[time-nuts] Pulse generator recommendation

Rob Kimberley rk at timing-consultants.com
Thu Jul 14 18:06:08 UTC 2011


FWIW, I used to build and test Systron Donner 101s at their UK subsidiary in
the early 70's. Nice little box!

Rob

-----Original Message-----
From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On
Behalf Of J. Forster
Sent: 14 July 2011 6:55 PM
To: xformer at citynet.net; Discussion of precise time and frequency
measurement
Subject: Re: [time-nuts] Pulse generator recommendation

A Systron-Donner / Datapulse 101 or 101A is an old, but well performing
pulse generator.

Most pulse generators are not particularly precise, but many have an
"External Trigger" function that can be connected to a precise timing
source.

I'm doing exactly that, using a crystal oscillator at 1 MHz and a set of Tek
DD501s to simolate LORAN-A. I can easily set 40,000 uS to  1 uS.

-John

=============


> All,
>
> I've been wanting to buy an older pulse generator, but want an 
> accurate one, and probably one that I can connect to my GPSDO. I would 
> like one settable to 10 nS, but don't want it variable to there, but 
> switched between the different pulse rates. I looked at the older HP 
> generators, and they look to have slide pots to control everything, 
> including the time, and that killed them for me. I also looked at EH 
> and Phillips/Fluke, but am unsure on what would be the best for what 
> I'm looking for (certainly not new). Do any here have any thoughts on 
> this, or what to look for?
>
> Thanks,
>
> Will
>
>
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>



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