Spectra of emission from electrons in the gap in the split monopole magnetosphere in a low-luminosity RIAF with L = 8 × 10⁴⁰ erg/s around a black hole of the mass M = 3 × 10⁹M_⊙ and magnetic field B = 10³ G (top) and B = 10⁴ G (bottom). Red shows the synchrotron/curvature emission, blue and green show the inverse Compton emission, green corresponds to the photons that escape from the source, and blue shows the photons absorbed via pair production. A red arrow shows the normalisation uncertainty.