Pulse duration coding
Pulse duration coding (in a transponder)
Alternative terms: Pulse length coding (in a transponder), Width coding (in a transponder)
A method of modifying the duration of the pulses emitted from the transponder in accordance with a pre-arranged code for identification purposes.
Reference: B.S. (modified)
Please note that this is the term as it stands in the original IALA Dictionary edition (1970-1989)
Centre of buoyancy
International Association of Marine Aids to Navigation and Lighthouse Authorities - AISM