Comparison of the hadronic model of the gamma-ray emission at the base of the FBs with CTA and KM3NeT for a source with 2° radius (Ambrogi et al. 2018). The minimal (min) and maximal (max) models correspond to the minimal and maximal models in the hadronic scenario in Table 4 (for the maximal model we assume a cutoff in the proton spectrum at 1 PeV) integrated over a 2° circle to transform intensity to flux. The KM3NeT sensitivity is for muon neutrinos only. In estimating the sensitivity, we take intoaccount that the GC is below the horizon for about two-thirds of the time at the KM3NeT location in the Mediterranean Sea.