Stokes-I 21-cm absorption spectra toward J1549+5038. The spectrum was smoothed over five consecutive spectral channels and normalized with respect to the peak flux density. The spectral resolution and rms noise in the smoothed spectra are 2.0 km s⁻¹ and 3.1 mJy beam⁻¹ channel⁻¹, respectively. The feature at 200 km s⁻¹ that looks like emission is due to weak RFI present only in LL.