Hello all. Have had this VNA for a while and never used it much. Plugged it in to charge after a couple of years. Did well. Went thru all the usual calibration steps as always did in the past. Problem: No trace activity at all. I formatted it on the Smith chart and the trace is all over everywhere. I mean like a piece of broken glass, not the usual EKG type pattern. SWR format, straight line in the middle of the screen. No movement at all when connected to any antenna. Unit does not seem to recognize any input. It does seem to calibrate, but then again how would I know? Right. Before I post photos of the screen activity, I am in hope that someone can at least give me an idea as to the neighborhood of a problem.... No problem if it is junk as I bought this as an impulse buy and quickly found it to be a novelty item for me. Very frail to use in field.
Re-visited the use as I was going to give it to a new radio gadget friend. Might be garbage worthy...
Thanks and appreciate any feedback.
Tim? W4ADC
