‰  NOW 15 WPM  ‰  TEXT IS FROM DECEMBER 2017 QST  PAGE 34  ‰

COMPLETELY UNDERSTAND THE MECHANISMS BEHIND SPORADIC E.  THE PHENOMENON IS
QUITE VARIABLE WITH A GOOD NUMBER OF EXCEPTIONS TO THE RULE.  FOR EXAMPLE,
WE HAMS MAKE SPORADIC E CONTACTS IN POLAR AND EQUATORIAL REGIONS, EVEN
THOUGH THE LITERATURE TELLS US NOT TO EXPECT ANY SPORADIC E LAYERS THERE
FROM WIND SHEARS.  THIS IS PROBABLY DUE TO THE POLAR REGIONS BEING DIRECTLY
AFFECTED BY SOLAR WIND INPUTS TO THE UPPER ATMOSPHERE.  NEVERTHELESS, WE
CAN CONCLUDE A FEW THINGS FROM MY INITIAL STUDIES.  SPORADIC E OBSERVATIONS
‰  END OF 15 WPM TEXT  ‚