No, it's not.
Check out the manufacturer's page. They call their product a beacon because that's what is. It doesn't receive and transmit back. It just transmits. Until its battery runs out.
It is the brainless drive-by media who have applied the misleading name "pinger" to it.
HMS ECHO
Yes, it is.
I never wrote anything at all about the box signals.
Regardless, without respect to that (my comment...the ship), you’re absolutely right. Hope that helps.
You completely missed the joke apparently. I stopped being serious about this sideshow long ago...