‰  NOW 15 WPM  ‰  TEXT IS FROM FEBRUARY 2017 QST  PAGE 76  ‰

CALCULATED FROM THE GPS REPORTED POSITION OF THE PROBE.  THEN, A SIMPLE
FEEDBACK LOOP IS USED TO CONTROL THE STEPPER MOTORS ON THE ANTENNA TO MAKE
SURE THE ANTENNA PRECISELY POINTS AT THE PROBE.  THE ANTENNA IS ABLE TO
TRACK THE PROBE UNTIL IT IS BELOW THE RADIO HORIZON.  BEFORE THE SPACE
COWBOYS THINK ABOUT LAUNCHING THE HIGH ALTITUDE BALLOON AND SPACE PROBE,
THEY MUST FILE A NOTAM NOTICE TO AIRMAN TO TELL PILOTS IN THE AREA THEY
NEED TO BE ON THE LOOKOUT FOR THE SPACE PROBE.  THE TEAM HAS TO RELAY
‰  END OF 15 WPM TEXT  ‚