‰  NOW 25 WPM  ‰  TEXT IS FROM JULY 2001 QST  PAGES 36, 37 AND 116  ‰
DESCRIBED A FOUR ELEMENT BEAM USING A SPACING OF 0R1235 WAVELENGTH FOR
DRIVEN ELEMENT TO REFLECTOR SPACING AND 0R2005 WAVELENGTH FOR DRIVEN
ELEMENT TO FIRST DIRECTOR SPACING, WITH ELEMENT LENGTHS OF SLIGHTLY LESS
THAN A HALF WAVELENGTH.  THE ANTENNA BOOK ALSO CONTAINS A BASIC PROGRAM
THAT TAKES TAPERING INTO ACCOUNT WHEN CALCULATING ELEMENT LENGTHS.  I TOOK
THAT BASIC DESIGN AND EXTENDED IT SO THE RESULTING ANTENNA CAN BE EASILY
AND QUICKLY CHANGED FROM ONE BAND TO ANOTHER WITHOUT USING TOOLS.  I ALSO
WROTE A VISUAL BASIC PROGRAM THAT AUTOMATICALLY CALCULATES ELEMENT LENGTHS
AND SPACING FOR ANY GIVEN FREQUENCY AND ALSO INCORPORATES THE TAPER
PROGRAM.  DURING THE DESIGN PROCESS I QUICKLY DISCOVERED THAT I HAD TO GIVE
UP ON A FOUR ELEMENT ANTENNA IT WAS JUST TOO LONG AND UNWIELDY.  BUT A
THREE ELEMENT BEAM IS NOTHING TO SNEEZE AT.  MAKING IT WORK ON 10 THROUGH
‰  FROM PAGE 116  ‰
B W4NTI 60,356 382 79 13 A KU4BL 30,150 201 75 22 A AB4MT 18,720 120 78 11
‰  END OF 25 WPM TEXT  ‰  QST DE W1AW  ƒ