[Discuss-gnuradio] Measuring the Level of a Peak in a Signal

[George S. Williams]

I imagine this is doable, but between experimenting and Google I have 
not been able to find a solution. The application is fairly simple- a 
FCD is connected to a QT GUI Sink. The FCD is tuned to the pilot 
frequency of a ATSC television channel. The attached image shows the 
resulting spectrum. The application is intended to assist in pointing an 
antenna to receive television broadcasts in a rural area.

What I would like to do is measure the peak and display a number that 
represents its level. I have been able to average the entire signal but 
can't figure out how to measure the peak. Any advice would be appreciated.

Thanks,
George

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