continuous receiver watch vs listening watch

continuous receiver watch and listening watch both are nouns.

Word	Noun	Adjective	Verb	Adverb
continuous receiver watch	Yes	No	No	No
listening watch	Yes	No	No	No

As nouns, continuous receiver watch and listening watch are synonyms defined as:

continuous receiver watch and listening watch: a watch established for the reception of traffic of interest to the unit maintaining the watch

continuous receiver watch (noun)	listening watch (noun)
a watch established for the reception of traffic of interest to the unit maintaining the watch	a watch established for the reception of traffic of interest to the unit maintaining the watch