
No. Details like that does not comes into play. If the quality of the
gear does not match the specs, the manufacturer gets a serious problems
so
I do not think so. Most telephone company stuff is engineered to last
20+ years - it takes them a few years to recoup there investments cost
wise, and the electronics are usually close to mil specs.
Probably what happens, is they engineer a whole new system and all the
old systems , racks and
On 12/20/08 4:44 PM, Magnus Danielson mag...@rubidium.dyndns.org wrote:
Edwin B. Walker skrev:
I wonder if companies don't junk equipment because electrolytic capacitors
last years not decades Does this make sense?
No. Details like that does not comes into play. If the quality of the
Hi there,
this could also be caused by a slight error in the Auto Survey position of
the Fury GPSDO.
The M12 does the auto survey over 3 hours, so you are limited to the
accuracy and constellation of the Sats during that time period. You could try
the
following to improve your position
Lux, James P skrev:
On 12/20/08 4:44 PM, Magnus Danielson mag...@rubidium.dyndns.org wrote:
Edwin B. Walker skrev:
I wonder if companies don't junk equipment because electrolytic capacitors
last years not decades Does this make sense?
No. Details like that does not comes into play. If
Tom is just one guy who is doing this because he wants
to help his fellow time-nuts... and to play with some of
his toys.
He tests every single unit that goes through the system,
discarding those that don't meet his standards.
A couple of months is normal, and frankly, we are lucky
that it
Hello, Time-Nutters--
Jim Lux wrote:
To those tinkering at home, though, this cycling through is great.. If
you're willing to fix it yourself, and maybe have a hangar queen or princess
for parts, or you don't need ALL the functions to work (never needed that
knob anyway..), then you too get
On Dec 20, 2008, at 6:03 PM, Burt I. Weiner wrote:
I suppose a good comparison would be: How accurate does the
speedometer in the car really need to be and why.
Accurate enough so that if its reading matches the posted sign, you
don't receive a ticket?
Tom Frank, KA2CDK
Hi Tom:
Or, certifiable that it was reading low getting you out of a ticket.
The judge told me I could use this only once.
Have Fun,
Brooke Clarke
http://www.prc68.com
Thomas A. Frank wrote:
On Dec 20, 2008, at 6:03 PM, Burt I. Weiner wrote:
I suppose a good comparison would be: How
31 matches
Mail list logo
