Hi Everyone, I have some strange behavior of gnuradio while trying to do an upconversion and multi-channel transmitter. I am currently trying to have two packet transmitters send packets simultaniously on two different radio channels. For this, I upconvert one of the transmitters and add the two signals together. Following is the code to connect the different blocks:
# interpolate the two transmitters self.connect(self.packet_transmitter1, self.interpolator1) self.connect(self.packet_transmitter2, self.interpolator2) # upconvert the first transmitter) self.connect(self.interpolator1, (self.multiplicator, 0)) self.connect(self.sin, (self.multiplicator, 1)) # add the two signals self.connect(self.multiplicator, (self.adder, 0)) self.connect(self.interpolator2, (self.adder, 1)) # send the signal to the USRP self.connect(self.adder, self.amp, self.u) #self.connect(self.adder, self.filesink) The code compiles, but I don't receive the messages on the other side. Therefore, I did some tests to check the different parts. The following connection works, i.e., the packet transmitter and its interpolation can be received at the other side: self.connect(self.packet_transmitter1, self.interpolator1) self.connect(self.interpolator1, self.amp, self.u) Now, if I add the following, it suddenly doesn't work anymore, even though the added connections should not affect the path to the USRP: self.connect(self.packet_transmitter1, self.interpolator1) self.connect(self.interpolator1, (self.multiplicator, 0)) self.connect(self.sin, (self.multiplicator, 1)) self.connect(self.interpolator1, self.amp, self.u) self.connect(self.multiplicator, self.filesink) Does anyone know why this could happen? Thanks a lot, Thomas _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
