Channel 3/4 RF modulator.
An RF Modulator permits viewing DVDs, Video Games, and home videos on a TV that is not equipped with Audio/Video inputs. Simply use the Antenna input on your TV set as the input from the RF Modulator and connect AV equipment, legacy game consoles , DVD Players etc. to the RF Modulator.
Brand name(s) : LKG, Philmore

Features:
Specifications RF Output Level: 69db + 3.5dB uv
RF Output Channels: 3 or 4 RF
Output Impedance: 75 ohms Video
Input Impedance: 75 ohm / 1K ohms Audio
Input Impedance: 13+3K Ohm TV to ANT insertion: -2b
Input A: 3 RCA A/V Input
Input B: 75 ohm Antenna Input
Input S-Video: Mini Din 4 pins
Power Source: AC 120V