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L band: Quiz


Question 1: The ________ System uses the L-band similarly to GPS.
Global Positioning SystemGLONASSGalileo (satellite navigation)Global navigation satellite system

Question 2: In infrared astronomy, the L band refers to an atmospheric transmission window centred on 3.5 microns (in the ________).
UltravioletElectromagnetic spectrumInfraredX-ray

Question 3: The ________ carriers are in the L band, centered at 1176.45 MHz (L5), 1227.60 MHz (L2), 1381.05 MHz (L3), and 1575.42 MHz (L1) frequencies.
Global Positioning SystemCompassF-15 EagleInertial navigation system

Question 4: Consequently parts of the L-band are protected ________ allocations world-wide.
Radio telescopeAstronomical radio sourceVery Long Baseline InterferometryRadio astronomy

Question 5: The ________ L band (20-cm radar long-band) is a portion of the microwave band of the electromagnetic spectrum ranging roughly from 1 to 2 GHz.
IEEE Computer SocietyIEEE Technical Activities BoardIEEE Microwave Theory and Techniques SocietyInstitute of Electrical and Electronics Engineers

Question 6: In the ________ and overseas territories, the L band is held by the military for telemetry, thereby forcing digital radio to in-band on-channel (IBOC) solutions.
CanadaAlaskaUnited StatesPhilippines

Question 7: [1][2] It is used by some communications satellites, and for some terrestrial ________ digital audio broadcasting (DAB).
Digital Radio MondialeOrthogonal frequency-division multiplexingDigital radioDigital Audio Broadcasting

Question 8: The ________ service also has an allocation between 1240 and 1300 MHz (23-centimeter band).
Amateur radio repeaterCitizens' band radioAmateur radioD-STAR

Question 9: ________ phones use frequencies between 1616 and 1626.5MHz[3] to communicate with the satellites
United StatesGlobalstarBeijingIridium Satellite LLC

Question 10: The ________ uses the L-band similarly to GPS.
Special Member State territories and the European UnionEuropean UnionEuropean integrationGalileo (satellite navigation)

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