METHOD AND DEVICE FOR DELETING GHOST

PURPOSE:To automatically delete the ghost fault for each reception channel without installing two antennas and to automate the delay, phase-shift, and attenuation adjustment of received radio wave according to the outside state. CONSTITUTION:The device is provided with a distribution circuit 11 deviding the incoming radio wave into two, branching filter circuit 12 which branching one radio wave for each reception channel, plural signal generation units Un (n=1 to n) generating a ghost deletion signal for each reception channel based on the branched radio wave, and mixing circuit mixing the generated ghost deletion signal and the incoming radio wave and deleting the ghost signal component for each reception channel. The signal generation unit Un is provided with a delay circuit delaying the arrived radio wave, phase-shift circuit shifting the incoming delayed radio wave, and attenuation circuit attenuating the phase- shifted radio wave.