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  • CQ Amateur Radio

    ANALOG ADVENTURES

    Apr 01, 2022 4 minutes
    BY ERIC P. NICHOLS,* KL7AJ

    Although radioteletype, or RTTY, officially qualifies as a digital mode, in fact the oldest digital mode other than Morse code, it is also very much an analog mode, which makes it fair game for my column. Let me’splain.

    I discovered RTTY not long after obtaining my General Class ticket, back in 1974. One of my many Elmers, WB6QXZ# (what a hideous callsign for CW!), had a couple of Model 28 teleprinters residing on a confetti-covered basement floor. Why the confetti, you ask? Because of the REPERFORATOR, an obnoxious device invented by the Prince of Darkness himself. A reperforator was a primitive system using punched paper tapes for memory, for subsequent transmission by a Model 28

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