المؤلفون: Wiesner, Jerome B.

المصدر: Scientific American; Jan1957, Vol. 196 Issue 1, p46-51, 6p, 4 Black and White Photographs, 1 Graph

مصطلحات موضوعية: RADIO transmitters & transmission, RADIO wave propagation, TROPOSPHERIC radio wave propagation, IONOSPHERIC radio wave propagation, RADIO waves, TROPOSPHERIC ozone

المؤلفون: Jones, Jon

المصدر: QST; Aug2017, Vol. 101 Issue 8, p99-101, 3p

مصطلحات موضوعية: VHF radio propagation, AURORAS, TROPOSPHERIC radio wave propagation

المؤلفون: Jones, Jon

المصدر: QST; Nov2015, Vol. 99 Issue 11, p96-98, 3p

مصطلحات موضوعية: TROPOSPHERIC radio wave propagation, ELECTROMAGNETIC wave propagation, AMATEUR radio stations, MICROWAVES, APRS (Telecommunication)

مصطلحات جغرافية: UNITED States

People: FULLER, Brad

المؤلفون: Jones, Jon

المصدر: QST; May2017, Vol. 101 Issue 5, p97-99, 3p, 2 Color Photographs, 1 Map

مصطلحات موضوعية: TROPOSPHERIC radio wave propagation, AMATEUR radio stations, TROPOSPHERE, RADIO transmitters & transmission, AMATEUR radio operators, EQUIPMENT & supplies, RADIO station design & construction

المؤلفون: Jones, Jon

المصدر: QST; Aug2014, Vol. 98 Issue 8, p92-94, 3p

مصطلحات موضوعية: AMATEUR radio operators, AMATEUR radio stations, RADIO wave propagation, TROPOSPHERIC radio wave propagation

مصطلحات جغرافية: TEXAS, OHIO

المؤلفون: Jones, Jon

المصدر: QST; Jun2016, Vol. 100 Issue 6, p96-98, 3p

مصطلحات موضوعية: TROPOSPHERIC radio wave propagation, APRS (Telecommunication), SOLAR wind, MAGNETIC storms, TROPOSPHERE

المؤلفون: Jones, Jon

المصدر: QST; Oct2015, Vol. 99 Issue 10, p92-94, 3p

مصطلحات موضوعية: TROPOSPHERIC radio wave propagation, VHF radio propagation, PACKET radio transmission, WEATHER forecasting, APRS (Telecommunication)

المؤلفون: Jones, Jon

المصدر: QST; Jul2014, Vol. 98 Issue 7, p92-94, 3p

مصطلحات موضوعية: AMATEUR radio operators, TROPOSPHERIC radio wave propagation, HUMIDITY, TROPOSPHERE, SHORTWAVE radio

مصطلحات جغرافية: NEW Caledonia

المؤلفون: Jones, Jon

المصدر: QST; Dec2018, Vol. 102 Issue 12, p94-95, 2p

مصطلحات موضوعية: TROPOSPHERIC radio wave propagation, HURRICANE Florence, 2018, VERY high frequencies, RADIO technology, VHF radio propagation

المؤلفون: Zimmerman, Gene

المصدر: QST; Dec2008, Vol. 92 Issue 12, p90-92, 3p, 1 Color Photograph, 2 Charts, 2 Graphs

مصطلحات موضوعية: SHORTWAVE radio, SOLAR cycle, MAXIMA & minima, MAGNETIC flux, TROPOSPHERIC radio wave propagation, METEORS