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One of the things in operating RTTY with non-electronic gear has been the nuisance of identifying. here is a lot or repetition such as the other station’s call, my call, my name and QTH. I often envied tnose that had the new fancy “glass TTY” units that had all of that built in. Well that it wasn’t long after I got the Sinclair ZX81 that I realized that here was my answer. Following is an outline of a program that send blocks or buffers of text at 60-wpm Baudot. Additionally I hope this will encourage others dig into to their Sinclair/Timex computers and put them to work on the ham bands.