Thank you for your answer :) Can you tell me more detail?
With my understanding, a rectangular pulse from the file source will be an envelope and by up-conversion, a sinusoidal signal will be in the rectangular pulse? I want to know more detail on the up-conversion, Especially, a waveform on the air. 2011/1/12 Nick Foster <[email protected]> > Songsong, > > The baseband signal you are transmitting will be upconverted by the > center frequency you specify in the USRP sink. In this case, the > signal's center frequency will be 450MHz. Likewise, the USRP source > center frequency you specify for the receiver will convert that > frequency to baseband for the rest of your receive flowgraph. > > --n > > On Wed, 2011-01-12 at 15:38 +0900, Songsong Gee wrote: > > I'm wondering whether my flow graph is working correctly. > > > > > > I think that my flow graph just send a baseband signal > > > > > > Sender > > flow graph / scope plot > > > > > > Recevier > > flow graph / scope plot > > > > > > Yes, it receives correctly. But my question is > > > > > > The sender seems to send just a baseband signal, not a signal whose > > center freq. is not 450 MHz > > > > > > I think that it need to be multiplied by sinusoidal signal... > > > > -- > > Seokseong Jeon (aka Songsong Gee) > > > > > > _______________________________________________ > > Discuss-gnuradio mailing list > > [email protected] > > http://lists.gnu.org/mailman/listinfo/discuss-gnuradio > > > > -- Seokseong Jeon (aka Songsong Gee)
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