Measuring Return Loss and SWR with a HP 415E, HP 778D or HP 8470B

I was asked to show how to use the HP 415E meter from my 415E Perf Testing video (   • HP 415E SWR Meter Performance Testing - Ra...  ) and while thinking about it I decided to expand the scope a bit to cover measuring return loss and calculating SWR with a few other pieces of HP test gear. You can measure return loss with an SWR Bridge, a dual directional coupler such as the HP 778D or via a HP 8470B Crystal Detector. The AT&T Archives video is located here:    • AT&T Archives: Similiarities of Wave Behav...   W2AEW's Visualizing RF Standing Waves video is here:    • #208: Visualizing RF Standing Waves on Tra...   [BTW you should subscribe to his channel] Finally, CalESG's video on a slotted line lab is here:    • Slotted Line Lab