[Discuss-gnuradio] More Swept FFT

[William Pretty Security Inc]

Ok.

So I combined the suggestions from Josh and Marcus:

 

Variables:

decim:                  Value:   8

samp_rate:         Value:   100e6/decim

tun_freq:            Value:   56e6+(tune*1e6)

tune:                     Value:   0

 

Signal Source:

Output type:      float

Sample Rate:     samp_rate

Waveform:         Triangle

Frequency:         .01

Amplitude:         1

Offest:                  0

 

Variable Sink:     tune

Type:                     Float

Decimation:        decim

Vec Length:        1

 

Here’s what happened:

The FFT Sink block controls work, but the center frequency doesn’t change.

Also the arrow between the Signal Source and the Variable Sink is grayed out and I don’t know why ??

 

 

 

 

 

 

 

 

 

 

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