‰  NOW 30 WPM  ‰   TEXT IS FROM MARCH 2014 QST  PAGE 31‰

PAST, BUT THEY MUST BE PARTIALLY STRETCHED TO HOLD THE ANTENNA REASONABLY
FLAT AND WITH THE FIRST GOOD STORM, THEY OFTEN END UP SPRUNG AND HOLDING UP
A DROOPY ANTENNA.  I FINALLY CAME UP WITH THE SCHEME SHOWN IN FIGURE 6,
WHICH ADDS A WEAK LINK THAT WILL BREAK BEFORE THE ANTENNA STRETCHES.  THE
EXTRA LOOP KEEPS THE ANTENNA FROM FALLING TO THE GROUND.  TRAP THE TRAP
COIL IS MADE FROM 39 TURNS ON A 1R66 INCH DIAMETER FORM OF 13 AWG INSULATED
COPPER WIRE USED FOR ELECTRICAL APPLIANCE POWER CORDS SEE FIGURES 7 AND 8.
THE CAPACITOR IS MADE FROM RG 58C/U COAX CABLE, WHICH HAS A CAPACITANCE OF
28R5 TO 30 PF/FOOT.  ABOUT 4 FEET OF THE RG 58 FORMS A 113 PF CAPACITOR
THAT IS RELIABLE TO 5 KV, SO USING UP TO 500 W OF RF SHOULD NOT BE A
PROBLEM, OTHERWISE, IF YOU PLAN TO TRANSMIT WITH MORE POWER, YOU SHOULD USE
A DOORKNOB CAPACITOR.  TUNING THE TRAP TO 3R600 MHZ IN THE SHACK WILL YIELD
A 3R650 MHZ RESONANT POINT IN THE AIR.  IF YOU USE A GRID DIP METER YOU CAN
TUNE THE TRAP BY CUTTING THE COAX TO THE RIGHT LENGTH.  TAKE CARE TO KEEP
THE COAX SHIELD SAFELY APART FROM THE INNER LEAD TO AVOID ARCING.  SECURE
THE 4 FOOT COAX CAPACITOR TO THE SIDE OF THE ANTENNA WHERE THE SHIELD OF
‰  END OF 30 WPM TEXT  ‰  QST DE W1AW  ƒ