Re: [Discuss-gnuradio] QT scope block?

[Marcus Müller]

Hi Rob,
> 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.

if you hover above these ports you'll see that the upper is "re" (real)
and the other is "im" (imaginary), which, typically, maps to I and Q.

> I transferred the png file to windows but the
> file name causes problems in windows.
Um, I think renaming a file shouldn't be that hard :) make sure you
attach .png; many file managers on Linux autodetect the content of a
file, no matter what the extension is (or if it's missing), but Windows
Explorer might be stuck in the 80s, feature-wise. Also, Unix filesystems
typically support UTF-8, but if you e.g. use a FAT32-formatted USB
drive, you might encounter problems...

Best regards,
Marcus

On 06/30/2015 04:52 PM, numeric wrote:
> 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
> address@hidden
> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio