Thank you Marcus. I tried again to implement your suggestion. This time I had success! Thank you! However, I had to make changes. I set the constellation sink for 2 inputs and added a second float to complex block. This provides a Y (or vertical) scope input representing the waveform R + J*X. Where R is the "real" component of the VNA reflection component and X is the "imaginary" component of the reflection component. They are both plotted on the same axis. The orthogonal scope axis is the driving VNA VCO waveform (used a sawtooth) and is the same waveform for R and X reflection parts. The ambiguous part: The float to complex provides two float input ports and one complex output port. I believe the top float port is the "in-phase" and the bottom float port is the "quadrature-phase" port. I need to document further what I did, a picture, as they say, is worth a 1000 words. I have a screen shot of the waveform and GRC flow diagram. I transferred the png file to windows but the file name causes problems in windows. However, at this time I have another project to complete first. Thank you for your help, Rob
Marcus Müller-3 wrote > I don't know how you want to trigger your Oscilloscope in X/Y mode -- > hence I used the "Free" trigger mode, to generate the lissajous figures > I sent you. What's wrong about them? If you describe what you're > expecting, we might find a solution together. -- View this message in context: http://gnuradio.4.n7.nabble.com/QT-scope-block-tp54482p54524.html Sent from the GnuRadio mailing list archive at Nabble.com. _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
