Hi. I'm trying to read a .dat file containing bluetooth (GFSK with +-250 KHz frequency deviation) samples and send them with an N210 using GNU companion. The problem that I have is that, when I send the file, I see lots of high power components in the adjacent frequencies around the actual transmitted signal (up to a few MHz around the actual frequency), which are not frequencies that I'm sending (consider it like harmonics/images of signal but I don't think they are images because my sampling rate is much higher than Nyquist. Also I the receiver is not saturating according to the "scope" part in uhd_fft). Also, I'm sure that these spare frequency components are coming from the transmitter N210 because I have isolated the environment. I appreciate it if you could help me figure out what might be the reason for these spare frequency components.
