  We present some results on the radiative signatures of the one zone hadronic
model. For this we have solved five spatially averaged, time-dependent coupled
kinetic equations which describe the evolution of relativistic protons,
electrons, photons, neutrons and neutrinos in a spherical volume containing a
magnetic field. Protons are injected and lose energy by synchrotron, photopair
and photopion production. We model photopair and photopion using the results of
relevant MC codes, like the SOPHIA code in the case of photopion, which give
accurate description for the injection of secondaries which then become source
functions in their respective equations. This approach allows us to calculate
the expected photon and neutrino spectra simultaneously in addition to
examining questions like the efficiency and the temporal behaviour of the
hadronic models.
