• on Test & Measurement
  • Published in issue 5/2014 on page 80
About the article

Speedy 1200+ Acoustic Modem

Telecom authorities under pressure

Speedy 1200+ Acoustic Modem
Some of you may have heard of modems to enable a PC to “go online” to access BBSs in the dim past, but always with cable connections to the telephone network. Here we reminisce on the precursor of the wired modem: the acoustic coupler. Now a thing of the past, it blew the dust out of some telecom authority offices in the early 1980s.
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