[time-nuts] Need for a document comparing time interval counters

Bob Camp kb8tq at n1k.org
Wed Nov 23 08:12:01 EST 2016


Hi

In a market that only *has* two competitors doing new gear and each only has a single high end
counter …. there’s not a lot to talk about. At this point it’s not really clear if the Pendulum designs 
have a future at all. That would get you down to one still doing new designs. 

Sorting out surplus will always be a matter of “the new one is better” (as long as it’s higher priced). 

Bob

> On Nov 23, 2016, at 5:47 AM, Dr. David Kirkby (Kirkby Microwave Ltd) <drkirkby at kirkbymicrowave.co.uk> wrote:
> 
> On 21 November 2016 at 21:10, Bob Camp <kb8tq at n1k.org> wrote:
> 
>> Hi
>> 
>> With both counters running on the same external standard (and no internal
>> OCXO), the 53230
>> beats the 53132 both on frequency and time. It also has slightly better
>> isolation of the 10 MHz
>> internals so the “dead zone” at 10 MHz is not quite as bad. I have no idea
>> how either one
>> works with the OCXO option … I’ve never seen either one with an OCXO.
>> 
>> Bob
>> 
> 
> This sort of information is useful. Perhaps a Wiki is the best document,
> where people can put comments like this. I don't have a Wiki set up myself,
> but I'd guess the sort of information one would want would be:
> 
> * Description
> Described what a TI counter is
> 
> * Uses
> No doubt with an emphasis on time nuts uses, but I don't see any need to
> restrict it just to that. (I did consider using one of mine to record the
> speed of the traffic near my house!)
> 
> * Understanding the specifications and their importance.
> Lots of them.
> 
> * Items to be considered when purchasing new vs used.
> 
> * Description of model X
> Include any options that are available for model X.
> Also any known issues - e.g. for both the SR620 and 8970B, they do in my
> experience run quite warm.
> 
> * Description of model Y
> * Description of model Z
> 
> Table comparing specifications between all models
> 
> * Models worth considering if your budget is < $250
> * Models worth considering if your budget is < $500
> * Models worth considering if your budget is < $1000
> * Models worth considering if your budget is < $2000
> * Models worth considering if you budget is unlimited.
> 
> * Conclusions.
> 
> 
> 
> 
> Dave
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