> Tom
>
> In comparing 2 oscillators do you mean
>
> 1) Connecting one oscillator to the FREQ STD input at the rear of the
> 5370A, selecting the external timebase and connecting the other
> oscillator to the Front panel FREQ/PERIOD input and then selecting
> frequency measurement which in eff
> Both links are great, thank you. Particularly, the 2nd one links to a
> program to isolate the noise of 3 oscillators from 3 pairs of
> comparisons. That's what I was looking for. Too bad the source code is
> not provided, but if the program works, that'll be fine.
The 3-cornered hat code loo
Hi Tom:
Thanks. Knowing about the secret door sure makes a difference.
Having Fun,
Brooke Clarke
w/Java http://www.PRC68.com
w/o Java http://www.pacificsites.com/~brooke/PRC68COM.shtml
http://www.precisionclock.com
Tom Van Baak wrote:
>>Setup Instruction 3) Set Front Panel switch to Int or
> Can you send me the pdf of the HP journal about the 5370?
> If it's too big to attach, can you upload it to my web site?
> dns: ftp.ko4bb.com
> login: manuals
> password: manuals
You can download the August 1978 issue directly from the HP Archive site
http://www.hparchive.com/hp_journals.htm .
> Setup Instruction 3) Set Front Panel switch to Int or Ext, but my clock
> has no front panel switch.
There are a whole set of cute switches behind the
bottom half of the front panel. Open the panel from
that tiny square cut-out on the lower left corner.
http://www.leapsecond.com/museum/hp59309a
Didier Juges wrote:
> Hi Bruce,
>
> Dr Bruce Griffiths wrote:
>
>> Didier Juges wrote:
>>
>>
>>> Dr Bruce Griffiths wrote:
>>>
>>>
>>>
Didier Juges wrote:
> I do not understand the signal on the rear trigger outputs. At
Hi Bruce,
Dr Bruce Griffiths wrote:
> Didier Juges wrote:
>
>> Dr Bruce Griffiths wrote:
>>
>>
>>> Didier Juges wrote:
>>>
>>>
>>>
I do not understand the signal on the rear trigger outputs. At the
moment, I have a single 10 MHz sine signal fed to the START cha
> I'm looking for the HP-IB commands (or better a manual) for the HP
> 59309A Digital Clock.
http://www.leapsecond.com/museum/hp59309a/bottom-label.gif
/tvb
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Hi Daun:
I found the sticker on the bottom of my clock, (although your image is
much much easier to read than the actual size one) but it's not at all
clear what some of it means. For example:
Setup Instruction 3) Set Front Panel switch to Int or Ext, but my clock
has no front panel switch.
Didier Juges wrote:
> Dr Bruce Griffiths wrote:
>
>> Didier Juges wrote:
>>
>>
>>> I do not understand the signal on the rear trigger outputs. At the
>>> moment, I have a single 10 MHz sine signal fed to the START channel, and
>>> the 5370 is set to TI, MEAN, SAMPLE SIZE 1, + TI ONLY,
Dr Bruce Griffiths wrote:
> Didier Juges wrote:
>
>> I do not understand the signal on the rear trigger outputs. At the
>> moment, I have a single 10 MHz sine signal fed to the START channel, and
>> the 5370 is set to TI, MEAN, SAMPLE SIZE 1, + TI ONLY, START channel
>> triggers on rise and
Didier
START and STOP selection is even more complex than I indicated.
START SOURCE STOP SOURCE REAR PANEL START TRIGGER REAR
PANEL STOP TRIGGER
Front panel START Front Panel STOP Front Panel START
Front Panel STOP
Front panel STOP
Didier Juges wrote:
> I do not understand the signal on the rear trigger outputs. At the
> moment, I have a single 10 MHz sine signal fed to the START channel, and
> the 5370 is set to TI, MEAN, SAMPLE SIZE 1, + TI ONLY, START channel
> triggers on rise and STOP channel triggers on fall, and ST
Dr Bruce Griffiths wrote:
> Didier
>
> Did you get my comment on HP5370A differential linearity errors.
> It made it to the list but I didn't receive a bounced copy.
>
> Bruce
>
>
> ___
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Dr Bruce Griffiths wrote:
> Didier
>
> You may also find this useful
>
> http://www.wenzel.com/documents/waveform.html
>
> There are some other items that may be of interest at:
>
> http://www.wenzel.com/documents/library.html
>
> Though you may not want to build the water barometer!!
>
> Bruce
>
Didier Juges wrote:
> Here are my $0.02...
>
> Magnus Danielson wrote:
>
>> From: Dr Bruce Griffiths <[EMAIL PROTECTED]>
>> Subject: Re: [time-nuts] How to measure Allan Deviation?
>> Date: Tue, 24 Oct 2006 10:52:21 +1300
>> Message-ID: <[EMAIL PROTECTED]>
>>
>>
>>
>>> Tom
>>>
>>>
Here are my $0.02...
Magnus Danielson wrote:
> From: Dr Bruce Griffiths <[EMAIL PROTECTED]>
> Subject: Re: [time-nuts] How to measure Allan Deviation?
> Date: Tue, 24 Oct 2006 10:52:21 +1300
> Message-ID: <[EMAIL PROTECTED]>
>
>
>> Tom
>>
>
> Hi Bruce,
>
>
>> In comparing 2 oscillators
Hi Tom,
comments are embedded:
Tom Van Baak wrote:
> Didier,
>
> I've been out of town and I see a flurry of postings to
> your original query about Allan deviation. It sounds
> like your goal is to measure the stability of various
> oscillators that you have lying around?
>
That's what happen
Hi there,
I concur, Ulrich's Plotter program is really great! And extremely fast too.
Ulrich, some points for additional features (maybe the latest version has
these already?):
* Settings such as trace color, Values Format, highlighted traces etc get
lost when re-loading the data fil
Didier
Did you get my comment on HP5370A differential linearity errors.
It made it to the list but I didn't receive a bounced copy.
Bruce
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Hi:
I'm looking for the HP-IB commands (or better a manual) for the HP
59309A Digital Clock.
Have Fun,
Brooke Clarke
--
w/Java http://www.PRC68.com
w/o Java http://www.pacificsites.com/~brooke/PRC68COM.shtml
http://www.precisionclock.com
___
time-
Didier Juges wrote:
> Hi Ulrich,
>
> comments are embedded:
>
> Ulrich Bangert wrote:
>
>> the Datum LPRO User's Guide / Installation Guide discusses some methods
>> of sine to square wave conversion in terms of lowest phase noise.
>>
>>
>>
> This is good to know. Do you have any sugges
Hi Ulrich,
comments are embedded:
Ulrich Bangert wrote:
> the Datum LPRO User's Guide / Installation Guide discusses some methods
> of sine to square wave conversion in terms of lowest phase noise.
>
>
This is good to know. Do you have any suggestion how I might get a copy
of the relevant pa
From: Dr Bruce Griffiths <[EMAIL PROTECTED]>
Subject: Re: [time-nuts] How to measure Allan Deviation?
Date: Tue, 24 Oct 2006 12:35:43 +1300
Message-ID: <[EMAIL PROTECTED]>
> Magnus
>
> The drawback with a CPLD is that most have a relatively high dc supply
> current.
The good old XC9536 will dra
There is a potential problem, particularly with the 5370A and possibly
the 5370B which may not be generally known.
1) Crosstalk between the microstriplines from the Schmidt trigger
outputs (XA4: U1, U2) to the arming board amplifier inputs (XA22: U19, U20)
2) Cross talk between the microstripli
Magnus
The drawback with a CPLD is that most have a relatively high dc supply
current.
I have a couple of CPLD designs that work the way you advocated.
A CMOS divider has the attraction that its power supply current can be
relatively small even when the (small duty cycle) output drives a 50 ohm
As a first submission to a collection of pathological PPS divider
designs where the input clock to output delay is so large that its
jitter and more particularly its tempco are significant I suggest that
the following:
Input stage HEF4017 with 10V power supply
clock to output delay 110 ns max a
From: Dr Bruce Griffiths <[EMAIL PROTECTED]>
Subject: Re: [time-nuts] How to measure Allan Deviation?
Date: Tue, 24 Oct 2006 10:52:21 +1300
Message-ID: <[EMAIL PROTECTED]>
> Tom
Hi Bruce,
> In comparing 2 oscillators do you mean
>
> 1) Connecting one oscillator to the FREQ STD input at the rear
Tom Van Baak wrote:
> Didier,
>
> I've been out of town and I see a flurry of postings to
> your original query about Allan deviation. It sounds
> like your goal is to measure the stability of various
> oscillators that you have lying around?
>
> First, your 5370 or any other TIC (Time Interval Cou
Didier,
I've been out of town and I see a flurry of postings to
your original query about Allan deviation. It sounds
like your goal is to measure the stability of various
oscillators that you have lying around?
First, your 5370 or any other TIC (Time Interval Counter)
will be adequate for this. I
Didier,
> I need to find the best way to go from the 10 MHz sinewave to the
> divider, probably through an LM119 comparator with modest
> hysteresis.
the Datum LPRO User's Guide / Installation Guide discusses some methods
of sine to square wave conversion in terms of lowest phase noise.
Since
Hi Dave --
I'll try to get it uploaded in the next day or two. I'll report back
the URL once I know what it will be.
73,
John
[EMAIL PROTECTED] wrote:
> Interestingly I asked around 50% of this question in person to John
> Ackermann at microwave update saturday afternoon. My special inte
Interestingly I asked around 50% of this question in person to John
Ackermann at microwave update saturday afternoon. My special interest was
what commands to send to the 5370a through the HPIB to generate the txt file
need by Alavar
John
Did you get round to uploading the .ppt...especially in
Robert Lutwak wrote:
> How's the timing accuracy?
>
> Does it display GPS time or does it have it's own clock?
>
>
> -RL
>
>
> Robert Lutwak, Senior Scientist
> Symmetricom - Technology Realization Center
> 34 Tozer Rd.
> Beverly, MA
Check out http://www.deluoelectronics.com/customer/home.php
The stuff is designed to work with a laptop via USB or Bluetooth, under
$100.
I tried it several years ago and found it OK, but I seldom get lost.
Regards,
Bill Hawkins
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