Noun
RTTY (plural RTTYs)
Initialism of radioteletype.
According to a chapter in the "RTTY Handbook", text images have been sent via teletypewriter as early as 1923. citation However, none of the "old" RTTY art has been discovered yet. Source: Internet
American Radio Relay League, The ARRL Handbook for Radio Communications, 87th ed., 2010, Chapter 16 RTTY has declined in commercial popularity as faster, more reliable alternative data modes have become available, using satellite or other connections. Source: Internet
Amateur Radio operators needed to modify their transmitters to allow for HF RTTY operation. Source: Internet
Commercial RTTY systems were in active service between San Francisco and Honolulu as early as April 1932 and between San Francisco and New York City by 1934. Source: Internet
Amateur Radio operators used various equipment designs to get on the air using RTTY in the 1950s and 1960s. Source: Internet
A few weeks later, G3CQE had the first G/VE RTTY QSO with VE7KX. Source: Internet