Noun
English Wikipedia has an article on:radioteletypeWikipedia
radioteletype (plural radioteletypes) (abbreviated as: RTTY)
A communication system consisting of teletypewriters linked by radio.
"The Amateur Radioteletype and VHF Society" was founded in 1946 in Woodside, NY. Source: Internet
The first two-way amateur radioteletype QSO of record took place in May 1946 between Dave Winters, W2AUF, Brooklyn,NY and W2BFD, John Evans Williams, Woodside Long Island, NY. Source: Internet
This tuning sequence is only useful when ITA2 is used with two-tone FSK modulation, such as is commonly seen in Radioteletype (RTTY) usage. Source: Internet
Radioteletype tuning indicator Tuning indicator on cathode ray tube Radioteletype (RTTY) is a telecommunications system consisting originally of two or more electromechanical teleprinters in different locations connected by radio rather than a wired link. Source: Internet
Pronunciation RTTY (in English) may be spoken as "radioteletype", by its letters: R-T-T-Y, or simply as "ritty". Source: Internet