Re: [time-nuts] Getting Started in High Precision Timing

2010-11-19 Thread Bob Camp
Hi

Not to mention the link on the page to Stable-32, which is a very nice piece
of software.

Bob

-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of Stanley Reynolds
Sent: Friday, November 19, 2010 12:21 PM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Getting Started in High Precision Timing

Matt,

As a follow up just ran across this which is good to get started with :
http://www.wriley.com/Examples%20of%201%20PPS%20Clock%20Measuring%20Systems.
pdf

In fact Mr. Riley has a very good selection of material at :
http://www.wriley.com/#papers

Stanley



- Original Message 
From: Matt Davis 
To: time-nuts@febo.com
Sent: Mon, November 15, 2010 7:31:42 AM
Subject: [time-nuts] Getting Started in High Precision Timing

Hello all,
I have been a software hacker for years but have never really done too
much hardware hacking.  I have been looking at oxco modules, but the
data sheets of various vendors do not really provide me with a good
basis as to what such an oscillator would provide me.  I assume its
just oscillation given the given frequency.  Do any of you all have
any good links/resources aside from what a basic google would provide,
as to how to get the data from the oscillator at a pulse-per-second
rate allowing me to do some basic timing.  Really, I'm just looking
for some first steps in hacking on these high-precision oscillators.

Thanks

-Matt

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Re: [time-nuts] Getting Started in High Precision Timing

2010-11-19 Thread Stanley Reynolds
Matt,

As a follow up just ran across this which is good to get started with :
http://www.wriley.com/Examples%20of%201%20PPS%20Clock%20Measuring%20Systems.pdf

In fact Mr. Riley has a very good selection of material at :
http://www.wriley.com/#papers

Stanley



- Original Message 
From: Matt Davis 
To: time-nuts@febo.com
Sent: Mon, November 15, 2010 7:31:42 AM
Subject: [time-nuts] Getting Started in High Precision Timing

Hello all,
I have been a software hacker for years but have never really done too
much hardware hacking.  I have been looking at oxco modules, but the
data sheets of various vendors do not really provide me with a good
basis as to what such an oscillator would provide me.  I assume its
just oscillation given the given frequency.  Do any of you all have
any good links/resources aside from what a basic google would provide,
as to how to get the data from the oscillator at a pulse-per-second
rate allowing me to do some basic timing.  Really, I'm just looking
for some first steps in hacking on these high-precision oscillators.

Thanks

-Matt

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Re: [time-nuts] Getting Started in High Precision Timing

2010-11-15 Thread Stanley Reynolds


I have been a software hacker for years but have never really done too
much hardware hacking.  I have been looking at oxco modules, but the
data sheets of various vendors do not really provide me with a good
basis as to what such an oscillator would provide me.  I assume its
just oscillation given the given frequency.  Do any of you all have
any good links/resources aside from what a basic google would provide,
as to how to get the data from the oscillator at a pulse-per-second
rate allowing me to do some basic timing.  Really, I'm just looking
for some first steps in hacking on these high-precision oscillators.

Matt,

Yes I'm sure many on this list have large collections information but you would 
need to be very specific to receive an answer, make, model, and which spec. 
Several projects can be found in the list archives for dividing the oxco rate 
to 
the PPS rate. Check the TAPR web site for a TADD-2 PPS divider. In general you 
accumulate all sorts of lab grade test equipment or make your own equipment to 
measure the output. The catch 22 is you need a better reference to measure a 
unknown device. Most start with GPSDO and a Time Interval Counter / Frequency 
Counter a way to log your data to process on a computer is good unless you want 
to go old school with pen and paper and stop watch ;-)

Stanley

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[time-nuts] Getting Started in High Precision Timing

2010-11-15 Thread Matt Davis
Hello all,
I have been a software hacker for years but have never really done too
much hardware hacking.  I have been looking at oxco modules, but the
data sheets of various vendors do not really provide me with a good
basis as to what such an oscillator would provide me.  I assume its
just oscillation given the given frequency.  Do any of you all have
any good links/resources aside from what a basic google would provide,
as to how to get the data from the oscillator at a pulse-per-second
rate allowing me to do some basic timing.  Really, I'm just looking
for some first steps in hacking on these high-precision oscillators.

Thanks

-Matt

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