You're wrong.
Ortovox gear has been in use for dog location for 20 years, just because you didn't know that doesn't make it not true.
The electronics in a B+F collar isn't made by them, it was designed by Barryvox and adapted for dog use, Ortovox were already selling kits.
So there you go.
i know 4 or 5 men that has had the ortovox d3 and all have failed them just stoped working
and i have the b&f and havent hag a problem or complaint about it yet