‰  NOW 25 WPM  ‰  TEXT IS FROM DECEMBER 2007 QST  PAGES 48, 49 AND 89  ‰
IMPEDANCE, THERE WOULD BE NO CHANGE TO THE WAVES IN THE REMAINING SECTION
OF THE LINE.  THE VOLTAGES AND CURRENTS OF BOTH WAVES ALSO VARY WITH
DISTANCE ALONG THE LINE BECAUSE OF THE AC NATURE OF THE WAVES.  THIS
RESULTS IN DIFFERENT COMBINATIONS OF INCIDENT AND REFLECTED VOLTAGES AND
CURRENTS AND THEIR EQUIVALENT IMPEDANCE.  FOR EXAMPLE, IF THE EQUIVALENT
IMPEDANCE LOOKS LIKE 5 O OF RESISTANCE AND 20 O OF REACTANCE AT ONE POINT,
A BIT FARTHER ALONG THE LINE, THE EQUIVALENT IMPEDANCE MIGHT BE 20 O OF
RESISTANCE AND 5 O OF REACTANCE.  THAT MEANS THE POINT ON THE GRAPH OF
RESISTANCE AND REACTANCE ALSO MOVES AROUND WITH POSITION IN THE LINE,
RETURNING TO ITS ORIGINAL COMBINATION OF VOLTAGE AND CURRENT EVERY HALF
WAVELENGTH  1/2.  SMITH CHART CONSTRUCTION WHAT DOES ALL THIS HAVE TO DO
WITH THE SMITH CHART?  THE FORMULATION DESCRIBING HOW THAT IMPEDANCE POINT
‰  FROM PAGE 89  ‰
CT KB9YGD 275 2 1 676 IN WO2N 154 2 1 666 NLI N1WQ 149 2 1 646 MN K4BK 148
‰  END OF 25 WPM TEXT  ‰  QST DE W1AW  ƒ