[time-nuts] buying a time interval counter

[Stéphane Rey]

Ji Jerry,
The Fluke exhibit a 100ps resolution whereas the SR620 has 25ps.
This is the main difference I see from datasheets.

cheers
Stephane

------ Message d'origine ------
De : "Jerry" <jsternmd at att.net>
À : "'Stéphane Rey'" <steph.rey at wanadoo.fr>; "'Discussion of precise 
time and frequency measurement'" <time-nuts at febo.com>; "'Brooke Clarke'" 
<brooke at pacific.net>
Envoyé 30/06/2016 17:01:50
Objet : RE: [time-nuts] buying a time interval counter

>How does the Fluke PM6690 (same as Pendulum CNT-90) compare to the 
>SR620?  A neighbor is selling one in perfect condition (per him) for 
>$900
>
>Jerry
>NY2KW
>
>-----Original Message-----
>From: time-nuts [mailto:time-nuts-bounces at febo.com] On Behalf Of 
>Stéphane Rey
>Sent: Thursday, June 30, 2016 10:07 AM
>To: Brooke Clarke; Discussion of precise time and frequency measurement
>Subject: Re: [time-nuts] buying a time interval counter
>
>Hi,
>I've ordered a SR620 with the option 01 (higher stability standard) 
>Should be there  in August Thanks Stephane
>
>------ Message d'origine ------
>De : "Brooke Clarke" <brooke at pacific.net> À : "Stéphane Rey" 
><steph.rey at wanadoo.fr>; "Discussion of precise time and frequency 
>measurement" <time-nuts at febo.com> Envoyé 29/06/2016 19:20:22 Objet : 
>Re: [time-nuts] buying a time interval counter
>
>>Hi Stephane:
>>
>>I traded my HP 53132A counter for an SR 620.  The 53132 has what I'd
>>call a user hostile interface, so if you are manually controlling the
>>counter the SR 620 has a huge advantage.
>>I also like the long display on the 620 which can be read from across
>>the room.
>>
>>PS Stanford Research is a company founded by physicists and makes some
>>really high quality stuff.  In fact some of the products
>>HP/Agilent/Keysight sells are repackaged SR instruments.
>>http://www.prc68.com/I/TandFTE.shtml#SR620
>>
>>The claim to fame for the HP 53132A is that it can make a frequency
>>(not time interval) measurement to 1E12 in a second.  Here's how to 
>>get
>>that same result with the SR620:
>>http://www.prc68.com/I/FTS4060.shtml#SR620Fast
>>
>>On the down side the printing functions on the 620 require an Epsom
>>printer.  Does anyone have a solution for that?
>>
>>PS SR also makes a 10 MHz crystal oscillator that has options trading
>>stability for aging as well as the EFC tuning polarity and range so as
>>to match other OCXOs.
>>http://prc68.com/I/TandFTE.shtml#SC10
>>
>>At one point they were looking into making a GPS time receiver where
>>the cable length calibration would be built-in.
>>
>>-- Have Fun,
>>
>>Brooke Clarke
>>http://www.PRC68.com
>>http://www.end2partygovernment.com/2012Issues.html
>>The lesser of evils is still evil.
>>
>>-------- Original Message --------
>>>Hello there,
>>>
>>>I'm planning to buy a such instrument in order to do some frequency
>>>stability measurement at work. The SR620 seems to be discontinued.
>>>What model still distributed would you think is good for that at the
>>>moment ?
>>>
>>>Thanks & cheers
>>>Stephane
>>>_______________________________________________
>>>time-nuts mailing list -- time-nuts at febo.com To unsubscribe, go to
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>>>and follow the instructions there.
>>>
>>
>
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