Asus My Cinema Series - Manual (Page 20)

1-12 Chapter 1: Hardware information
USB A
series plug
USB B series plug
Digital TV
box External digital
antenna
Internal digital
antenna
1.5.3 USB TV box
• The ASUS My Cinema U3000 TV Box has an internal antenna. You may
use it, or you may also connect an external antenna/roof antenna to the
U3000 through an MCX-to-IEC adapter.
• You cannot use the internal and external digital antennas at the same
time, so you need to specify which antenna you will use. See page 3-6 for
details.
• The internal antenna provides easy portability and more chances of
digital TV reception when the roof antenna or the external antenna is not
available.