Photon flux produced by synchrotron emission for different source injections. We chose an “anisotropic” distribution of the magnetic field with normalization B₀ = 1 nG. The source has a luminosity of L_E,19 = 10⁴² erg s^-1, and is located in the filament described previously, at a distance of 100 Mpc. The average flux integrated over all angular lines of sight are presented.