I've been reading a lot about ADEV and following the threads on the list,
particularly Karen's in-flight thread. What I haven't come across is a simple
explanation of the basic setup required to go about collecting the data. John
Miles referenced this page http://www.ke5fx.com/tpll.htm, and
Usually phase detectors (we prefer to call them Time Interval
Analysers) have data interfaces (RS232, GPIB, LAN). If you build your
own then the interface is up to you: usually an RS232 is the best
choice. The software to use: take a look at the Miles' TimeLab
www.ke5fx.com/timelab/readme.htm or
what you want to measure is a time-series of either frequency data or phase
data.
the simplest possible case for a beginner would be to have two clocks with
1-PPS (one pulse per second) outputs, and connect one clock to the
start-input and the other to the stop-input of a time-interval counter. If
Anthony,
On 11/01/2014 02:29 PM, Anthony Roby wrote:
I've been reading a lot about ADEV and following the threads on the list,
particularly Karen's in-flight thread.
What I haven't come across is a simple explanation of the basic setup required
to go about collecting the data.
John Miles
Hi
The problem with setting up to measure any of this stuff is that it’s *very*
dependent on the gear you have. There’s no big surprises below. It’s all “spend
more money and have fewer things to figure out”.
First you need a way to measure frequency out of your mixer (there are LOTS of
ways
and running in the
next couple of weeks.
Anthony
-Original Message-
From: time-nuts [mailto:time-nuts-boun...@febo.com] On Behalf Of Bob Camp
Sent: Saturday, November 01, 2014 3:18 PM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Measuring ADEV for a beginner
: Re: [time-nuts] Measuring ADEV for a beginner
Anthony,
On 11/01/2014 02:29 PM, Anthony Roby wrote:
I've been reading a lot about ADEV and following the threads on the list,
particularly Karen's in-flight thread.
What I haven't come across is a simple explanation of the basic setup
required
ar...@antamy.com said:
I'll do a bit more digging around and see if I can get the GPIB up and
running in the next couple of weeks.
I've been happy with the ProLogic GPIB-USB gizmo.
https://www.sparkfun.com/products/549
It took some fiddling to get going, but I like chasing that sort of
: [time-nuts] Measuring ADEV for a beginner
Anthony,
On 11/01/2014 02:29 PM, Anthony Roby wrote:
I've been reading a lot about ADEV and following the threads on the list,
particularly Karen's in-flight thread.
What I haven't come across is a simple explanation of the basic setup required
to go about
