This video takes a look at performing a return loss sweep on a set of IBCrazy 2.4 GHz Bluebeam Ultra antenna set.

 
Sweeping is performed using a PC Driven Windfreak SynthNV.

The Windfreak SynthNV is a 34.4MHz to 4.4GHz software tunable RF signal generator controlled and powered by a PC running Windows XP, Windows 7, or Android via its USB port.

It includes an on board RF power detector which can be used with the sweep function as a basic RF network analyzer.