[1-6/56,3J/37,3M/80,4-9S/100,8A/81,8D/195] Liaison stat. to Chair. of TG 1/6 and draft proposal to WP 3M on rev. of Rec. ITU-R P.620-3 to become entitled: "Propag. data required for the evaluation of coordin. distances in the frequency range 100 MHz-15 GHz