The new Zoom 5370 modem I got has a built in Spectrum Analyzer, the page for it is on port 22267. Feature of the Broadcom chipset used by the modem.
Below is a screen cap, red arrow and question mark added by me. So, what is "Birth Certificate" and why is there an button to Capture data for said birth certificate. I assume it is a snapshot of current signal quality on the cable? But what is it used for and why would it be called a birth certificate ?