E2A Amateur radio in space: amateur satellites; orbital mechanics; frequencies and modes; satellite hardware; satellite operations

- [[E2A01]] (C)
What is the direction of an ascending pass for an amateur satellite? #card
	- [[A.]] From west to east
	- [[B.]] From east to west
	- [[C.]] From south to north
	- [[D.]] From north to south
- [[E2A02]] (D)
Which of the following is characteristic of an inverting linear transponder? #card
	- [[A.]] Doppler shift is reduced because the uplink and downlink shifts are in opposite directions
	- [[B.]] Signal position in the band is reversed
	- [[C.]] Upper sideband on the uplink becomes lower sideband on the downlink, and vice versa
	- [[D.]] All these choices are correct
- [[E2A03]] (D)
How is an upload signal processed by an inverting linear transponder? #card
	- [[A.]] The signal is detected and remodulated on the reverse sideband
	- [[B.]] The signal is passed through a nonlinear filter
	- [[C.]] The signal is reduced to I and Q components, and the Q component is filtered out
	- [[D.]] The signal is mixed with a local oscillator signal and the difference product is transmitted
- [[E2A04]] (B)
What is meant by the “mode” of an amateur radio satellite? #card
	- [[A.]] Whether the satellite is in a low earth or geostationary orbit
	- [[B.]] The satellite’s uplink and downlink frequency bands
	- [[C.]] The satellite’s orientation with respect to the Earth
	- [[D.]] Whether the satellite is in a polar or equatorial orbit
- [[E2A05]] (D)
What do the letters in a satellite’s mode designator specify? #card
	- [[A.]] Power limits for uplink and downlink transmissions
	- [[B.]] The location of the ground control station
	- [[C.]] The polarization of uplink and downlink signals
	- [[D.]] The uplink and downlink frequency ranges
- [[E2A06]] (A)
What are Keplerian elements? #card
	- [[A.]] Parameters that define the orbit of a satellite
	- [[B.]] Phase reversing elements in a Yagi antenna
	- [[C.]] High-emission heater filaments used in magnetron tubes
	- [[D.]] Encrypting codes used for spread spectrum modulation
- [[E2A07]] (D)
Which of the following types of signals can be relayed through a linear transponder? #card
	- [[A.]] FM and CW
	- [[B.]] SSB and SSTV
	- [[C.]] PSK and packet
	- [[D.]] All these choices are correct
- [[E2A08]] (B)
Why should effective radiated power (ERP) be limited to a satellite that uses a linear transponder? #card
	- [[A.]] To prevent creating errors in the satellite telemetry
	- [[B.]] To avoid reducing the downlink power to all other users
	- [[C.]] To prevent the satellite from emitting out-of-band signals
	- [[D.]] To avoid interfering with terrestrial QSOs
- [[E2A09]] (A)
What do the terms “L band” and “S band” specify? #card
	- [[A.]] The 23- and 13-centimeter bands
	- [[B.]] The 2-meter and 70-centimeter bands
	- [[C.]] FM and digital store-and-forward systems
	- [[D.]] Which sideband to use
- [[E2A10]] (B)
What type of satellite appears to stay in one position in the sky? #card
	- [[A.]] HEO
	- [[B.]] Geostationary
	- [[C.]] Geomagnetic
	- [[D.]] LEO
- [[E2A11]] (B)
What type of antenna can be used to minimize the effects of spin modulation and Faraday rotation? #card
	- [[A.]] A linearly polarized antenna
	- [[B.]] A circularly polarized antenna
	- [[C.]] An isotropic antenna
	- [[D.]] A log-periodic dipole array
- [[E2A12]] (C)
What is the purpose of digital store-and-forward functions on an amateur radio satellite? #card
	- [[A.]] To upload operational software for the transponder
	- [[B.]] To delay download of telemetry between satellites
	- [[C.]] To hold digital messages in the satellite for later download
	- [[D.]] To relay messages between satellites
- [[E2A13]] Question Deleted (section not renumbered)
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E2B Television practices: fast-scan television standards and techniques; slow scan television standards and techniques