:For AMTOR, the amateur radio RTTY protocol , see AMTOR.
As the tactical data processing system, they has the OYQ-5 being capable of receiving data automatically from other ships via Link-14 (STANAG 5514; the data link with the Radioteletype).
Suppressed-carrier ISB was employed in point-to-point (usually overseas) radiotelephony and radioteletype by shortwave (HF).
When used in conjunction with appropriate software, it allows the operator to transmit and receive using many digital modes, including packet, PSK31, and RTTY.
Specialty awards are available for establishing two-way contact with stations in all 50 states using amateur radio satellites, Radioteletype (RTTY), or Slow-scan television (SSTV).
Specialty awards are available for establishing two-way contact with stations in all 40 zones using certain transmission modes including: CW, AM, SSB, amateur radio satellites, Radioteletype (RTTY), a digital mode other than RTTY, or Slow-scan television (SSTV).