[time-nuts] Re: HP5328B TI avg showing half value

[Magnus Danielson]

Hi,

So I fiddle around at 100-400 ns and readout turns out linearly at about 
half value.

The frequency is 100 kHz of the pulses, which can be tweaked, but for 
the moment fits is purpose.

Now, turns out that using manual setting of trigger-offset rather than 
auto removes the issue. I've not concluded exactly why, but it does. 
Will grabb the other 5328 to see if it does about the same.

Maybe I need to trim up the input side?

For reference, using TTL signal levels for this, terminate with 50 Ohm.

Cheers,
Magnus

On 2023-04-18 16:36, Bob Camp wrote:
> Hi
>
> How big a delay are you looking at?
>
> Bob
>
>> On Apr 18, 2023, at 6:32 AM, Magnus Danielson via time-nuts <time-nuts at lists.febo.com> wrote:
>>
>> Fellow time-nuts,
>>
>> As I was testing a HP5328B in TI avg mode, it displays about half the value expected. I pulled out a SR620 to verify the proper time-delay.
>>
>> I'll pick up my HP5328A with option 040 and check that one.
>>
>> While I will dig into this, maybe someone remembers seeing this.
>>
>> I'm not ruling out handling error or hardware error, but for the moment the signal seems OK at least.
>>
>> Cheers,
>> Magnus
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