Hello Filippo,
Some other things you could check,
– Are they both running the same OS?
– Does one have active anti-virus?
– Are both using the high performance power plan configuration in the power options control panel menu?
– I’m assuming you have verified that the sweep configuration hasn’t changed? (same RBW/VBW/spur reject/etc)
– Is one i7 a laptop and the other a desktop? Laptops usually have slower clocks and might account for some of the difference.
– Is one application running in debug mode vs release mode?
An additional 200ms is a long time for the same sweep. The major things that contribute to sweep time is the device sweep speed limitations, USB transfer time, and processing time. Both USB and processing time should be small compared to the sweep speed limitations of the SA.
You could also compare your sweep time to the sweep time in Spike with the same configuration. If Spike sweeps substantially faster, it might be a configuration issue or something related to the C# FFI.
Regards,
Andrew
