Hi All, I am confused on this reply. The reply said that "With the RFX2400, and most of the high frequency usrp daughtercards, there is no IF frequency". How is that possible? For RFX2400 the RF range is from 2.3GHz to 2.9GHz, the ADC rate for USRP1 is 64MS/s. If there is no IF frequency, the ADC rate is obviously too low. There must be RF front-end on the daughterboard to tune the RF to the IF. Right? If so, my question is what the IF is? Obviously, f_IF = f_RF - f_LO. (1) Are we setting the f_LO when we tune the usrp by usrp.tune(self.u, 0, self.subdev, target_freq)? (2) How to figure out f_IF for different daughterboards?
Thanks in advance, Brook Jason Uher wrote: > >> If I am using RFX2400 then what is the IF frequency and can we change >> this >> to some other value? Correct me if the question I asked is wrong. > > With the RFX2400, and most of the high frequency usrp daughtercards, > there is no IF frequency. The samples you receive (or send) from the > usrp.source_x (or usrp.sink_x) are baseband I and Q values. > > Jason > > > _______________________________________________ > Discuss-gnuradio mailing list > [email protected] > http://lists.gnu.org/mailman/listinfo/discuss-gnuradio > > -- View this message in context: http://old.nabble.com/Intermediate-frequency-question-tp23514126p32598120.html Sent from the GnuRadio mailing list archive at Nabble.com. _______________________________________________ Discuss-gnuradio mailing list [email protected] https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
