Hi everyone,
I have question about my new oscilloscope and noises on my home electrical system.
I have purchased a very economic oscilloscope (HANMATEK DOS1102), seems works fine. But after I was surprise to see noise on oscilloscope signal when I switch on and off room light. That was very strange because the system that I was analyzing was a battery system. So I simplify the circuit max as possibile, I just connect the probe between AA battery poles, I switch again the light on and off (the light is controlled by step relay) and the noise appear again.
Is it possible that the oscilloscope have not any kind of noise filter on its power supply?!?
is it a normal behaviour?
tnx for help,
Marco
I have question about my new oscilloscope and noises on my home electrical system.
I have purchased a very economic oscilloscope (HANMATEK DOS1102), seems works fine. But after I was surprise to see noise on oscilloscope signal when I switch on and off room light. That was very strange because the system that I was analyzing was a battery system. So I simplify the circuit max as possibile, I just connect the probe between AA battery poles, I switch again the light on and off (the light is controlled by step relay) and the noise appear again.
Is it possible that the oscilloscope have not any kind of noise filter on its power supply?!?
is it a normal behaviour?
tnx for help,
Marco