[time-nuts] Counter display resolution

[WB6BNQ]

Mike,

Your statement about "counters" is rather general and misleading.  You need to
explain your comment better.

For instance, are your referring to the input signal or did you mean having the
internal reference frequency  offset from a standard value ?  All the counters I
have do not "auto-scale" which is what it sounds like your counter is doing.
However, you do not mention the word "scaling" or "auto" in your statement.

In all of my counters the digits displayed is what you get no matter what
frequency is being observed.  There is no gain in resolution by being slightly
lower then or any loss by being higher then some arbitrary point.

For the sake of the less skilled that might be on the list -server, could you
explain in more clear detail what you were eluding to ?

Thank you ... Bill....WB6BNQ

Mike Feher wrote:

> Bob -
>
> With most counters, I have found that running them at slightly less than 10
> MHz gives you an extra displayed digit of resolution. If the "1" out of 10
> MHz were to be displayed, it would take up one more digit in the MSD
> position, leaving you one less in the LSD position. Since the numbers are so
> close anyway, if measuring for stability, I personally would prefer that
> extra digit in the LSD position. Regards - Mike
>
>
>
> Mike B. Feher, N4FS
> 89 Arnold Blvd.
> Howell, NJ, 07731
> 732-886-5960
>
>
> -----Original Message-----
> From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On
> Behalf Of Robert E. Martinson
> Sent: Saturday, December 22, 2007 1:57 AM
> To: 'Discussion of precise time and frequency measurement'
> Subject: Re: [time-nuts] HP 5370B question
>
> I ran my 5370B for one hour, counting its own reference with a one second
> gate.  The summary of the results are:
>
> min     9999999.99650  Hz
> max     9999999.99963  Hz
> avg     9999999.99796  Hz
> median  9999999.99787  Hz
>
> Per the manual's  Performance Test 5 (page 4-12) the spec is +/- 0.005 Hz.
> It would be nice if my average was 10,000,000.000 HZ but??  From a Time-nuts
> thread of several months ago, the adjustment for this result is very touchy
> and it's likely you will make the result worse rather then better.  Since
> mine is in spec, I'll leave it alone.
>
> I have sent the graphical & raw data to Corby, if anybody else is interested
> please advise me of your email address.
>
> Regards,
> Bob Martinson, N1VQR
>
> -----Original Message-----
> From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On
> Behalf Of corby d dawson
> Sent: Wednesday, December 19, 2007 2:15 PM
> To: time-nuts at febo.com
> Subject: [time-nuts] HP 5370B question
>
> Hi,
>
> Could a few of the 5370B owners connect the counters reference output to
> its counting input jack and with a 1 second gate let me know what the
> last 2 digits are doing?
>
> An earlier post implied that the last couple digits will wander around
> due to the way its designed.
>
> I'd like to know what a couple different counters show to see if that is
> indeed true!
>
> Thanks,
>
> Corby Dawson
>
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