[time-nuts] Power glitch - Sat morning

[Bob kb8tq]

Hi

At some point the rational question would be - how does this relate to timing? 

Getting a sound card so that it will do a reasonable job of time tagging edges
can be “fun”. My approach was always to feed a “known” signal into that second
channel …..

Bob

> On Mar 31, 2020, at 8:46 PM, Hal Murray <hmurray at megapathdsl.net> wrote:
> 
> 
> azelio.boriani at gmail.com said:
>> It helps to have a digitizer on the line, a 'scope to sample the line, say,
>> 20 seconds before and 20 second after a glitch. This way you can surely tell
>> what happened without any speculation. There are a number of ready made
>> digitizers (red-pitaya, digilent analog discovery, ...) 
> 
> The audio input on a PC also works.  With stereo, you can watch both sides of 
> the 120/240 line in a typical US house.
> 
> 
> -- 
> These are my opinions.  I hate spam.
> 
> 
> 
> 
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