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Originally Posted by Nevadaref
Thanks for confirming one of the possibilities, but I don't see how removing the whistle from one's mouth would prevent a problem.
If my understanding of the device is correct, the microphone attaches either to the collar of the official's shirt or to the lanyard. So moving the whistle 2-3 inches while talking wouldn't seem to move the microphone very much if at all.
Perhaps you could further help me out here.
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I've never used PTS, but I've been told by those who have (while discussing this very topic) that the microphone specifically picks up the sound of air moving through the Fox 40 whistle - not just any sound. So, if you talk with the whistle in your mouth, while it may not blow out loud, the small amount of air moving through the whistle may be enough at that specific frequency or pitch or whatever it is that is special about the whistle to trigger the microphone. Taking the whistle out of the mouth eliminates this problem. The actual positioning of the microphone is secondary.