- 2072 Kartik · 4+2+4 marks
Marconi transmitter, mobile vs nomadic, Telecom Act
Short answer
Marconi's spark-gap transmitter sends Morse code as damped electromagnetic waves using an induction coil and spark gap with aerial and earth. Mobile means communicating while moving with handover; nomadic means moving between places but stationary during communication. Nepal Telecom Act 2053 establishes NTA, licensing, frequency management, tariff/interconnection regulation, rural fund, quality standards, and penalties.
How Marconi's induction coil radio transmitters function as wireless technology? Differentiate between Mobile vs. Nomadic. Highlight the important features of Nepal Telecommunication Act 2053.
Marconi's induction-coil radio transmitter
Marconi's transmitter (1895–1901) was a spark-gap transmitter that sent Morse code as bursts of electromagnetic waves – the first practical wireless telegraphy.
Battery ─ Morse key ─> Induction ─> spark gap ─┬─ Aerial
coil (HV) └─ Earth
- Pressing the Morse key connects the battery to the primary of an induction (Ruhmkorff) coil; an interrupter breaks the current many times a second.
- The secondary produces a very high voltage across a spark gap connected between an elevated aerial and earth.
- Each spark discharges the aerial capacitance, setting up damped high-frequency oscillations that radiate as electromagnetic waves.
- Short and long key presses give dots and dashes. At the receiver a coherer detects the waves and operates a relay/inker.
- The tall grounded aerial gave long range – transatlantic in 1901.
Mobile vs nomadic
| Mobile | Nomadic |
|---|---|
| User communicates while moving (car, walking) | User moves between places but is stationary while communicating |
| Needs handover and location tracking | No handover during a session |
| Example: GSM/LTE phone in a moving bus | Laptop using Wi-Fi in different cafes; nomadic WiMAX |
Important features of Nepal Telecommunication Act 2053 (1997)
- Establishes the Nepal Telecommunications Authority (NTA) as an autonomous regulator to make telecom services reliable, affordable and competitive.
- Licensing: no one may operate telecom service without a licence from NTA; NTA sets licence conditions, fees and renewal.
- Frequency management: radio frequency allocation through the government's Radio Frequency Policy Determination Committee; use of frequencies needs a licence.
- Tariff and interconnection: NTA approves tariffs and interconnection terms and settles disputes between operators.
- Rural Telecommunication Development Fund to extend service to rural and remote areas (universal service).
- Quality and consumer protection: standards for service quality, type approval of equipment.
- Government powers: in emergencies or for national security the government may control or suspend services; provision for lawful interception.
- Offences and penalties: fines/imprisonment for operating without licence, damaging telecom equipment, illegal interception, etc.; appeal against NTA decisions to the Appellate (now High) Court.
- Allows private sector participation and competition, ending the government monopoly.
✓ Answer checked by Claude Opus 5.5 (high effort)
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