[Discuss-gnuradio] USRP downconversion

[Viktor Przebinda]

Hi,

I have a simple question on the USRP. When setting fpga digital 
down-conversion frequency to zero via set_rx_freq method why do I get 
nonzero (and changing) values in the imaginary channel? Seems like 
these should all be zero since sin(0)==0 ??

Thanks,
Viktor