For three weeks, a high-value microwave link between two financial data centers had been dropping packets. Not enough to trigger a full alarm. Just enough for traders to complain about “slowness.” Vendors blamed the weather. Managers blamed the hardware. Marta blamed ghosts.

The Ghost in the Sweep

Moral of the story: In RF engineering, the fault you don’t log is the one that destroys your uptime. The Anritsu Trace Viewer doesn’t just show you what’s wrong now —it shows you what went wrong while you were looking away .

Marta held up her laptop, the Trace Viewer still open, displaying the ghostly scar of the fault.

She froze the playback. Zoomed in.