Forum: GNU Radio -ve amplitude value in wx fft sink spectrum

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2dfbe3d8cda5863e738cb102e3afce04?d=identicon&s=25 Pitter M. (Guest)
on 2016-05-03 07:02
Attachment: fft_sink.png (100 KB)
Respected members
I am new in GNU radio and i just want to share about one problem i came
across related to the WX FFT SINK spectrum i.e. how can i get +ve
values of the fft spectrum(signal amplitude)? The values i got were
always -ve (the spectrum is shown below the 0 db amplitude)whatever the
flow grapths were. This question might had been discussed earlier but
anyone plz suggest me what can be the solution. Which parameter should i
need to change?

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