The FM antenna is located in the power cord of the clock radio. For optimal reception, fully extend the power cord and set the FM ANTENNA selector to INT.
Your clock radio may have the capability of connecting an external antenna. Set the FM ANTENNA to EXT, when connecting a 75 ohm coaxial cable (not supplied) to the FM ANTENNA (75 Ω) jack.
NOTE: Refer to the product manual for model-specific information on the features and capabilities of your radio.