Uplink and Downlink — Lesson 6

This lesson covers the characteristics of the transmitter and receiver, and the path-related loss. The lesson provides a detailed explanation of the uplink and downlink in satellite communication and how the quality of service is determined by the carrier to noise ratio. It explains the concept of totality in satellite communication. It also includes practical examples of satellite TV broadcast, automatic weather stations, and VSAT ATM networks to illustrate the concepts.

Video Highlights

00:18 - Introduction
03:51 - Expression in dB terms C/N0
08:16 - Uplink and downlink in the satellite
13:59 - What happens in totality
16:28 - How the total C/N0 is calculated
18:32 - Observations made from the calculations
21:25 - Examples to understand the calculations better
27:26 - Practical examples of satellite TV broadcast

Key Takeaways

- The link signal power at the receiver point and the noise generated by the receiver are crucial in determining the quality of service.
- The carrier to noise ratio is derived from the transmit power, received power, transmit antenna gain, and different types of losses.
- The transmitter and receiver have specific characteristics that affect the link budget.
- In satellite communication, the uplink and downlink play a significant role in determining the quality of service.
- Practical examples like satellite TV broadcast, automatic weather stations, and VSAT ATM networks help in understanding the application of these concepts.