Hi Marcus, Thanks for your attention. I have upload a bigger size image below. the x axis is sampling point which reflects time and the y axis is margin which reflects the power. I plot the image from the rx block of the gen2_reader project. The signal is transmitted by the tx block of gen2_reader. The to_complex block is use to trasfer the float data to complex data for transmitting by tx block.
The input data of gr_multiply_const_ff block are the same, they come from the reader block. It's weird that the output data of gr_multiply_const_ff are the same in matlab image with different amplitude(bigger than 40 or not) but the signal tx block transmiting are not. I can't figure out how the amplitude in gr_multiply_const_ff block influence the signal in tx block without change the output data. By the way, we use a gen2_monitor with another usrp to get signal transmitted from the gen2_reader tx blcok, it has the same signal image to the rx block of gen2_reader. So, we can assume that there is no problem with our equipments Lee <http://gnuradio.4.n7.nabble.com/file/n45025/amp5000.png> -- View this message in context: http://gnuradio.4.n7.nabble.com/trouble-with-gr-multiply-const-ff-tp45018p45025.html Sent from the GnuRadio mailing list archive at Nabble.com. _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
