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Radio Spectrum Allocation

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ISM Band

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Allocation: Typically includes 2.4 GHz, 5.8 GHz, and other frequencies. Main Users: Industrial, scientific, and medical devices; also used by Wi-Fi and Bluetooth technologies.

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Maritime Communication

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Allocation: VHF and MF bands, specific allocations vary based on service. Main Users: Ships, maritime navigation systems, coast guards.

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Citizens Band (CB) Radio

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Allocation: 26.965 MHz to 27.405 MHz. Main Users: General public for personal communication, business communication, emergency communication.

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Digital Terrestrial Television (DTTV or DTT)

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Allocation: Varies by country, typically within the UHF band of 470–862 MHz. Main Users: Television broadcasters for digital TV transmission.

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Microwave Communication

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Allocation: Various bands in the GHz range, such as 2.4 GHz, 5 GHz, and above. Main Users: Long-distance telecommunication networks, broadcast networks.

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AM Radio

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Allocation: 525 kHz to 1705 kHz. Main Users: Commercial broadcasting, emergency services.

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Wi-Fi

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Allocation: 2.4 GHz and 5 GHz bands. Main Users: Home users, businesses, public hotspots for wireless Internet access.

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Aviation Band

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Allocation: 108 MHz to 137 MHz. Main Users: Air traffic control, aircraft pilots.

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LTE Band

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Allocation: Various bands from 450 MHz to 5.925 GHz. Main Users: Mobile network operators for 4G services.

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Emergency Services

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Allocation: Specific local allocations around 700 MHz and 800 MHz. Main Users: Fire departments, police, ambulance services.

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Global Positioning System (GPS)

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Allocation: L1 band at 1575.42 MHz, L2 band at 1227.60 MHz, L5 band at 1176.45 MHz. Main Users: Navigation for military, civilian, and commercial users worldwide.

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Amateur Radio

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Allocation: Multiple bands across a wide range of frequencies from 135 kHz to 275 GHz. Main Users: Licensed amateur radio operators.

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FM Radio

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Allocation: 88 MHz to 108 MHz. Main Users: Commercial broadcasting, private broadcasting, community services.

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Satellite Communication

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Allocation: C-band (4–8 GHz), Ku-band (12–18 GHz), Ka-band (26.5–40 GHz). Main Users: Satellite TV, Internet services, military communications.

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Radio Astronomy

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Allocation: Specific bands allocated for passive services, such as 1.4 GHz (21 cm hydrogen line). Main Users: Research institutes, observatories for the study of celestial phenomena.

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