C C h h a a p p t t e e r r 7 7 W W i i r r i i n n g g D D i i a a g g r r a a m m s s
7 7 . . 1 1 5 5 0 0 0 0 E E F F , , 2 2 0 0 8 8 - - 2 2 4 4 0 0 v v , , 5 5 0 0 / / 6 6 0 0 H H z z , , 1 1 P P ( ( 6 6 3 3 1 1 9 9 2 2 E E ) ) ( ( B B e e f f o o r r e e