Serial number of recommendations

Authorized date

Corresponding Core content in recommendations

P.311-14

2013-09

Acquisition, presentation and analysis of data in studies of tropospheric propagation

P.845-3

1997-08

HF field-strength measurement

P.846-1

1995-10

Measurements of ionospheric and related characteristics

P.1148-1

1997-05

Standardized procedure for comparing predicted and observed HF sky-wave signal intensities and the presentation of such comparisons