Hi all!
Is there anyone who can be so kind as to give me some help to make my device work again or at least tell me what has happened to my device?
I have a NanoVNA V2_2 - SAA-2N with the DiSlord firmware, version 1.0.69 - build time: Jul 31 2021 - 12:27:19.
The device has been working without problems for a long time, last time was yesterday or the day before. When I turned the device on today, I got a "strange" screen. I have always had a small point at the right in the smith-chart when input is open, a small point in the middle with 50ohm connected and a small point at the left, when shorted. Today I got something else! Please have a look at the pictures below. The open point is "big", 50ohm is smaller and short is still a small point. If I do a measurement, I get the correct "form", but the curve is not as "clear" line as I had earlier? I tried to load an older firmware, but the result is the same. I think there is a hardware error...
I will be very grateful for all the advice and views to solve the problem!
Karl Jan - LA3FY
