Hi, I have a question about the basic RX/TX boards. What should I see if I hook the basic TX board to an oscilloscope if I send out a QPSK signal? Here is what I do: - I generate a QPSK signal in GnuRadio - I send the signal to a complex file source and the signal looks right - I send the signal to the complex USRP source and have a BasicTX on it. The outputs TXA and TXB are hooked up to a oscilloscope on channel 1 and 2 respectively.
Now, what should I see on the oscilloscope? Is it the baseband signal? How does the I and Q phases get mixed together? Does that depend on the mux values? Unfortunately I couldn't find a good block diagram of the TX path on the wiki, i.e., the link to [A system block diagram of the USRP receiver and transmitter path] on the wiki page "http://www.comsec.com/wiki?UniversalSoftwareRadioPeripheral"; is dead. Cheers, Thomas _______________________________________________ Discuss-gnuradio mailing list [email protected] http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
