Objects such as tall lighthouse, bridges and big ship that block this view will cause a loss of
signal. The signal will be quickly restored once the antenna has a clear line of sight again.
Heavy rain, cloud, snow or ice may also interfere with the signal reception quality. If the
satellite signal is lost due to blockage or severe weather condition, services from the receiver
will be lost (picture will freeze frame and may disappear). When the satellite signal strength
is again high enough, then the receiver will resume providing desired programming services.
System Components
System Components
System Components
System Components
Antenna Unit
The antenna unit houses the antenna positioning
mechanism, LNB (low noise block), and control
elements within a radome. Weather tight
connectors join the power, signal, and control
cabling from the below deck units.
IDU(InDoor Unit)
The IDU is the system’s user interface, providing
access to the system and its functions through an
LCD and three buttons. The IDU also serves as
the vessel’s junction box, allowing the system to
use vessel power, and supply and receive data
to/from the antenna unit.
Figure 1-3 System
Components
