[Discuss-gnuradio] Does DDC perform complex multiplication?

[Chris Stankevitz]

I found two diagrams which seem to indicate different kinds of 
multiplication:

http://www.nd.edu/~jnl/sdr/docs/tutorials/6.jpg

http://www.gnu.org/software/gnuradio/doc/ddc.png

I hope the DDC performs complex multiplication because I am feeding it 
with one real signal (via BasicRX A:0) and would like to use both I and 
Q outputs in my application.

Chris