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ConfigureArbWaveform

I am using C++ code to control the PXI-5422 Function Generator via the IVI interface.
 
I am able to load, configure and generate an arbitrary waveform, however the gain that is applied to the waveform is always double the gain that I supply to the
IviFgen_ConfigureArbWaveform() function.
 
IVI waveforms are normalized from -1 to 1.  So if I supply a gain of 3 I expect to see a waveform with voltages from -3 to 3.
 
Currently, if I supply a gain of 3 to the IviFgen_ConfigureArbWaveform() function I am seeing a waveform with voltages from -6 to 6.
 
I've used two different scope view the waveform with identical results ( NI PXI-5922 digitizer and a desktop scope from another vender ).
 
Any ideas why I would be getting this behavior.
 
Thanks,
Anson Wooten
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Hello A Wooten,

Please see the response to your other post.
Gerardo O.
RF SW Engineering R&D
National Instruments
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