[time-nuts] HP53132A vs SR625

Bob Camp lists at rtty.us
Fri Feb 8 01:39:11 UTC 2013


Hi

Normally a 625 is priced above a 620. Rubidium standards have a finite life. You are paying for the Rb when you buy a 625. If the Rb is worn out or nearly at end of life, the 625 is not a good idea.

Bob

On Feb 7, 2013, at 7:22 PM, Hui Zhang <ba6it at 163.com> wrote:

> Hello Dear Group:
> 
> 
>    I am very glad to see so many replies in the morning, and I am very grateful to every time nuts gave me useful information, your proposal has strengthened my determination, in fact, I am also very like SR625, So I will to find and buy a good shape SR625 for my new time interval measure instrument.
> 
> 
> Thanks again for everyone's advice, which is very useful to make a choice for me. Sorry for not reply everyone's mail. 
> 
> 
> Best Regards!
> 
> 
> Hui Zhang
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> At 2013-02-08 05:12:37,"Brooke Clarke" <brooke at pacific.net> wrote:
>> Hi Hui:
>> 
>> The HP 53132A is called a "Universal Frequency Counter" can count frequency at 12 digits per second, but that is not the 
>> case when it is measuring time intervals.  The human interface might be called user hostile.
>> 
>> The front panel of the SR 620 is marked "Universal Time Interval Counter" and is great for making time interval 
>> measurements. That's why I traded my 53132 for the SR620. http://www.prc68.com/I/TandFTE.shtml#SR620
>> 
>> If you're doing Time Nuts measurements you probably have a good 10 MHz oscillator that you can feed into either of these 
>> counters so getting an optional time base in one of them serves little purpose.
>> 
>> Have Fun,
>> 
>> Brooke Clarke
>> http://www.PRC68.com
>> http://www.end2partygovernment.com/2012Issues.html
>> 
>> Hui Zhang wrote:
>>> Dear Group:
>>> 
>>> 
>>>     I am intend to buy a second-hand counter, I have not decided yet between SR625 and HP53132A, they have very close price in surplus market of here, so, which is better choice? Any suggestion will be appreciated.
>>> 
>>> 
>>> Best Regards!
>>> 
>>> 
>>> Hui Zhang
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>> 
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