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Can someone help me test IMD?

ShiZo

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I keep trying to test IMD on my RME ADI 2/4 and I keep getting a flat line like this. I'm basically trying to run the same test Amir runs that can be used to show the ESS IMD hump. dB always stays at 0



1747795453424.png
 
Last edited:
Try rescale the vertical axis from -1600 to 3400 dB to something like - 100 to 0 dB and see what the curve looks like.
 
Try rescale the vertical axis from -1600 to 3400 dB to something like - 100 to 0 dB and see what the curve looks like.
Oh sorry, I Just scrolled back a lot to get the pic. It doesn't matter the scale, it stays at 0 db
 
I keep trying to test IMD on my RME ADI 2/4 and I keep getting a flat line like this. I'm basically trying to run the same test Amir runs that can be used to show the ESS IMD hump. dB always stays at 0



View attachment 452380

It seems to measure correctly:

1747861328559.png


Please use the mouse wheel over the axis units to zoom both axis independently (The red arrows) and post a new screenshot:

1747861783985.png
 
Last edited:
Okay, you guys were completely right. It was just the fact I wasn't doing independent scaling via each side to see what was going on. Thank you for all your help!


1747866038251.png
 
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