[time-nuts] HP 58503A

Christoph Kopetzky dekagoon at gmail.com
Fri Aug 3 11:09:16 EDT 2012


Hal Murray <hmurray at ...> writes:


> We discussed this area a week or three ago.
> 
> You don't need a digital scope to determine if there is a pulse.  A digital 
> scope may help to see the pulse and figure out what it looks like.
> 
> With an analog scope, you can either look at the blinking light that tells 
> you it's triggering, or you can reduce the sweep speed until you can easily 
> see the (flat) line from the beam each time it triggers.
> 
> I can see a 10 microsecond pulse with my old Tek 465.  It blinks and I 
> roughly remember what the picture looks like.  If I want to know a detail, I 
> have to look at the right spot and wait for the next pulse.
> 


Hi Hal,

with my analog scope (Hameg HM2005-2) I can trigger a low level voltage
spike signal with  a p-p voltage of 30 mV and a frequency of 52,6 kHz.
Could that be real?
The signal level is very low, 30 mV...

Chris





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