Elevated duct
4-1-1010
A tropospheric radio duct of which the lower boundary is above 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)
4-1-1010
A tropospheric radio duct of which the lower boundary is above 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)
ampere
Contrast
Celsius (previously Centigrade)
Capacitance
charge current
Intensity
Reserve buoyancy
Reflected amplitude
Range (also ρ)
International Association of Marine Aids to Navigation and Lighthouse Authorities - AISM
