is done for multiple hyperfine levels with full thermal averaging. The only adjustable parameters are the relative amplitudes of the three EIT resonances. As seen from the figure, the calculation reproduces the locations of the peaks in the measured spectrum. The observed linewidth is slightly larger than the calculated one, but this could be because of a small misalignment angle between the beams, which is known to broaden the EIT resonance [@CAT04]. The calculation shows that there is only one spurious peak within the spectrum. However, if we extend the calculation up to $+500$ MHz, we see all the seven peaks mentioned in the previous paragraph. The extended calculation is shown in Fig. \[theory\].

The advantages of this scheme are quite clear from Fig.\[satabs\](b). The spectrum appears on a flat background, obviating the need for Doppler subtraction as in the case of SAS. There are no crossover resonances, which often swamp the true peaks. And there is only one additional peak within the spectrum due to absorption by non-zero velocity atoms. In Fig. ref[coprop]{}, we show the effect of pump power on the peaks. As the power is varied from $0.33$ to $1.66$ times the probe power, the three main 