RES76 – 220 – TABLE 1C1, 2, 3 Limits on aggregate epfd radiated by non-GSO FSS systems in certain frequency bands Frequency band (GHz) epfd (dB(W/m2)) Percentage of time during which epfd may not be exceeded Reference bandwidth (kHz) Reference antenna diameter, and reference radiation pattern4 19.7-20.2 −182 −172 −154 −154 0 90 99.94 100 40 70 cm Recommendation ITU-R S.1428 −168 −158 −140 −140 0 90 99.94 100 1 000 −185 −176 −165 −160 −154 −154 0 91 99.8 99.8 99.99 100 40 90 cm Recommendation ITU-R S.1428 −171 −162 −151 −146 −140 −140 0 91 99.8 99.8 99.99 100 1 000 −191 −162 −154 −154 0 99.933 99.998 100 40 2.5 m Recommendation ITU-R S.1428 −177 −148 −140 −140 0 99.933 99.998 100 1 000 −195 −184 −175 −161 −154 −154 0 90 99.6 99.984 99.9992 100 40 5 m Recommendation ITU-R S.1428 −181 −170 −161 −147 −140 −140 0 90 99.6 99.984 99.9992 100 1 000 1 For certain GSO FSS receive earth stations, see also Nos. 9.7A and 9.7B. 2 For each reference antenna diameter, the limit consists of the complete curve on a plot which is linear in decibels for the epfd levels and logarithmic for the time percentages, with straight lines joining the data points. 3 A non-GSO system shall meet the limits of this Table in both the 40 kHz and the 1 MHz reference bandwidths. 4 For this Table, reference patterns in Recommendation ITU-R S.1428 shall be used only for the calculation of interference from non-GSO FSS systems into GSO FSS systems.