Рет қаралды 3,533
Components:-
Lm386 ic
1n34 Germanium diode
100uf Capacitor
10uf Capacitor
9v Battery
3-18pf variable Capacitor
100uH Inductor (variable,Ferrite Rod)
AM, SW, FM, and MW are different bands used for radio broadcasting:
1. AM (Amplitude Modulation): This is the most traditional form of radio broadcasting. It's known for its long-range transmission capability, but it's susceptible to interference. AM stations are typically found in the frequency range of 540 to 1600 kilohertz (kHz).
2. SW (Shortwave): Shortwave radio operates in the frequency range from about 1.6 to 30 MHz. It allows for long-distance communication due to its ability to bounce off the ionosphere, enabling broadcasts to be received across continents. SW radio is often used for international broadcasting, amateur radio, and emergency communication.
3. FM (Frequency Modulation): FM radio is known for its high-fidelity sound quality and resistance to interference. It operates in the frequency range of 88 to 108 megahertz (MHz). FM is commonly used for commercial radio broadcasting, especially for music stations.
4. MW (Medium Wave): Medium Wave radio operates in the frequency range of 525 to 1705 kHz. It's commonly used for local and regional broadcasting, as well as for AM broadcasting. MW signals travel primarily along the ground and are limited in range compared to shortwave and FM signals.