| 摘要 |
The present invention relates to an apparatus for relaying broadcast signal amplification for resolving radio wave shade regions within a house or a underground space by relaying the amplification by extracting a FM (or digital) radio broadcast band signal and a terrestrial DMB (TDMB) signal from an RF input terminal connected to a house terminal box of a broadcast-joint reception equipment. A uniform output level signal can be maintained by amplifying an RF amplifier and signals of each frequency amplified by the RF amplifier in multi-stage to feedback the DC components and automatically gain-controlling by a DC amplifier and a pin diode. |
