‰  NOW 30 WPM  ‰   TEXT IS FROM JULY 2014 QST  PAGE 55‰

SIZE, OR INSULATION IS NOT AS DESIGNED.  THERE HAVE BEEN A FEW RECENT QST
ARTICLES DESCRIBING THE DESIGN OF SUCH AN ANTENNA.  USING 14 AWG BARE
COPPER WIRE, EZNEC PREDICTS THAT THE IMPEDANCE OF 122R6 FEET OF WIRE, 47
FEET HIGH AT 10R125 MHZ WILL BE SOMEWHAT DIFFERENT THAN W5JH PREDICTED IN
REFERENCE 2.  ONE THING TO KEEP IN MIND IS THAT THE WHOLE MATCHING ISSUE
CAN BE SIDESTEPPED IF YOU RUN WINDOW LINE ALL THE WAY BACK TO A WIDE RANGE
TUNER NEAR THE RADIO.  THE ANTENNA WILL RADIATE WITH THE SAME PATTERN AND
GAIN, BUT YOU WONT HAVE TO FUSS WITH THE MATCH AT THE ANTENNA FEED, AND YOU
WILL HAVE THE ADDED BENEFIT THAT THE ANTENNA WILL WORK WELL BUT WITH
DIFFERENT PATTERNS ON ALL BANDS FROM 80 TO 6 METERS.  THE EXACT LENGTH AND
RESONANCE OF THE ANTENNA IS NOT PARTICULARLY CRITICAL.  IN GENERAL, SHORTER
LENGTHS WILL HAVE SOMEWHAT REDUCED GAIN, BUT LOWER LEVEL SIDELOBES, WHILE
SOMEWHAT LONGER ANTENNAS WILL HAVE LARGER SIDELOBES.  AS EXAMPLES, REDUCING
THE LENGTH TO 110 FEET WILL RESULT IN A PEAK GAIN OF 10 DBI DOWN FROM 10R37
WITH SIDELOBES AT 21 DB, WHILE A 130 FOOT LENGTH WILL PROVIDE 9R7 DBI GAIN,
WITH THE SIDELOBES DOWN ONLY 7 DB.  DIFFERENT LENGTHS WILL REQUIRE
‰  END OF 30 WPM TEXT  ‰  QST DE W1AW  ƒ