[Discuss-gnuradio] Help needed to obtain AM Depth of Modulation

Hi guys! I am trying to calculate the Depth of Modulation of an AM signal using GNU Radio, but I just can't make it work. To test, I am using a Rode & Schwarz SMB100M signal generator connected to a USB SDR receiver

Re: [Discuss-gnuradio] Help needed to obtain AM Depth of Modulation

You are totally right. I need it to be RF input independent, so I'll try following your advice. Thanks a lot! -- View this message in context: http://gnuradio.4.n7.nabble.com/Help-needed-to-obtain-AM-Depth-of-Modulation-tp63826p63838.html Sent from the GnuRadio mailing list archive at Nabble.co

Re: [Discuss-gnuradio] Help needed to obtain AM Depth of Modulation

Wow! Thanks for taking the time to put this together. I'll try following those steps and let you know how it goes. Thanks again! -- View this message in context: http://gnuradio.4.n7.nabble.com/Help-needed-to-obtain-AM-Depth-of-Modulation-tp63826p63839.html Sent from the GnuRadio mailing list

Re: [Discuss-gnuradio] Help needed to obtain AM Depth of Modulation

I've been doing some tests, and something strange is happening: - If I set the generator at 50% modulation depth and I simply plot the source input, I get this result , which is different from the graph from Wikipedia