‰ NOW 7 1/2 WPM ‰ TEXT IS FROM MARCH 2014 QST PAGE 31 ‰ IMPEDANCE, SO ANYTHING CONNECTED BEYOND IT WILL, IN EFFECT, DISAPPEAR FROM THE SYSTEM ALMOST LIKE OPENING A SWITCH. AT OTHER FREQUENCIES A TRAP HAS A LOW IMPEDANCE, IN EFFECT ACTING LIKE A CLOSED SWITCH. BY DESIGNING THE TRAPS RESONANT FREQUENCY TO BE 3R650 MHZ, THE NEW EXTENSION HAS LITTLE ‰ END OF 7 1/2 WPM TEXT ‰ QST DE W1AW ƒ