1. Applications of Satellite
e. Navigation

2. Applications of Satellite
f. Search and Rescue

3. Applications of Satellite
g. Telecommunications / Telebroadcasting

4. Applications of Satellite
h. Interactive Education

5. Applications of Satellite
i. Sea Research / Scientific Explorations

6. Advantages of Satellite Communications
Wideband Capability / Wide Area of Coverage
Superior Reliability
Direct Services to Subscriber’s Premises
Point to Point and Point to Multipoint

7. Disadvantages of Satellite Communications
High Initial Investment
Short Life Span; 7 – 10 years
Expensive Maintenance
Very Dependent on Reliability of Launch Vehicle
Require High Investments on Earth Stations
Subject to Interception and Jamming by Enemy Forces
Signal Propagation Delay / Delayed Response Time
Risky Launching / Failures in Attaining Proper Orbit

8. Satellite Subsystems
Payload – actual user information conveyed through the system
Bus Transmission – includes control mechanisms that support the payload operation