‰  NOW 20 WPM  ‰ TEXT IS FROM MARCH 2009 QST  PAGES 35 AND 81  ‰

THE ESTIMATE OF A 150 CHARACTERISTIC IMPEDANCE IS CORRECT, THEN THE SWR ON
THE LINE WILL BE ABOUT 3 1, WHICH INTRODUCES AT MOST AN ADDITIONAL 0R7 DB
OF LOSS AS READ FROM THE GRAPH OF MISMATCHED LINE LOSS IN THE ARRL ANTENNA
BOOK.  TOTAL FEED LINE LOSS WOULD THEN BE ABOUT 1R5 DB, AND CERTAINLY LESS
THAN 2 DB.  AS YOU CAN SEE FROM THE TABLE, THE LINE IS SLIGHTLY MORE LOSSY
THAN RG 58.  IT IS CLOSER IN SIZE AND FLEXIBILITY TO RG 174 AND IS MUCH
LESS SUSCEPTIBLE TO DAMAGE FROM BENDING AND ROUGH HANDLING THAN IS COAXIAL
CABLE, AN IMPORTANT CONSIDERATION GIVEN THE INTENDED USE.  IT MIGHT BE
REASONABLE TO MAKE THE FEED LINE A FULL WAVELENGTH LONG ON THE HIGHER BANDS
IN ORDER TO INCREASE THE ANTENNA HEIGHT.  WHETHER THE INCREASE IN HEIGHT
‰  FROM PAGE 81  ‰
172,874 A C N3BB 1,135,620 A C K3ZO 1,193,331 A C W4PA 931,315 A C W0EWD
‰  END OF 20 WPM TEXT  ‰  QST DE W1AW  ƒ