hi all!

is there any program (or calculating method) to predict shortwave od midwave
radio contacts...
example: my friend in london (or other location) wana to know when
(day/night) and with what aprox. field strength he will recieve signall
emited form deanovec, croatia with xyz kW (croatian radio)....
there is known: distance, emitted radio power and propagation forecast...

thanx and please excuse me for my bad english