[Marsh Muppet]

Has anyone used silent whistles in training. I know they work because I can hear them. I just don't know how far away a dog can hear one. I can blow a standard pea whistle and hear the echo come back to me from the treeline a mile across the marsh. Anyone real world experience using a silent whistle at distance?

 

[Knute]

I have trained my dog to recall on a whistle. I use a "Bobby" whistle. I tried a "silent" whistle that wasn't silent. My dog's response to the "silent" whistle was not consistent. I shifted to the Bobby whistle and his response became consistent.

FWIW, a dog is able to hear roughly 2X the frequency range that humans hear. A physical fact is a low frequency tone will carry farther than a high frequency tone.