In the theme for the week, I caught my leg on a BNC cable and dropped the Moku from benchtop height . Tried to convince myself nothing broke by measuring white noise from an SRS function generator, and comparing the LD driver current noise spectrum to that measured by HP 8560E. There's a spurious peak (floating inputs) on ch 1 at 356 MHz (attachment 1), though this is not the first time I've noticed something similar. Still, it's troubling; when I send the current noise from SR560 to either channel of Moku, the peak remains in the signal-carrying channel, even though the signal is well above the noise floor.
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