Two choices....

1)Do away with them completely
or
2)Increase the ranges so that there is more of a spread around the oceans.(thus indicating a full coverage campaign of U-Boats and aircraft)

Unfortunatly, you can't tell SH3 - I want contacts reported to me only if they are 5000km away but no further than 15000km away.

Also, you could change the time compression setting of radio contacts received to something that won't interupt your play.

:up:
Think I'll set them to zero.
btw isnt Display Range To Important Radio Contacts=1500 ;[>0] kilometers
The [>0] kilometers, isn't that a minimum range I can play around with?

Not sure
You will have to remove the ; as that comments the text following so its not used by the game

Try it and see - Its the only way to be sure