Q.Distinguish between wireline and wireless communication? Specify the range of electromagnetic waves in which it is used.
Step 1. Wireline communication (point-to-point communication) uses mediums like wires, cables, and optical fibres. Because the transmitter and receiver are physically connected, these systems cannot be used for long-distance transmission. Examples are the telephone, the intercom, and cable TV.
Step 2. Wireless communication uses free space itself as the communication medium, with signals transmitted as electromagnetic waves via a transmitting antenna. Because no physical connection is needed, wireless communication is the natural choice for long-distance transmission. Examples are mobile communication, radio or TV broadcasting, and satellite communication.
Step 3. The range of electromagnetic waves used for wireless communication spans roughly 2 kHz to 400 GHz, covering everything from ground-wave and sky-wave frequencies through to the space-wave/microwave frequencies used for satellite links and RADAR.
Wireline communication is point-to-point over a physical medium (wires/cables/optical fibres) and is unsuitable for long distances (e.g. telephone, intercom, cable TV); wireless communication uses free space as the medium via a transmitting antenna and is used for long-distance transmission (e.g. mobile, radio/TV broadcasting, satellite communication), spanning electromagnetic wave frequencies of roughly 2 kHz to 400 GHz.
Unlock everything free for 14 days
- Full step-by-step solutions
- Concept-first explanations
- Methods, shortcuts & mistakes
- PYQ mapping + timed mock tests
Full access for 14 days. No credit card required.