NanoVNA 75 Ohm Calibration

This video covers how to properly calibrate the NanoVNA for testing 75 Ohm devices. I cover 50 to 75 ohm minimum loss pads, calibration standards, proper calibration techniques and the proper calibration method for the NanoVNA. I also show what happens when you do not use 50 to 75 ohm minimum loss pads in the calibration of the NanoVNA. Finally, I discuss how to interpret S11 and S21 parameters. Links NanoVNA-H (upgraded model that goes to 1.5 GHz, will be shown in my next video): https://amzn.to/35gfoka 75 Ohm Terminators: https://amzn.to/3njE7Ky 50 to 75 Ohm minimum loss pad: https://www.fairviewmicrowave.com/mat... SMA Cables: https://amzn.to/3hMdEEp SMA to SMA adapter (barrel): https://amzn.to/2L8jHHr 8 mm wrench: https://amzn.to/391jvlr Type F to N adapter: https://www.fairviewmicrowave.com/75-... Table of Contents 0:00 Intro 2:09 75 ohm Terminators 4:24 50 to 75 Ohm minimum loss pads 5:30 The calibration setup 8:29 75 ohm calibration with professional cal kit 16:42 Device Under Test - Arcom Filter 18:00 Calibration Recommendations 18:43 Interpreting S11 - Return Loss 23:00 Re-calibrate with homemade cal kit 26:58 Comparison of pro cal kit vs. homemade cal kit 30:00 Calibration without 50 to 75 Ohm minimum loss pads 31:46 Results of calibration without 50 to 75 Ohm minimum loss pads 33:00 Observations of 50 ohm adapters 34:00 Summary and Conclusions