Megasat Professional User Manual download pdf (Page 25)

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System Components

Direct Broadcast Satellite Overview

Gutes Empfangssignal Schlechtes Empfangssignal

Direct Broadcast Service (DBS) satellites broadcast audio, video and data information

from satellites located 22,000 miles in space. A receiving station, such as the antenna,

should include a dish and satellite receiver to receive the signals and process them for

use by the consumer audio and video equipment. The system requires a clear view of

the satellite to maximize the signal reception.

The antenna unit houses the antenna positi-

oning mechanism, LNB (low noise block), and

control elements within a random. Weather

tight connectors join the power, signal, and

control cabling from the below deck units.

The IDU is the system’s user interface, provi-

ding access to the system and its functions

through an LCD and three buttons. The IDU

also serves as the vessel’s junction box, al-

lowing the system to use vessel power, and

supply and receive data to/from the antenna

unit.

Antenna Unit

IDU (In Door Unit)

Figure 1-2 Satellite Blockage Figure 1-3 System Components

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.

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Megasat Professional User Manual Page 25