‰  NOW 20 WPM  ‰  TEXT IS FROM JANUARY 2016 QST  PAGE 45‰

THIS AREA CAN BE CONVENIENTLY CONSIDERED TO BE APPROXIMATELY THAT OF A
RECTANGLE THAT IS 1/2 WAVE LONG BY 1/4 WAVE WIDE, AS SHOWN IN FIGURE 4.
WHILE A USEFUL RELATIONSHIP, AND ONE THAT EVEN MAKES SOME SENSE, WE DONT
SUGGEST THAT ANYTHING DRAMATIC ACTUALLY HAPPENS AT THE EXACT BOUNDARIES OF
THE RECTANGLE.  A FEW SIMPLE EXAMPLES LETS SAY WE HAVE A TRANSMITTER WITH
300 W OF POWER GOING TO OUR ISOTROPICALLY RADIATING TRANSMIT ANTENNA AND WE
HAVE A RECEIVER ANTENNA WITH AN APERTURE OF 0R5 M2 LOCATED 5 KM AWAY.  THE
MAXIMUM POWER AVAILABLE TO OUR RECEIVER WOULD BE, USING EQUATION 2.  NOTE
THAT NOWHERE DID WE SPECIFY WHAT FREQUENCY WE WERE USING, SINCE AT THIS
POINT ITS JUST A MATTER OF RELATIVE AREAS.  SUPPOSE WE HAD A CASE IN WHICH
WE WANTED TO RECEIVE A 10 METER SIGNAL USING A 1/2 WAVE DIPOLE AS THE
‰  END OF 20 WPM TEXT  ‰  QST DE W1AW  ƒ