Bell 209

Bell 209

An AT&T standard for synchronous 9600 bps full-duplex modems using QAM modulation over four-wire leased lines or half-duplex operation over dial-up lines.
References in periodicals archive ?
This is how the venerable UH-C Huey (Bell 205) workhorse was turned into the AH-1G HueyCobra (Bell 209) gunship.
The following list (in chronological order) gives an idea of how the design has spread over the continents: * Bell 209 HueyCobra series: first delivery in 1967; over 1400 units, including the Sea Cobra series, have been produced.