ITU-R F 613-1986 Use of Ionospheric Channel Sounding Systems Operating in the Fixed Service at Frequencies Below About 30 MHz - Section 3Ac - Influence of the Ionosphere《低于30MHz频段固.pdf

/- COPYRIGHT International Telecommunications Union/ITU RadiocommunicationsLicensed by Information Handling ServicesCCIR VOLUME*III 90 W 4855232 0509503 b W 3A d: Operational questions There are no Recommendations in this Section. 3A e: Radio system employing meteor-burst propagation There are no Recommendations in this Section. 31 COPYRIGHT International Telecommunications Union/ITU RadiocommunicationsLicensed by Information Handling Services