FIRST QSO ON 500KHz USING   ROS  30 April

 

First qso  on 500  KHz using ros , G0NBD and  G4WGT , initially using  500/16 and then eme , reducing tx power , the level  that the  eme mode started to fail was in technical terms ?just silly?  reducing the  tx to  3  watts  carrier  power then  via a 20 dB attenuator  down to  30  mW to  a 35 ft top loaded Ae that  needs round  50/75  watts  to  produce 100 mW  erp , ie approx 500 : 1  reduction  ??.. reception 30  miles away  by a  similar Ae , then  produced 100 % copy  , depending on local noise level ?

 

Later in the  evening , M0BMU called G0NBD  at  500/8  , a range of 200  miles , then follower at  100% qso  over  some  30  mins  ending  round  0010 local  time , one final tx  at 500/16 was also  100% decode , even in deep  QSO , to  the  point of no audio  from the  speaker,  the  mode remained in lock and kept printing , each station  running  100  watts.

 

Outstanding  mode Jose !

 

73 ? G ..