نتائج البحث - "wave propagation"

1

دورية

Get On the Air April 8 for the Solar Eclipse QSO Party.

المصدر: QST; Apr2024, Vol. 108 Issue 4, p65-66, 2p

مصطلحات موضوعية: SOLAR eclipses, SCIENTIFIC knowledge, TOTAL solar eclipses, AMATEUR radio operators, RADIO wave propagation

2

دورية

Using an lonosonde to Understand the lonosphere.

المؤلفون: Nichols, Eric

المصدر: QST; Jan2022, Vol. 106 Issue 1, p65-68, 4p

مصطلحات موضوعية: ELECTRON distribution, SOLAR cycle, RADIO wave propagation

3

دورية

Effects of Common Building Materials on Radio Wave Propagation: Various obstructions were placed and tested between elevated Yagi antennas at VHF and UHF.

المؤلفون: Hillier, Meredith W.

المصدر: QST; Jan2022, Vol. 106 Issue 1, p35-38, 4p

مصطلحات موضوعية: RADIO wave propagation, CONSTRUCTION materials, UHF antennas, BUILDING failures, DIRECTIONAL antennas, SUBSTRATE integrated waveguides

4

دورية

Emergency Preparations Begin for the 2024 Total Solar Eclipse.

المؤلفون: Palm, Rick

المصدر: QST; Sep2023, Vol. 107 Issue 9, p68-69, 2p

مصطلحات موضوعية: TOTAL solar eclipses, RADIO wave propagation, SCIENTIFIC communication, SOLAR eclipses, AMATEUR radio operators

5

دورية

Scotland Operations from the Transatlantic Tests Centenary Events: This small radio club recaps the activities of their special event station in Ardrossan, including their participation in the reenactment transmission on December 12, 2021.

المؤلفون: Beggs, Barry J.

المصدر: QST; Apr2022, Vol. 106 Issue 4, p60-62, 3p

مصطلحات موضوعية: SPECIAL events, CENTENNIALS, SHORTWAVE radio, RADIO wave propagation

6

دورية

Participating in Science.

المؤلفون: Minster, David A.

المصدر: QST; Sep2023, Vol. 107 Issue 9, p9-9, 1p

مصطلحات موضوعية: SCIENCE journalism, SPACE environment, RADIO wave propagation, SPACE sciences

7

دورية

2018 ARRL International DX Phone Contest Results.

المصدر: QST; Sep2018, Vol. 102 Issue 9, p87-90, 4p

مصطلحات موضوعية: CONTESTS, AMATEUR radio stations, RADIO wave propagation, SOCIETIES

الشركة/الكيان: AMERICAN Radio Relay League

8

دورية

Five Myths of Propagation Dispelled.

المؤلفون: Luetzelschwab, Carl

المصدر: QST; Oct2015, Vol. 99 Issue 10, p36-39, 4p

مصطلحات موضوعية: RADIO transmitters & transmission, IONIZATION (Atomic physics), PLASMA electromagnetic wave propagation, SHORTWAVE radio propagation, IONOSPHERIC electromagnetic wave propagation, RADIO antenna tuning

9

دورية

ARRL 10 Meter Contest 2016 Results.

المؤلفون: Tuthiil, Scott

المصدر: QST; Jul2017, Vol. 101 Issue 7, p84-87, 4p

مصطلحات موضوعية: AMATEUR radio operator competitions, SOLAR radio emission, RADIO wave propagation

الشركة/الكيان: AMERICAN Radio Relay League, UNITED States. National Oceanic & Atmospheric Administration

10

دورية

Radio Wave Propagation: How Waves Attenuate with Distance.

المؤلفون: Siwiak, Kazimierz "Kai"

المصدر: QST; Feb2016, Vol. 100 Issue 2, p37-40, 4p

مصطلحات موضوعية: RADIO wave propagation, SIGNALS & signaling, ATTENUATION of electromagnetic waves, SOUND-wave attenuation

الشركة/الكيان: INTERNATIONAL Space Station

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