neazoi
Advanced Member level 6
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Hi, I am trying to measure a signal level on a HP 54520A scope and I want to know if I follow the correct procedure.
The probe is 10:1 at 1Meg, I think it is passive.
I set the probe from the menu of the scope to 10:1
I connect the probe onto the scope input
I set the input of the scope (connector) on 1Meg (the scope can be set for 50R also)
I then do the measurement.
The first measurement is done on a high impedance source.
Does the displayed signal level on the screen of the scope displayed in the correct level?
The second measurement is done on a 50R source, that has a 50R resistor shunted to the ground internally.
I am doing this second measurement without changing anything on the previous scope setup, i.e. the scope is in high impedance mode.
Does the displayed signal level on the screen of the scope displayed in the correct level (and measurements would refer to 50R)?
What about when switching to the FFT, do I need to switch the scope to 50R with the high impedance probe in or just leave it on 1Meg?
This last one is very confusing.
The probe is 10:1 at 1Meg, I think it is passive.
I set the probe from the menu of the scope to 10:1
I connect the probe onto the scope input
I set the input of the scope (connector) on 1Meg (the scope can be set for 50R also)
I then do the measurement.
The first measurement is done on a high impedance source.
Does the displayed signal level on the screen of the scope displayed in the correct level?
The second measurement is done on a 50R source, that has a 50R resistor shunted to the ground internally.
I am doing this second measurement without changing anything on the previous scope setup, i.e. the scope is in high impedance mode.
Does the displayed signal level on the screen of the scope displayed in the correct level (and measurements would refer to 50R)?
What about when switching to the FFT, do I need to switch the scope to 50R with the high impedance probe in or just leave it on 1Meg?
This last one is very confusing.