On Wed, Sep 18, 2019 at 02:43 PM, <erik@...> wrote:
Should you compare with isolation measured with 50ohm or isolation measured
far from 50ohm????
Don't confuse isolation with noise. Noise doesn't depends on a leak from the second channel. Noise is independent.
If you want to calibrate isolation, you're needs to reduce noise by terminating input with 50 ohm load.
If you want to cancel noise caused by high impedance on the input during measurement... I don't know if it's possible at all. Probably it is impossible :)
