I have a silly newbie question, sorry for that.
Let’s say we have the following GNU Radio project:
The sink has some specified transmit frequency, in this example 30 MHz. Incoming IQ data is a sine wave with some frequency, here it’s 3 MHz. I’m guessing, the sink multiplies 3MHz signal by 30 MHz signal and take the upper part of the resulting signal (because of given CMIX mode).
Is it right or it works not the way I think?