racon vs electronic signal

racon and electronic signal both are nouns.

Word	Noun	Adjective	Verb	Adverb
racon	Yes	No	No	No
electronic signal	Yes	No	No	No

As nouns, electronic signal is a hypernym of racon; that is, electronic signal is a word with a broader meaning than racon:

racon: a device that, on receiving radar signals, transmits coded signals in response to help navigators determine their position
electronic signal: a signal generated by electronic means

racon (noun)	electronic signal (noun)
a device that, on receiving radar signals, transmits coded signals in response to help navigators determine their position	a signal generated by electronic means