How do I use a controlled source for a correct measurement?

#1 · June 5, 2025, 1:06 pm

@arcachofo gave me the tip to use the controlled source for high-frequency measurements.

How would I get the same reading on the lower oscilloscope as on the upper one?

How to use controlled source for measurements?
What is wrong about this setup?

Uploaded files:

#2 · June 5, 2025, 3:22 pm

seems that The chip is disabled: ENABLE is active low.