[time-nuts] HP 5372A

Jerry Hancock jerry at hanler.com
Fri May 11 13:52:26 EDT 2018


If you were in Connie’s back yard or had a very stable ground wave, then yes, you could automate the testing.

There are a number of challenges with this method as looking at the data with a simple graph will tell.  You might have large fluctuations on the high frequency side only, for instance, that any averaging or algorithm would assume to be valid data.

The next issue is the length of the dataset as the key-down time is only a few minutes so you end-up with not that many samples.  

Regards,

Jerry

> On May 10, 2018, at 5:59 AM, Don Murray via time-nuts <time-nuts at febo.com> wrote:
> 
> Hi Magnus...
>  
>  
> Appreciate any help!
>  
> I participate in the ARRL Frequency Measuring Test,
> and I would like to automate the measuring process.
>  
> I have two frequencies, A and B...
>  
> A is a GPS locked HP 3336B set to 455,000.000 Hz
>  
> I use the 3336B instead of the 455,000Hz BFO
> signal from my GPS locked Racal receiver so
> that I can measure AM stations without the
> annoying beat note.  ;-)
>  
> B is an IF signal which should appear between
> 455,000.000Hz and 455,001.000 Hz
>  
> I would like the 5372A to calculate the B minus A
> delta, over a manually started and automatically
> stopped measurement period of 110 seconds.
>  
> I would like a delta resolution of 0.001Hz to be
> developed by the box.
>  
> Now, there will be doppler.  I want the box
> to analyze and give me a best statistical guess
> for the B minus A delta.
>  
> BTW the B minus A delta will be added to the
> frequency of my Racal receiver to give me the
> best "guess" as to the correct frequency of the
> target signal.
>  
> The Racal reads out to the Hz, and I am able to
> accurately determine if the Racal is tuned above
> or below the "target" frequency.
>  
> I will be tuned below the "target" and within
> 1 Hz of the "target."
>  
> I assume I will be in the one frequency mode.
>  
> Can the box give me the desired resolution?
>  
> What sampling period would be the best to use?
>  
> What statistical result would I use as my delta?
>  
> Appreciate your help.  My head is spinning whenever I
> get into the operating manual!
>  
> TNX...
>  
>  
> 73
> Don
> W4WJ
>  
> In a message dated 5/10/2018 2:19:49 AM Central Standard Time, magnus at rubidium.dyndns.org writes:
> 
>  
> Hi,
> 
> What issues do you have?
> 
> Cheers,
> Magnus
> 
> On 05/08/2018 02:32 AM, Don Murray via time-nuts wrote:
>> Hello Time Nuts...
>> 
>> 
>>  
>> Who is the resident expert on the HP5372A?
>>  
>> I have some operational questions.  ;-)
>>  
>> email off list please.  w4wj at aol.com
>>  
>> TNX all...
>>  
>> 73
>> Don
>> W4WJ
>>  
>>  
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