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� Home : ITU-R : Publications : Recommendations : P�Series : P.531 : P.531-4 (05/97)
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P.531�:�Ionospheric propagation data and prediction methods required for the design of satellite services and systems �

Recommendation P.531-4 (05/97)

Approved in 1997-05-28

Status : Superseded

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Format Size Posted Article Number
English

Word Document Word

1425408 bytes 2001-06-01 E�11420�

PDF Document PDF (acrobat)

272202 bytes 2001-06-01 �
Espa�ol

Word Document Word

1433600 bytes 2001-06-01 S�11422�

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275520 bytes 2001-06-01 �
Fran�ais

Word Document Word

1438208 bytes 2001-06-01 F�11421�

PDF Document PDF (acrobat)

276512 bytes 2001-06-01 �

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