‰  NOW 13 WPM  ‰  TEXT IS FROM MAY 2015 QST PAGE 65  ‰

LIMITED BY THE NEED TO CLEAR TREES IN MY CASE, SHEDS, AND OTHER OBJECTS.  2
USE A LIGHTER WIRE WITH APPROXIMATELY THE SAME BREAKING STRENGTH.  3 USE A
STRONGER WIRE WITH APPROXIMATELY THE SAME WEIGHT.  SINCE WE CANNOT INCREASE
THE SAG IN OUR EXAMPLE, TWO SOLUTIONS PRESENT SOME POSSIBILITIES.  IN CASE
OF THE LIGHTER WIRE, THE SWITCH TO ALUMINUM OFFERS SOME IMPROVEMENT.  THIS
IS SHOWN IN TABLE 2 IN THE ALUMINUM ROWS.  THE RATIO OF BREAKING LOAD TO
WIRE TENSION IS NOW APPROXIMATELY 1R4 1.  THIS IS SOMEWHAT BETTER, BUT
ƒ  QST DE W1AW  ‰
STILL NOT A COMFORTABLE SITUATION.  THE LAST SOLUTION INVOLVES THE USE OF
COPPER CLAD STEEL WIRE.  THIS IS A CONSIDERABLE IMPROVEMENT, AS SHOWN IN
THE CU/STEEL ROWS.  THE BREAKING LOAD IS NOW ABOUT TWICE THAT OF COPPER AND
THE WIRE WEIGHT ACTUALLY DECREASED.  THE RATIO NOW IS MORE THAN 2 1.  THIS
IS MUCH BETTER.  THIS DISCUSSION DOES NOT INCLUDE THE EFFECTS OF
INSULATION, ICE, SNOW, AND WIND ON THE STRENGTH OF THE ANTENNA.  THE ABOVE
‰  END OF 13 WPM TEXT  ‰  QST DE W1AW  ƒ