AMTOR

[2] AMTOR was developed in 1978 by Peter Martinez, G3PLX, with the first contact taking place in September 1978 with G3YYD on the 2m Amateur band.

It was used extensively by amateur radio operators in the 1980s and 1990s but has now fallen out of use as improved PC-based data modes are now used and teleprinters became out of fashion.

[3] The protocol remains relatively uncomplicated and AMTOR performs well even in poor and noisy HF conditions.

AMTOR is rarely used today, as other protocols such as PSK31 are becoming favoured by amateur operators for real-time text communications.

The ARRL has announced that as of August 17, 2009, it will be dropping AMTOR bulletin service in favor of the more popular MFSK16 and PSK31 modes.