FM Amplified Antenna (150-1833) Features Faxback Doc. # 7384 Power Indicatior: Lights when the power is on. GAIN LO/HI Switch: Lets you select "LO" or "HI" gain, depending on signal strength. Tuning Selector: Selects the desired frequency. 75-Ohm Antenna Output with Matching Transformer: Connects the antenna to your receiver. Supplied AC Adapter: Powers the antenna. (CJD/all-8/3/94)