Hey everybody, I have some questions about the fundamentals of usrp_sink, and I am not finding answers in the docs. I am hoping one of you bright and supremely knowledgeable individuals would be willing to help me out, or point me to the right resources.
1) I am sending complex data to the usrp_sink with various magnitudes. What is the dynamic range of the usrp_sink? 2) Is there automatic gain control, or is the range fixed (i.e. not actually dynamic)? 3) For example, I am sending a constant signal at 2.45Ghz with an amplitude of 100, 1000, 10000, etc. What determines the signal strength as a fraction of the maximum power output coming out of the USRP? How much does this depend on the usrp_sink gain? 4) If I change the amplitude of the signal, does the output power scale linearly with the amplitude? Added bonus questions: 5) What is the frequency stability of the RFX2400. If I am emitting a constant tone, how many Hz can I expect it to wander? 6) I have 2 USRPs. One is feeding data to usrp_fft.py, the other is broadcasting a constant tone at 2.45Ghz. When the signal is picked up by the receiving USRP, the constant tone that is supposed to be at 2.45Ghz is actually at 2.45Ghz + 10Khz. Is this a horrible, horrible manufacturing defect or is this within expected tolerances? 7) I have read on this list that ISM bandpass filter on the RFX2400 limits output power of the RFX2400. Is this true, and if so, how can I remove the filter? I would appreciate any help the group could give me on answering these questions. -Ben -- View this message in context: http://www.nabble.com/usrp_sink%2C-dynamic-range%2C-and-tx-power%2C-and-more-tp15785878p15785878.html Sent from the GnuRadio mailing list archive at Nabble.com. _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
