I work A07 MODE A regularly.I use a he beam to hear it on low pass or at the horizion.When it is above 20-30 degreed the low angle of the beam gives out.Then I switch over to my 43 ft vertical with remote tuner ,because on 10 m it has an extremely HIGH angle of radiation .I hear my downing at S6 or greater regularly !Just as with any downlink antenna,it has to look at the bird !

jeff broughton