The wife almost bagged a deer last night!, Do deer whistles work? Options

[Mark Henry]

Coming home last night after work.
She says she was doing about 85mph and a deer jumped in front of her, she went across 3 lanes sideways, the POS deer even backtracked on her. She missed it by inches, really freaked her out. She didn’t want to take the teen to work this afternoon, but I made her get back in the saddle.

Do the whistles work? Where could I mount and hide them?

P. S. the 914 is OK!

[airsix]

The cheapo ones rely on airflow, so you have to keep them clean and mount them more or less in the airstream and drive fast enough to get them "loud" enough, tho they're ultrasonic and we'll never hear 'em (and never know if they're really "working").

Maybe this isn't characteristic of all of them, but I can hear at least some of them. There was a car in my neighborhood once with a pair on the bumpers. I could hear them a good 10-15 seconds before I could even hear the car coming - as long as I was in front of it (on foot, not in a car). I was really surprised at how far the sound carried. I had always thought they were a cruel trick played on gulible peope, but now I can assure you that they do make quite a bit of noise. I don't know if deer respond or if they just stand there going "I wonder what that noise is?" BAM!!!

-Ben M.