On Sat, Jan 11, 2020 at 03:47 PM, Leif M wrote:
I attached a Smith chart file with a -1690 delay, does it look good. It is
from a 36mm length of Teflon coax with open on other end. The delay seems long
at least.
Your plot should be a little tighter together. Did you calibrate the NanoVNA before attaching the cable?
The plots below are 30 cm of RG316 with an open BNC connector on the end. One up to 299 MHz. and the other up to 900 MHz. offset delay was set to -1536 ps and no calibration done in NanoVNA saver.
Roger