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Radio Spectrum Allocation
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ISM Band
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.
Maritime Communication
Allocation: VHF and MF bands, specific allocations vary based on service. Main Users: Ships, maritime navigation systems, coast guards.
Citizens Band (CB) Radio
Allocation: 26.965 MHz to 27.405 MHz. Main Users: General public for personal communication, business communication, emergency communication.
Digital Terrestrial Television (DTTV or DTT)
Allocation: Varies by country, typically within the UHF band of 470–862 MHz. Main Users: Television broadcasters for digital TV transmission.
Microwave Communication
Allocation: Various bands in the GHz range, such as 2.4 GHz, 5 GHz, and above. Main Users: Long-distance telecommunication networks, broadcast networks.
AM Radio
Allocation: 525 kHz to 1705 kHz. Main Users: Commercial broadcasting, emergency services.
Wi-Fi
Allocation: 2.4 GHz and 5 GHz bands. Main Users: Home users, businesses, public hotspots for wireless Internet access.
Aviation Band
Allocation: 108 MHz to 137 MHz. Main Users: Air traffic control, aircraft pilots.
LTE Band
Allocation: Various bands from 450 MHz to 5.925 GHz. Main Users: Mobile network operators for 4G services.
Emergency Services
Allocation: Specific local allocations around 700 MHz and 800 MHz. Main Users: Fire departments, police, ambulance services.
Global Positioning System (GPS)
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.
Amateur Radio
Allocation: Multiple bands across a wide range of frequencies from 135 kHz to 275 GHz. Main Users: Licensed amateur radio operators.
FM Radio
Allocation: 88 MHz to 108 MHz. Main Users: Commercial broadcasting, private broadcasting, community services.
Satellite Communication
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.
Radio Astronomy
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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