Reply To: Different performance on similar PC

We are using the following settings:
Center 869.525000 MHz
Span 70.000000 kHz
RBW 100.000000 Hz
VBW 100.000000 Hz

Both the PC have a I7-6700T @ 2.80GHz processor.
Please have attached images containing the Spike screenshot and system data.

Some additional useful (I hope) information:
– disabling spur reject the sweep time decrease to ~50ms on both the PC
– the sweep time on the PC 2 (the one with the higher time) changes systematically opening and closing Skype (!!): 400ms with Skype open, 375ms with Skype closed
– the sweep time on the PC 2, SOMETIME, decrease to 200ms (like the PC 1) for a few seconds, then goes up again to 400ms for minutes
– we have checked the sweep time on other 2 PC with similar hardware, and the sweep time is ~400ms on them too: we have just 1 “luky” PC with a small sweep time

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