Radio beacon - Dual carrier

From International Dictionary of Marine Aids to Navigation
Revision as of 16:32, 3 February 2024 by Minsuids (talk | contribs)
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to navigation Jump to search

4-2-045

Dual carrier radio beacon

A continuous carrier radio beacon in which identification is accomplished by means of a keyed second carrier. The frequency difference between the two carriers is made equal to the desired audio frequency.


Note: The object of the system is to reduce the bandwidth of the transmission.




Please note that this is the term as it stands in the original IALA Dictionary edition (1970-1989)