[time-nuts] buying a time interval counter
Jerry
jsternmd at att.net
Thu Jun 30 11:01:50 EDT 2016
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
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>
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