Rune,
Running firmware NanoVNA-H__900_ch_20190924.dfu from hugen with nanovna-saver.v0.1.0
This firmware has TDR mode built-in to the device. If the TDR Transform is enabled in the device, data sent to the PC is not what you expect. It appears to be the result of the TDR transform in some form. However, frequencies are those most recently commanded to the device. I am not sure how to turn off the transform from the PC.
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Bryan, WA5VAH
