crab,
Sorry, I don't understand your reply to my last post.
You said that "If all aircraft had 121.5 monitoring then the laxative bath salts would be much more likely to produce results even in the low level or geographically unsuitable environments."
Does that mean that if all aircraft monitored 121.5 then those in the unsuitable environments would be able to recieve the broadcasts? How does that work?
I wasn't aware of an automatic rebroadcast system in a VHF radios wiggly amp system! I shall have to re-read the operators handbook on that one!
SS