Hi,
When I see the block diagram of USRP-2920, it has one stage mixer and DDC.
So i'm guessing the first mixer down converts to IF and DDC down converts it to the basband.
If it's right, what is the IF frequency center? or does it use direct conversion method? then what is the role of DDC?
Second question... on the spec sheet, it says frequency step(resolution) is below 1khz.
what is exact frequency resolution of USRP? and can you tell me the equation to get resolution?
Thanks.
