Dog whistles are often used for training dogs. Dogs do not respond to the same sound pitches in the same manner and as a result, you may need to adjust the pitch levels on your dog whistle. Most all whistles come equipped with a screw or knob that will allow you to make adjustments. With a few quick turns, you can find out which setting your dog is most responsive to.
Locate the screw or knob that adjusts the whistle's frequency. The screw is usually located on the top or side of the dog whistle.
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Turn the screw slightly and blow through the whistle. You want to perform the adjustment with your dog present as dogs react differently to different pitches.
Stop turning the adjustment screw when your dog exhibits the strongest reaction to the sound coming from the whistle. This will be the optimum setting for training your pet.