DCHP-1 Online
radio blackout Esp. North 
See quotes.
- 1951 "At times we had complete radio black-outs and for two-and-three-day periods Joe would be unable to 'get out' at all."
- 1958 Once when, because of peculiar meteorological conditions a "radio blackout" occurred at Cape Hay, for nearly ten days. . . .
- 1951 "At times we had complete radio black-outs and for two-and-three-day periods Joe would be unable to 'get out' at all."