Muon neutrino spectra produced by hadrons which are accelerated at the shocks from the side of the companion star up to energies of 5 PeV (solid curve) and the side of the Eta Carinae star up to energies of 250 TeV (dashed). Hadrons from the side of the Eta Carinae star interact with the matter of dense wind close to the shock region within the binary system. Hadrons from the side of the companion star escape from the shock region into the nebula and interact with the matter of expanding stellar wind and the matter within the nebula expelled in the past. The power law spectrum of hadrons is applied with the spectral index equal to 2. The neutrino spectra are normalized to the hard γ-ray spectrum observed from the Eta Carinae binary system assuming its hadronic origin via pion production. The range of the atmospheric neutrino background (vertical and horizontal) within 1^o degree of the source is marked by dot-dashed curves (Lipari 1993). The 1 yr sensitivity of the km² neutrino detector (expected for the IceCube detector) is marked by the thin dotted line.