Freed from the Crank-a-kai:"I read your signal loud and clear!"
In the anime
Signiton appeared in YW007, although instead of increasing reception, he was decreasing Nate's reception. Nate used Robonyan F's Onechanside form, which fused him and Nate together, creating Keita Type-F. This caused Nate's reception to increase greatly.
Denjin: The kanji for this word presumably being '電人', "Denjin" translates as "Electric Person" or maybe "Electroid". It is written in the Japanese 'hiragana' script in it's listed form (でんじん).
"Coberturo" is a corruption of cobertura (coverage)
Signiton is a portmanteau of Signal & Ton.
Signiton's "random" nicknames in Yo-kai Watch 2 are: Fulbar, Nick, Elunch and Hearmes.
Signiton is the first Yo-kai to change their favorite food for every main series installment.
Signiton is also the only member of the Legendary Blasters Yo-Kai circle to not appear before the first mission in Yo-Kai Watch Blasters Red Cat Corps and White Dog Squad.