"Ari Silversteinn" wrote in message
...
DHS has proposed a change in scenario. They want an on locomotive alerting
system that could be commandeered and driven at, near or about a disaster
site. Everything else stays more or less the same, overbroadcasting on
local AM/FM, power off the locomotive, selective or full frequency
broadcasting, train (s) to be in motion at all times. 20-30 second
messages
that would also combine a message to be aware that a locomotive (at speed)
will be flying by the at grade crossings.

Comments?
--
Impractical, for the same reasons cited earlier. What's wrong with
electronic message boards on trailers fitted with sirens and, if deemed
necessarily, a very large guy with a gun to maintain interest.

You may find that sci.electronic.misc or sci.electronic.design may be more
relevant, since it's commercial/military and not amateur. Mind you, they may
also be less polite.....

Ken