What is the difference between Baseband and Broadband Transmission
The correct answer and explanation is :
Difference Between Baseband and Broadband Transmission
| Feature | Baseband Transmission | Broadband Transmission |
|---|---|---|
| Definition | Uses a single signal at a time on the entire bandwidth of the channel. | Uses multiple signals or channels on the same medium simultaneously. |
| Frequency Range | Uses low-frequency signals (usually digital). | Uses higher-frequency signals (usually analog). |
| Multiplexing | Does not support multiplexing as only one signal is transmitted at a time. | Uses multiplexing techniques (FDM, WDM) to send multiple signals. |
| Signal Type | Digital signals are used. | Analog signals are used. |
| Transmission Distance | Suitable for short distances (e.g., LANs). | Suitable for long-distance transmission (e.g., cable TV, telephone networks). |
| Medium | Mostly used with coaxial cables, twisted pair cables, and fiber optics in local networks. | Used in coaxial cables, fiber optics, and wireless networks for wide-area communication. |
| Examples | Ethernet networks, Local Area Networks (LANs). | Cable TV, DSL, Satellite communication, and Wi-Fi. |
Explanation
Baseband and broadband transmission are two methods of transmitting data over communication channels.
- Baseband Transmission operates on a single frequency and sends digital signals in a direct manner. It is commonly used in Local Area Networks (LANs) like Ethernet, where the entire bandwidth of the channel is dedicated to a single signal at a time. Since it is digital, baseband transmission does not require modulation and is ideal for short-distance communication. However, it cannot support multiple signals simultaneously, making it unsuitable for long-distance or high-volume communication.
- Broadband Transmission, on the other hand, allows multiple signals to be transmitted over different frequencies simultaneously using multiplexing techniques like Frequency Division Multiplexing (FDM). This enables high-speed, long-distance communication. Broadband is used in television broadcasting, telephone lines, satellite communication, and internet services. It supports higher bandwidth applications, making it suitable for wide-area communication.
In summary, baseband transmission is simpler and used for local networks, while broadband transmission is more complex but enables high-speed, long-distance data communication.