Initial checkin

logseq/bak/pages/E3B/2025-05-01T20_36_29.887Z.Desktop.md

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+E3B Transequatorial propagation; long-path propagation; ordinary and extraordinary waves; chordal hop; sporadic-E mechanisms; ground-wave propagation
+
+- [[E3B01]] (A)
+Where is transequatorial propagation (TEP) most likely to occur?
+	- [[A.]] Between points separated by 2,000 miles to 3,000 miles over a path perpendicular to the geomagnetic equator
+	- [[B.]] Between points located 1,500 miles to 2,000 miles apart on the geomagnetic equator
+	- [[C.]] Between points located at each other’s antipode
+	- [[D.]] Through the region where the terminator crosses the geographic equator
+--
+- [[E3B02]] (C)
+What is the approximate maximum range for signals using transequatorial propagation?
+	- [[A.]] 1,000 miles
+	- [[B.]] 2,500 miles
+	- [[C.]] 5,000 miles
+	- [[D.]] 7,500 miles
+--
+- [[E3B03]] (C)
+At what time of day is transequatorial propagation most likely to occur?
+	- [[A.]] Morning
+	- [[B.]] Noon
+	- [[C.]] Afternoon or early evening
+	- [[D.]] Late at night
+--
+- [[E3B04]] (B)
+What are “extraordinary” and “ordinary” waves?
+	- [[A.]] Extraordinary waves exhibit rare long-skip propagation, compared to ordinary waves, which travel shorter distances
+	- [[B.]] Independently propagating, elliptically polarized waves created in the ionosphere
+	- [[C.]] Long-path and short-path waves
+	- [[D.]] Refracted rays and reflected waves
+--
+- [[E3B05]] (D)
+Which of the following paths is most likely to support long-distance propagation on 160 meters?
+	- [[A.]] A path entirely in sunlight
+	- [[B.]] Paths at high latitudes
+	- [[C.]] A direct north-south path
+	- [[D.]] A path entirely in darkness
+--
+- [[E3B06]] (B)
+On which of the following amateur bands is long-path propagation most frequent?
+	- [[A.]] 160 meters and 80 meters
+	- [[B.]] 40 meters and 20 meters
+	- [[C.]] 10 meters and 6 meters
+	- [[D.]] 6 meters and 2 meters
+--
+- [[E3B07]] (C)
+What effect does lowering a signal’s transmitted elevation angle have on ionospheric HF skip propagation?
+	- [[A.]] Faraday rotation becomes stronger
+	- [[B.]] The MUF decreases
+	- [[C.]] The distance covered by each hop increases
+	- [[D.]] The critical frequency increases
+--
+- [[E3B08]] (C)
+How does the maximum range of ground-wave propagation change when the signal frequency is increased?
+	- [[A.]] It stays the same
+	- [[B.]] It increases
+	- [[C.]] It decreases
+	- [[D.]] It peaks at roughly 8 MHz
+--
+- [[E3B09]] (A)
+At what time of year is sporadic-E propagation most likely to occur?
+	- [[A.]] Around the solstices, especially the summer solstice
+	- [[B.]] Around the solstices, especially the winter solstice
+	- [[C.]] Around the equinoxes, especially the spring equinox
+	- [[D.]] Around the equinoxes, especially the fall equinox
+--
+- [[E3B10]] (A)
+What is the effect of chordal-hop propagation?
+	- [[A.]] The signal experiences less loss compared to multi-hop propagation, which uses Earth as a reflector
+	- [[B.]] The MUF for chordal-hop propagation is much lower than for normal skip propagation
+	- [[C.]] Atmospheric noise is reduced in the direction of chordal-hop propagation
+	- [[D.]] Signals travel faster along ionospheric chords
+--
+- [[E3B11]] (D)
+At what time of day is sporadic-E propagation most likely to occur?
+	- [[A.]] Between midnight and sunrise
+	- [[B.]] Between sunset and midnight
+	- [[C.]] Between sunset and sunrise
+	- [[D.]] Between sunrise and sunset
+--
+- [[E3B12]] (B)
+What is chordal-hop propagation?
+	- [[A.]] Propagation away from the great circle bearing between stations
+	- [[B.]] Successive ionospheric refractions without an intermediate reflection from the ground
+	- [[C.]] Propagation across the geomagnetic equator
+	- [[D.]] Signals reflected back toward the transmitting station
+--
+- [[E3B13]] (A)
+What type of polarization is supported by ground-wave propagation?
+	- [[A.]] Vertical
+	- [[B.]] Horizontal
+	- [[C.]] Circular
+	- [[D.]] Elliptical

logseq/bak/pages/E3B/2025-05-01T20_36_51.619Z.Desktop.md

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+E3B Transequatorial propagation; long-path propagation; ordinary and extraordinary waves; chordal hop; sporadic-E mechanisms; ground-wave propagation
+
+- [[E3B01]] (A)
+Where is transequatorial propagation (TEP) most likely to occur? #card
+	- [[A.]] Between points separated by 2,000 miles to 3,000 miles over a path perpendicular to the geomagnetic equator
+	- [[B.]] Between points located 1,500 miles to 2,000 miles apart on the geomagnetic equator
+	- [[C.]] Between points located at each other’s antipode
+	- [[D.]] Through the region where the terminator crosses the geographic equator
+--
+- [[E3B02]] (C)
+What is the approximate maximum range for signals using transequatorial propagation? #card
+	- [[A.]] 1,000 miles
+	- [[B.]] 2,500 miles
+	- [[C.]] 5,000 miles
+	- [[D.]] 7,500 miles
+--
+- [[E3B03]] (C)
+At what time of day is transequatorial propagation most likely to occur? #card
+	- [[A.]] Morning
+	- [[B.]] Noon
+	- [[C.]] Afternoon or early evening
+	- [[D.]] Late at night
+--
+- [[E3B04]] (B)
+What are “extraordinary” and “ordinary” waves? #card
+	- [[A.]] Extraordinary waves exhibit rare long-skip propagation, compared to ordinary waves, which travel shorter distances
+	- [[B.]] Independently propagating, elliptically polarized waves created in the ionosphere
+	- [[C.]] Long-path and short-path waves
+	- [[D.]] Refracted rays and reflected waves
+--
+- [[E3B05]] (D)
+Which of the following paths is most likely to support long-distance propagation on 160 meters? #card
+	- [[A.]] A path entirely in sunlight
+	- [[B.]] Paths at high latitudes
+	- [[C.]] A direct north-south path
+	- [[D.]] A path entirely in darkness
+--
+- [[E3B06]] (B)
+On which of the following amateur bands is long-path propagation most frequent? #card
+	- [[A.]] 160 meters and 80 meters
+	- [[B.]] 40 meters and 20 meters
+	- [[C.]] 10 meters and 6 meters
+	- [[D.]] 6 meters and 2 meters
+--
+- [[E3B07]] (C)
+What effect does lowering a signal’s transmitted elevation angle have on ionospheric HF skip propagation? #card
+	- [[A.]] Faraday rotation becomes stronger
+	- [[B.]] The MUF decreases
+	- [[C.]] The distance covered by each hop increases
+	- [[D.]] The critical frequency increases
+--
+- [[E3B08]] (C)
+How does the maximum range of ground-wave propagation change when the signal frequency is increased? #card
+	- [[A.]] It stays the same
+	- [[B.]] It increases
+	- [[C.]] It decreases
+	- [[D.]] It peaks at roughly 8 MHz
+--
+- [[E3B09]] (A)
+At what time of year is sporadic-E propagation most likely to occur? #card
+	- [[A.]] Around the solstices, especially the summer solstice
+	- [[B.]] Around the solstices, especially the winter solstice
+	- [[C.]] Around the equinoxes, especially the spring equinox
+	- [[D.]] Around the equinoxes, especially the fall equinox
+--
+- [[E3B10]] (A)
+What is the effect of chordal-hop propagation? #card
+	- [[A.]] The signal experiences less loss compared to multi-hop propagation, which uses Earth as a reflector
+	- [[B.]] The MUF for chordal-hop propagation is much lower than for normal skip propagation
+	- [[C.]] Atmospheric noise is reduced in the direction of chordal-hop propagation
+	- [[D.]] Signals travel faster along ionospheric chords
+--
+- [[E3B11]] (D)
+At what time of day is sporadic-E propagation most likely to occur? #card
+	- [[A.]] Between midnight and sunrise
+	- [[B.]] Between sunset and midnight
+	- [[C.]] Between sunset and sunrise
+	- [[D.]] Between sunrise and sunset
+--
+- [[E3B12]] (B)
+What is chordal-hop propagation? #card
+	- [[A.]] Propagation away from the great circle bearing between stations
+	- [[B.]] Successive ionospheric refractions without an intermediate reflection from the ground
+	- [[C.]] Propagation across the geomagnetic equator
+	- [[D.]] Signals reflected back toward the transmitting station
+--
+- [[E3B13]] (A)
+What type of polarization is supported by ground-wave propagation? #card
+	- [[A.]] Vertical
+	- [[B.]] Horizontal
+	- [[C.]] Circular
+	- [[D.]] Elliptical