‰  NOW 30 WPM  ‰
ITSELF.  THE MARCONI CAN BE DEPLOYED VERTICALLY, AND THEN BECOMES THE
COMMON /4 VERTICAL MONOPOLE, PERHAPS THE MOST POPULAR ANTENNA AMONG
BROADCASTERS IN THE STANDARD AM BROADCAST BAND.  THE GROUND FOR SUCH AN
ANTENNA SHOULD BE BENEATH THE ANTENNA.  IT IS AN INTEGRAL PART OF THE
ANTENNA SYSTEM AND, TO BE EFFECTIVE, NEEDS TO HAVE A LOW IMPEDANCE AT THE
OPERATING FREQUENCY.  IF A TRANSMISSION LINE CONNECTS THE STATION TO THE
ANTENNA, THE GROUND CAN BE AT A SUBSTANTIAL DISTANCE FROM THE STATION.
THERE ARE A NUMBER OF ANTENNA TYPES THAT RELY ON SUCH A GROUND.  MANY
INHERENTLY UNBALANCED ANTENNAS HAVE SOME REQUIREMENT FOR A GROUND SYSTEM.
SOME CLASSICS ARE 5/8 MONOPOLES, BOBTAIL CURTAINS, TRADITIONAL WINDOMS AND
LONG OR RANDOM WIRES.  SAFETY GROUND IT IS CERTAINLY GOOD PRACTICE, AND IN
MOST IF NOT ALL US JURISDICTIONS IT IS A BUILDING CODE REQUIREMENT, THAT
ELECTRICAL AC WIRING BE SET UP WITH THREE LEADS HOT, NEUTRAL AND SAFETY
GROUND.  AT THE SERVICE ENTRANCE, THE NEUTRAL AND GROUND ARE TIED TOGETHER
‰  FROM PAGE 97  ‰
K5MA/351 K5RH/343 K5YY/366 K5ZQ/349 K6AAW/353 K6LD/339 K6LGF/378 K6MD/342
K6SLO/340 K6SMF/352 K6UFO/338 K6XJ/354 K6YK/350 K6YUI/356 K7EG/347
‰  END OF 30 WPM TEXT  ‰  QST DE W1AW  ƒ