Hi All,
I have a very simple requirement: I want to generate some random signal with 10MHz bandwidth, at the center frequency of 1GHz. How can I make this? 1) When I use "band PASS filter": [noise source]---[band PASS filter]---[qt gui frequency sink] The picture looks like a band REJECT filter. When I use "band REJECT filter": [noise source]---[band REJECT filter]---[QT GUI frequency sink] The picture looks like a PASS reject filter. I don't know what happened. 2) And I cannot make noise at centre frequency 1GHz. The filter block warns me: firdes checked failed: 0 < fa <= sampling_freq/2. But if I want to make the center freq at 1GHz, isn't it the sampling_freq should be 2GHz?! It seems to me that it is an too high (impossible) sampling_freq. Thanks and look forward to your help! -- Best Regards, Grandha Woodsend Radio Learner Interest Group
