New developments in marine radio direction finders

A review of the past and present state of marine direction finding and a comparison of its merit and fields of application with those of radar and loran. Reasons for lack of progress in measurement technique are considered and factors that seem to limit further progress are reviewed. Suggestions for improvement are: use of other parts of the frequency spectrum, pulse transmissions to reduce night effects, direct reading indication of bearings and combination of distance measurement with bearing measurement to obtain a fix from only one beacon station.