Editing QT GUI Frequency Sink

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The sink supports plotting streaming float data or messages. The message port is named "in". The two modes cannot be used simultaneously, and  should be set to 0 when using the message mode. GRC handles this issue by providing the "Float Message" type that removes the streaming port(s).
 
The sink supports plotting streaming float data or messages. The message port is named "in". The two modes cannot be used simultaneously, and  should be set to 0 when using the message mode. GRC handles this issue by providing the "Float Message" type that removes the streaming port(s).
  
== Parameters ==
+
Args:
 +
* fftsize : size of the FFT to compute and display. If using the PDU message port to plot samples, the length of each PDU must be a multiple of the FFT size.
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* wintype : type of window to apply (see gr::fft::window::win_type)
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* Center Frequency : center frequency of signal (only used for x-axis labels)
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* Bandwidth : bandwidth of signal (used to set x-axis labels)
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* Name : title for the plot
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* GUI Hint: See [[GUI Hint]]
  
; fftsize
+
Example Flowgraph:
: size of the FFT to compute and display. If using the PDU message port to plot samples, the length of each PDU must be a multiple of the FFT size.
 
 
 
; wintype
 
: type of window to apply (see gr::fft::window::win_type)
 
 
 
; Center Frequency
 
: center frequency of signal (only used for x-axis labels)
 
 
 
; Bandwidth
 
: bandwidth of signal (used to set x-axis labels)
 
 
 
; Name
 
: title for the plot
 
 
 
; GUI Hint
 
: See [[GUI Hint]]
 
 
 
== Example Flowgraph ==
 
  
 
[[File:Freq-sink-ex.png|700px]]
 
[[File:Freq-sink-ex.png|700px]]

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