‰ NOW 30 WPM ‰ TEXT IS FROM MARCH 2015 QST PAGE 54 ‰ XR6 INCORPORATES 11 FULL SIZE ELEMENTS ON A 12 FOOT BOOM AND USES A SINGLE FEED LINE. IT OPERATES AS A MONOBAND TWO ELEMENT YAGI ON EACH BAND. THE 20, 17, AND 15 METER YAGIS USE A DRIVEN ELEMENT AND REFLECTOR, WHILE THE 10 AND 6 METER YAGIS USE A DRIVEN ELEMENT AND DIRECTOR. THERE IS A 12 METER DRIVEN ELEMENT, BUT THAT ANTENNA USES THE 15 AND 10 METER ELEMENTS FOR DIRECTIVITY RATHER THAN ITS OWN REFLECTOR OR DIRECTOR. THATS A LOT OF ELEMENTS ON SUCH A SHORT BOOM. TO MAKE THE SPACING WORK OUT, THE 10 METER DRIVEN ELEMENT IS MOUNTED ON STANDOFFS DIRECTLY BELOW THE 20 METER DRIVEN ELEMENT, AND THE 12 METER DRIVEN ELEMENT IS MOUNTED ON STANDOFFS AS WELL. THE DESIGN GOAL WAS TO HOLD PATTERN, SWR, AND GAIN PERFORMANCE OVER A WIDE BANDWIDTH WHILE KEEPING THE OVERALL ANTENNA COMPACT. THE XR6 BOOM IS 2 INCHES OD WITH A 1/8 INCH WALL, AND NO SUPPORT TRUSS IS REQUIRED. ELEMENTS ARE MADE FROM HIGH STRENGTH ALUMINUM TUBING, AND ELEMENT JOINTS ARE SECURED WITH RIVETS. ALL ELEMENTS ARE INSULATED FROM THEIR MOUNTING BRACKETS AND FROM THE BOOM USING RUGGED STAUFF CLAMP INSULATORS. THE FEED SYSTEM CONSISTS OF A PARALLEL CONDUCTOR TRANSMISSION LINE MADE FROM SQUARE ‰ END OF 30 WPM TEXT ‰ QST DE W1AW ƒ