Hi, good video. I have a question after watching your video. Let's say i received a RF signal(which usually use FM )which has centre frequency at about 87.6 Mhz, why does ADC output IQ two channels data, even If FM doesn't generate IQ signal as digital modulation like QAM? Thanks in advance.
@@weichen383 Hi, thanks. Sorry, I saw this late. The reason is the SDR is using two ADCs. It is still one channel, but a complex number having two parts (2D). You will always get the 2D sequence which represents one channel. By the way, this is independent of the waveform being received.
Cool, great video 😊
A perfect professor
Hi, good video. I have a question after watching your video. Let's say i received a RF signal(which usually use FM )which has centre frequency at about 87.6 Mhz, why does ADC output IQ two channels data, even If FM doesn't generate IQ signal as digital modulation like QAM? Thanks in advance.
@@weichen383 Hi, thanks. Sorry, I saw this late. The reason is the SDR is using two ADCs. It is still one channel, but a complex number having two parts (2D). You will always get the 2D sequence which represents one channel. By the way, this is independent of the waveform being received.
Have you worked with AD9361 SDR transceiver from Analog Devices?
Yes, as used in the Adalm pluto and some USRP devices.