Today I ran uhd_fft.py in two usrp and two usrp2.They were in the same room and placed at a distance of 2-3 meters from each other(approx) but there was much difference in the fft.
Actually there was a peak at 2.432G . Both usrp detected well but there was some confusing display from usrp2 under uhd_fft.py. usrp2s also detected the peak but there was a significant rise on the left side in both the usrp2.I checked with RFX2400 and XCVR2450 both. Here is the fft for both usrp2 under uhd_fft.py http://old.nabble.com/file/p32438830/usrp2_1.png Also in the figure below its detecting two peaks. http://old.nabble.com/file/p32438830/usrp2_2.png Also sometimes it went like this http://old.nabble.com/file/p32438830/usrp2_2_1.png At the same time the display from usrp under usrp_fft.py was perfect. I am using RFX2400 as well as XCVR2450. Although there is some problem with the second usrp.Despite of elevating the gain and changing the positions the peak is not getting sharp and high. :) http://old.nabble.com/file/p32438830/usrp_1.png http://old.nabble.com/file/p32438830/usrp_1_2.png What may be the reason.... Placement of the usrp's or some hardware fault ? ----- Sumit Kr. Research Assistant Communication Research center IIIT Hyderabad India -- View this message in context: http://old.nabble.com/Confusion-with-uhd_fft.py-with-usrp2-tp32438830p32438830.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