As long as you don't have to change the 12AU7, you are OK :)
Didier KO4BB
Sent from my Droid Razr 4G LTE wireless tracker.
-Original Message-
From: paul swed paulsw...@gmail.com
To: Discussion of precise time and frequency measurement time-nuts@febo.com
Sent: Fri, 21 Dec 2012 11:18 AM
Hi Volker,
On 12/22/2012 04:55 AM, Volker Esper wrote:
Although I am dog-tired it gives me no peace...
I come to the following conclusion:
- The long term Allan deviation gets worse, as long, as the effect of
EFC compensating is in the range of tau
- But: It gets back to its normal value
I answer here to Bob Bill and Magnus.
Hi
I think I would grab some sort of USB thermometer and start logging
the room temperature.
CMOS input op-amps are a pretty good way to buffer the integrating
capacitor.
They are cheap and have very low bias currents.
Bob
The suspect is temperature,
Hi
It is often harder to measure a pulse that goes from 0 to 100 ns than it is to
measure one that goes from 100 to 200 ns.
The resolution on the 0 to 100 measure will be 2X, but the non-linearities at
zero are quite difficult to deal with. The 100 to 200 measure can get to the
same
Dear Fabio,
On 12/22/2012 02:34 PM, fabi...@quipo.it wrote:
I answer here to Bob Bill and Magnus.
Hi
I think I would grab some sort of USB thermometer and start logging
the room temperature.
CMOS input op-amps are a pretty good way to buffer the integrating
capacitor.
They are cheap and have
On 12/22/2012 06:44 PM, Volker Esper wrote:
Thank you for your statement, I have to think about it.
It seems to be clear, that ADEV/MDEV aren't the convenient tools for
characterizing such an event. My goal was to answere the question asked
in the beginning of this thread: Does a constant
Thanks David. That's good to know. It's an interesting display.
Regards,
Tom
- Original Message -
From: David Martin drmar...@ivietechnologies.com
To: time-nuts@febo.com
Sent: Friday, December 21, 2012 1:41 PM
Subject: [time-nuts] How it was Done - A Day in the Life of Five
I wonder if the forced convection is to strong. You don't want to
hit the limits of the oven control-range. Wonder if this is a
long-term effect and if even small adjustment to the setup can
remove the bursts of noise you are seeing.
Now, some hours after switching off the fan, I'm
Magnus Danielson wrote:
Dear Fabio,
On 12/22/2012 02:34 PM, fabi...@quipo.it wrote:
I answer here to Bob Bill and Magnus.
Hi
I think I would grab some sort of USB thermometer and start logging
the room temperature.
CMOS input op-amps are a pretty good way to buffer the integrating
capacitor.
Plot 1: MDEV of the time interval reported by GPSDO
Yes, Said, that are important issues.
By the way: I'm now writing in two threads, I don't know, why the
original thread (Z3805A cooling requirements?) was splitted... Can we
please move to the original thread?
I am sure, that the noise of
Volker.look at the subject line, the posting is in your hands, you dont
need to just use the reply button, as somone did with a digest which
forked the thread.. This means all the posing under Digest are hidden
from view and searching. You can edit the subject line but this does not
When it comes to phase, your interpolator may also be sensitive.
Dont know if I was clear enough, just in case I wasnt able
to explain well before: the data I collected didnt came from
the analog interpolator, but from the OutD that is a digital
out. The interpolator is still in it's infancy.
Hello, Bruce
Using saturated transistors as switches in the current source and
elsewhere isn't conducive to fast switching.
The traditional arrangement using current mode switches is much
faster and more predictable.
This is something I'd like to understand better.
I'm referring to this
Hi Fabio taking BJTs deep into saturation stores a lot of charge in the
collector base capacitance. this must br discharged before a state change
can occur. LSTTL gets round this and gets the speed at lower currents by
clamping the collector to only just in saturation with a schottky diode
Google baker clamp for more on this.
Tom
- Original Message -
From: Alan Melia alan.me...@btinternet.com
To: Discussion of precise time and frequency measurement
time-nuts@febo.com
Sent: Saturday, December 22, 2012 6:28 PM
Subject: Re: [time-nuts] Questions about TAC frontend, and
Thank you very much for the advice, I didn't know that at all...
Volker
Am 22.12.2012 22:26, schrieb Alan Melia:
Volker.look at the subject line, the posting is in your hands, you
dont need to just use the reply button, as somone did with a digest
which forked the thread.. This means all
Hi
One very simple question - how good would it do if you just did it all with
logic gates? Tri-state buffers and things like that….
Now that you are up to a 100 to 200 ns long pulse, a lot of the fiddly stuff
about can't get a 2 ns pulse through it goes away.
I'm not suggesting you tear up
17 matches
Mail list logo
