Audiovox AM/FM+ User Guide - Page 7

LF-30S 5 Controls and Features The transmitter and receiver units look virtually alike but are labeled accordinly on the front of the units. However, the receiver can also be identified by the threaded RF coax connector labeled "TO TV" on the back panel. A - Directional 2.4GHz antenna (both units) Sends and receives A/V signals. Caution: Do not attempt to rotate the antenna a full 360 degrees, or permanent damage to the antenna and mechanical stopper will occur. B - Channel Selection Switch (both units - underneath unit) Both the transmitter and the receiver must be set to the same channel for proper operation. C - On/Off Switch (both units) Turns the transmitter and receiver on or off. D - 15V DC Power Port (both units) Both adapters are the same and are interchangable. E - Audio/Video Jacks (both units) Right and left stereo audio (red/white) jacks and a composite (yellow) video jack are used for connection to A/V components and/or TV sets. F - RF Connector (receiver only) Used to connect the RF output from the receiver unit to the RF input of a TV set. G - Channel 3/4 Video Selector Switch (receiver only - underneath unit) Set the output of the receiver unit to either channel 3 or 4, to correspond to the TV channel you wish to watch the A/V source video on. H - IR Extender Jack (transmitter only) Allows you to remotely control the A/V source that is connected to the transmitter. I - Antenna (both units) Sends and receives remote control signals.