| 摘要 |
<p>PURPOSE:To facilitate installation work by building a booster for amplifying received signal into an antenna wire lead-in unit thereby obviating the necessity for installing a booster individually. CONSTITUTION:The antenna wire lead-in unit incorporates a mixer 52 for mixing outputs from UHF and VHF antennas, and a booster 50 for amplifying signals received through these antennas. The booster 50 comprises amplifying circuits 51a, 51b for amplifying signals received, respectively, through UHF and VHF antennas. Outputs from the amplifying circuits 51a, 51b are mixed through the mixer 52. This constitution obviates the necessity for installing a booster individually thus facilitating the installation work.</p> |
