Indeed Scott,
I forgot that effect - a bla bla bla student practice pan call in the UK could cause probelms for the satelite and perhaps affect it's ability to pick up an ELT or SARBE nearby (in satelite terms!)
Can anyone remember how many passes it can take for the satelite to give a decent fix and how much longer it would take if there was another transmission within say 50nm at the same time as the pass was being made?
Of course, the satelite based system is moving away from 121.50 and that will be a partial fix once everyone's SARBE and ELTS are changed.
Perhaps we should simply leave it up to the pilots - if you want to risk causing someone harm by interfering unnecessarily with an emergency transmission then practice on the emergency frequency - if you would prefer not to risk blocking an emergency frequency then don't................does anyone believe that would reduce nuisance calls...........I doubt it!
Regards,
DFC