Those measurement points are just the highest peaks. In the Bluetooth specifications it says, that the modulation is a GFSK with a bandwidth-bit period of BT = 0.5 and that the modulation index is between 0.45 and 0.55. Furthermore, it says that the frequency deviation is not less than 185kHz.
Can I, given these informations, calculate from where to where (Freq.) the transmitted data is?
EDIT: Maybe I should point out why I want to know this. I am downconverting this to the baseband and need to construct a filter. Normally I would filter this with a 0 to 1 MHz lowpass filter, but if the BW is less, it would be better for me.
EDIT 2: x-axis is frequency and y-axis power in dBm ;D.