‰ NOW 13 WPM ‰ TEXT IS FROM OCTOBER 2012 QST PAGE 63 ‰ REFLECTIONS. THE SLANT ANTENNA RANGE ELEVATES THE ONE END OF THE RANGE HIGH ENOUGH SO THAT THE GROUND REFLECTION ANGLE IS WELL AWAY FROM THE MAIN BEAM OF A HIGH GAIN ANTENNA, AS SHOWN IN FIGURE 2. TYPICALLY, THE RANGE IS AT AN ANGLE OF 45 DEGREES, SO THAT THE REQUIRED HEIGHT EQUALS THE HORIZONTAL DISTANCE AT THE RAYLEIGH DISTANCE DIVIDED BY THE SQUARE ROOT OF THIS CAN BE FAIRLY HIGH, BUT IS SOMETIMES PRACTICAL AT MICROWAVE UPDATE 2010, THE SIGNAL SOURCE WAS LOCATED ON TOP OF THE CONFERENCE HOTEL. IN ƒ QST DE W1AW ‰ MOST LOCATIONS, ONLY A GROUND REFLECTION RANGE IS POSSIBLE. IN THIS CASE, INSTEAD OF TRYING TO ELIMINATE THE REFLECTION, WE REALIZE THAT THE GROUND REFLECTION IS PREDICTABLE AND CHOOSE A GEOMETRY THAT CONTROLS THE GROUND REFLECTION. OF COURSE, THE RANGE SHOULD BE CLEAR OF OTHER REFLECTING OBJECTS FOR A GOOD DISTANCE IN ALL DIRECTIONS. THE PATH LENGTH OF THE GROUND REFLECTED SIGNAL TO THE RECEIVING ANTENNA INCREASES WITH ANTENNA ‰ END OF 13 WPM TEXT ‰ QST DE W1AW ƒ