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Re: [Discuss-gnuradio] Displaying the Magnitude on the scope
From: |
Eric Blossom |
Subject: |
Re: [Discuss-gnuradio] Displaying the Magnitude on the scope |
Date: |
Thu, 17 Nov 2005 10:27:01 -0800 |
User-agent: |
Mutt/1.5.6i |
On Thu, Nov 17, 2005 at 09:01:22AM -0700, Robitaille, Michael wrote:
> I now able to demodulate my signals and would like to view the magnitude of
> the output rather than the real/img. I tried to use the gr.complex_to_mag()
> operation and feed it in the scope_sink_f but I get a blank scope screen.
>
>
>
> u_mag = gr.complex_to_mag()
>
> self.connect(u_xlated, u_mag)
>
> scope_input = scopesink.scope_sink_f (self, panel, sample_rate= base_rate)
>
> self.connect ((u_mag, 0), (scope_input, 0))
>
> Does scope_sink_f need two inputs?
No.
Try setting it to trigger in "Auto" mode on the display.
You might also try hitting the "50%" button (sets trigger level to 50%
of min/max).
Eric