PC Ociloscop Help

[PhuocTran]

I downloaded PC ocsiloscope V2.51 from this page. But i do not know how it work.
Please help me the detail how to connect it. Using soundcard, how to setup the hardware and the software to measure the electrics equipement?.

Attach the detail picture is more helpful

Thank you so much.

 

[ante1]

PhuocTran,

Does your soundcard have a line-in connection?
You will need some kind of attenuator to reduce the input signal and to protect the soundcard.

 

[PhuocTran]

Ante,
I have done the schem to protect my PC but the question is how to use the sound card to measure. I am trying to do it -> in screen, i see some line, that is all.

I know that when measure something, the program will display the diffrent line?.

Help me the detail again, aplease.

 

[ante1]

Have you connected to the soundcard successfully? Have you tried to alter the controls of the on screen oscilloscope?

 

[trigger]

is the line-in muted?

 

[PhuocTran]

I did it all you say, not mute, line contact to line - in.
Still nothing. I try to measure somthing it always display the same SINE freq.