Unwanted gain created by AFG3022 Function Generator Instrument driver Example VI

[SRoy6]

I was using the 'Create Standard waveform' example VI of AFG3022 function generator. I was able to create a waveform but the gain of the waveform looks 5 times less on a scope. For example, if I create a 5 Vpp square wave of 150kHz through the example VI, it looks like a 1Vpp, 150kHz square wave on my scope. Why does this happen and how can I get rid of the gain?

[kbbersch · Accepted solution]

Does the impedance setting for your scope input match the probe impedance?  I've seen this when the input impedance was wrong on the scope.

[Dennis_Knutson]

And what is the output of the 3022? I suspect it's 50 ohms so obviously the scope will read a different amplitude. It doesn't sound like you have a LabVIEW problem at all. You can set the amplitude manually to verify it has nothing to do with any code.

[SRoy6]

You're right ... It was the impedance setting , but on the probe which was messing up my measurements!