RECOMMENDATION ITU-R BS.561-2 - Definitions of radiation in LF, MF and HF broadcasting bands 1 Cymomotive force (c.m.f.) (in a given direction) 2 Effective monopole-radiated power (e.m.r.p.) (in a given direction) 3 Equivalent isotropically radiated power (e.i.r.p.) 4 Effective radiated power (e.r.p.) (in a given direction) ANNEX 1 - Relationship between radiated powers expressed in different units 1 Relationship between e.m.r.p. and c.m.f. 2 Relationship between e.r.p. and e.i.r.p. ANNEX 2 - Determination of the radiated power 1 Vertical antennas 2 Horizontal antennas 3 Transmitter carrier power as a function of c.m.f. ANNEX 3 - Radiated power standards for propagation curves