Quote:
Originally Posted by BillyMac
My IAABO signal chart states that, but my IAABO Mechanics Manual states that one should simultaneously sound one's whistle and give a visual signal.
I don't have access to a NFHS Mechanics Manual.
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NFHS Officials Manual
Violations: Give a sharp single blast of the whistle
and fully extend one arm above the head with fingers extended to stop the clock.
Fouls: Sound the whistle with a single sharp blast
while raising one hand, fist clenched, straight and high above the head.