INVESTIGATION OF TRANS-POLAR H. F. RADIO PROPAGATION.
A study of polar propagation of HF radio signals from Andoya, Norway, and from Thule, Greenland, to Pullman, Washington, was conducted. The signals were generated by step-frequency sounders operating from 4 MHz to 32 MHz. The study consisted of a study of the regular diurnal and seasonal variations...
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ftdtic:AD0647772 2023-05-15T16:29:05+02:00 INVESTIGATION OF TRANS-POLAR H. F. RADIO PROPAGATION. Schrader,David H. Huang,George WASHINGTON STATE UNIV PULLMAN COLL OF ENGINEERING RESEARCH DIV 1966-10-27 text/html http://www.dtic.mil/docs/citations/AD0647772 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0647772 en eng http://www.dtic.mil/docs/citations/AD0647772 APPROVED FOR PUBLIC RELEASE DTIC AND NTIS Radiofrequency Wave Propagation Radio Communications (*RADIO TRANSMISSION POLAR REGIONS) (*IONOSPHERIC PROPAGATION HIGH FREQUENCY PERIODIC VARIATIONS ATTENUATION SOLAR FLARES AURORAE IONOSPHERIC DISTURBANCES Text 1966 ftdtic 2016-02-18T19:53:29Z A study of polar propagation of HF radio signals from Andoya, Norway, and from Thule, Greenland, to Pullman, Washington, was conducted. The signals were generated by step-frequency sounders operating from 4 MHz to 32 MHz. The study consisted of a study of the regular diurnal and seasonal variations of the MOF and LOF and a study of the effects of solar flares on the reception. During periods when the ionsphere is disturbed by particle flux from solar flares, the MOF decreases initially and the LOF increases some nine hours later on the average. Reception of signal is often lost during periods of either visual or radio aurora. The Andoya-Pullman path was more sensitive to such disturbances than the Thule-Pullman path. The MOF correlates negatively with the daily magnetic K sub p indices of the preceding day. (Author) Text Greenland Thule Defense Technical Information Center: DTIC Technical Reports database Greenland Norway |
institution |
Open Polar |
collection |
Defense Technical Information Center: DTIC Technical Reports database |
op_collection_id |
ftdtic |
language |
English |
topic |
Radiofrequency Wave Propagation Radio Communications (*RADIO TRANSMISSION POLAR REGIONS) (*IONOSPHERIC PROPAGATION HIGH FREQUENCY PERIODIC VARIATIONS ATTENUATION SOLAR FLARES AURORAE IONOSPHERIC DISTURBANCES |
spellingShingle |
Radiofrequency Wave Propagation Radio Communications (*RADIO TRANSMISSION POLAR REGIONS) (*IONOSPHERIC PROPAGATION HIGH FREQUENCY PERIODIC VARIATIONS ATTENUATION SOLAR FLARES AURORAE IONOSPHERIC DISTURBANCES Schrader,David H. Huang,George INVESTIGATION OF TRANS-POLAR H. F. RADIO PROPAGATION. |
topic_facet |
Radiofrequency Wave Propagation Radio Communications (*RADIO TRANSMISSION POLAR REGIONS) (*IONOSPHERIC PROPAGATION HIGH FREQUENCY PERIODIC VARIATIONS ATTENUATION SOLAR FLARES AURORAE IONOSPHERIC DISTURBANCES |
description |
A study of polar propagation of HF radio signals from Andoya, Norway, and from Thule, Greenland, to Pullman, Washington, was conducted. The signals were generated by step-frequency sounders operating from 4 MHz to 32 MHz. The study consisted of a study of the regular diurnal and seasonal variations of the MOF and LOF and a study of the effects of solar flares on the reception. During periods when the ionsphere is disturbed by particle flux from solar flares, the MOF decreases initially and the LOF increases some nine hours later on the average. Reception of signal is often lost during periods of either visual or radio aurora. The Andoya-Pullman path was more sensitive to such disturbances than the Thule-Pullman path. The MOF correlates negatively with the daily magnetic K sub p indices of the preceding day. (Author) |
author2 |
WASHINGTON STATE UNIV PULLMAN COLL OF ENGINEERING RESEARCH DIV |
format |
Text |
author |
Schrader,David H. Huang,George |
author_facet |
Schrader,David H. Huang,George |
author_sort |
Schrader,David H. |
title |
INVESTIGATION OF TRANS-POLAR H. F. RADIO PROPAGATION. |
title_short |
INVESTIGATION OF TRANS-POLAR H. F. RADIO PROPAGATION. |
title_full |
INVESTIGATION OF TRANS-POLAR H. F. RADIO PROPAGATION. |
title_fullStr |
INVESTIGATION OF TRANS-POLAR H. F. RADIO PROPAGATION. |
title_full_unstemmed |
INVESTIGATION OF TRANS-POLAR H. F. RADIO PROPAGATION. |
title_sort |
investigation of trans-polar h. f. radio propagation. |
publishDate |
1966 |
url |
http://www.dtic.mil/docs/citations/AD0647772 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0647772 |
geographic |
Greenland Norway |
geographic_facet |
Greenland Norway |
genre |
Greenland Thule |
genre_facet |
Greenland Thule |
op_source |
DTIC AND NTIS |
op_relation |
http://www.dtic.mil/docs/citations/AD0647772 |
op_rights |
APPROVED FOR PUBLIC RELEASE |
_version_ |
1766018775940857856 |