PURPOSE: To expect complete acquisition, to constitute an unattended system and to attain man-hour saving and quick response by adopting the system that pseudo acquisition due to error components of a frequency region is discriminated and the corrected acquisition is controlled.

CONSTITUTION: When an objective satellite 10 being an object of acquisition is commanded externally, a pseudo acquisition discrimination/correction control section 40 commands and sets a reception equipment PLL having a slightly larger frequency than a frequency difference Δf between a main carrier frequency f0 of a spectrum of the satellite and a subcarrier frequency, the main carrier frequency and a VCO sweep width W to a reception equipment. After they are set in advance, when a wave is received from the satellite 10, since the reception equipment 30 is in PLL lock-on-state, the section 40 inputs a reception level 420 of down-link, a receiver PLL lock state 400 and a frequency error 410 of the PLL in the reception equipment and collates the frequency error 410 of the PLL in the reception equipment with PLL lock-on-state with the reception frequency. Then the pseudo acquisition discrimination is applied in the frequency region and the frequency error corresponding to the result of collation is corrected to the reception frequency for re-acquisition.