MIL-STD-110-342 was a US Dept. of Defense standard for a 16 channel VFTVoice Frequency Telegraphy teletype transmission, published on February 29th, 1972. This mode was officially cancelled as of December 5th, 1995.
This VFTVoice Frequency Telegraphy was officially designated as "Standards for Long Haul Communications Equipment Technical Design Standards for Voice Frequency Carrier Telegraph (FSKFrequency-Shift Keying)".The VFTVoice Frequency Telegraphy consisted of 16 CRATT subchannels (Covered RAdio TeleType, 'Covered' meaning encrypted). These CRATT subchannels used the NATONorth Atlantic Treaty Organization KG-84c encryption protocol and transmitted at 75 baudBaud (unit symbol Bd) is the unit for symbol rate or modulation rate in symbols per second. each.
- HF Asia MIL-STD-110-342
- MIL-STD-110-342 Official Notice of Cancellation
- Official MIL-STD-188-342 Military Standard Technical Publication