What is a "sweep test"?

[netarc]

When comparing RG6 cable, one often sees "sweep tested to # Ghz" (e.g., 3Ghz, 2.2Ghz, etc).

What exactly _is_ a sweep test, though? And for baseband video (composite, YPbPr) and audio, what's the highest frequency that the cable should support?

Finally - iirc (and pls correct if I'm wrong), baseband signals are typically at the lower end of the frequency range, while CATV and OTA transmission is at the higher end?

 

[mtrycrafts]

When comparing RG6 cable, one often sees "sweep tested to # Ghz" (e.g., 3Ghz, 2.2Ghz, etc).

What exactly _is_ a sweep test, though? And for baseband video (composite, YPbPr) and audio, what's the highest frequency that the cable should support?

Finally - iirc (and pls correct if I'm wrong), baseband signals are typically at the lower end of the frequency range, while CATV and OTA transmission is at the higher end?

Test signal Sweeping the frequency band for a response data. whatever the lowest they start to the top end, in these cases gHz