Propagation Characteristics of JIY10MHz Waves on the Circuit between Tokyo and Syowa Station
The field strength of the standard frequency waves (JJY) at 10 MHz, measured at Syowa Station in Antarctica, for two years from January 1974 through December 1975 was compared with the value derived from the prediction method which is based on the CCIR Interim Method. According to the diurnal variat...
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National Institute of Polar Research
1979
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fttriple:oai:gotriple.eu:oai:doaj.org/article:c4ace38e0663437ba88faa2eec13c58f 2023-05-15T13:55:13+02:00 Propagation Characteristics of JIY10MHz Waves on the Circuit between Tokyo and Syowa Station Hidetoshi SUGIUCHI Ichiro YAMAZAKI Isao SHIRO Noriaki KOMIYA 1979-03-01 https://doi.org/10.15094/00008063 https://doaj.org/article/c4ace38e0663437ba88faa2eec13c58f en other eng National Institute of Polar Research doi:10.15094/00008063 0085-7289 2432-079X https://doaj.org/article/c4ace38e0663437ba88faa2eec13c58f undefined Antarctic Record, Iss 65, Pp 119-134 (1979) geo Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 1979 fttriple https://doi.org/10.15094/00008063 2023-01-22T19:07:47Z The field strength of the standard frequency waves (JJY) at 10 MHz, measured at Syowa Station in Antarctica, for two years from January 1974 through December 1975 was compared with the value derived from the prediction method which is based on the CCIR Interim Method. According to the diurnal variation obtained, the predicted strength shows a good agreement with the measured values when the MUF of the circuit (Tokyo-Syowa) exceeds sufficiently the operating frequency. On the other hand, the predicted strength shows a large difference from the measured value when the MUF is comparable to or below the operating frequency. This discrepancy is considered to be caused partly by the E_s propaeation mode which is not taken into account in the prediction method. The examination is made in this paper for other anomalous propaeation mode such as the off-great circle path associated with the ground side-scatter, including the deviative absorption loss. The reception rate is also investigated statistically for the purpose of establishing Tokyo-Antarctica communication circuit. Article in Journal/Newspaper Antarc* Antarctica Unknown Syowa Station |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
fttriple |
language |
English |
topic |
geo |
spellingShingle |
geo Hidetoshi SUGIUCHI Ichiro YAMAZAKI Isao SHIRO Noriaki KOMIYA Propagation Characteristics of JIY10MHz Waves on the Circuit between Tokyo and Syowa Station |
topic_facet |
geo |
description |
The field strength of the standard frequency waves (JJY) at 10 MHz, measured at Syowa Station in Antarctica, for two years from January 1974 through December 1975 was compared with the value derived from the prediction method which is based on the CCIR Interim Method. According to the diurnal variation obtained, the predicted strength shows a good agreement with the measured values when the MUF of the circuit (Tokyo-Syowa) exceeds sufficiently the operating frequency. On the other hand, the predicted strength shows a large difference from the measured value when the MUF is comparable to or below the operating frequency. This discrepancy is considered to be caused partly by the E_s propaeation mode which is not taken into account in the prediction method. The examination is made in this paper for other anomalous propaeation mode such as the off-great circle path associated with the ground side-scatter, including the deviative absorption loss. The reception rate is also investigated statistically for the purpose of establishing Tokyo-Antarctica communication circuit. |
format |
Article in Journal/Newspaper |
author |
Hidetoshi SUGIUCHI Ichiro YAMAZAKI Isao SHIRO Noriaki KOMIYA |
author_facet |
Hidetoshi SUGIUCHI Ichiro YAMAZAKI Isao SHIRO Noriaki KOMIYA |
author_sort |
Hidetoshi SUGIUCHI |
title |
Propagation Characteristics of JIY10MHz Waves on the Circuit between Tokyo and Syowa Station |
title_short |
Propagation Characteristics of JIY10MHz Waves on the Circuit between Tokyo and Syowa Station |
title_full |
Propagation Characteristics of JIY10MHz Waves on the Circuit between Tokyo and Syowa Station |
title_fullStr |
Propagation Characteristics of JIY10MHz Waves on the Circuit between Tokyo and Syowa Station |
title_full_unstemmed |
Propagation Characteristics of JIY10MHz Waves on the Circuit between Tokyo and Syowa Station |
title_sort |
propagation characteristics of jiy10mhz waves on the circuit between tokyo and syowa station |
publisher |
National Institute of Polar Research |
publishDate |
1979 |
url |
https://doi.org/10.15094/00008063 https://doaj.org/article/c4ace38e0663437ba88faa2eec13c58f |
geographic |
Syowa Station |
geographic_facet |
Syowa Station |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_source |
Antarctic Record, Iss 65, Pp 119-134 (1979) |
op_relation |
doi:10.15094/00008063 0085-7289 2432-079X https://doaj.org/article/c4ace38e0663437ba88faa2eec13c58f |
op_rights |
undefined |
op_doi |
https://doi.org/10.15094/00008063 |
_version_ |
1766261504705822720 |