Difference between revisions of "Surface duct"
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Latest revision as of 00:17, 25 February 2009
4-1-1005
Alternative term: Ground-based duct
A tropospheric radio duct in which the lower boundary is the surface of the earth.
Reference: C.C.I.R.
Please note that this is the term as it stands in the original IALA Dictionary edition (1970-1989)