crystals – Neil's Log Book https://nrqm.ca What could possibly go wrong? Sun, 12 Feb 2017 07:32:14 +0000 en-US hourly 1 https://wordpress.org/?v=5.4.1 Acoustic modem circuit diagrams https://nrqm.ca/2011/01/content-is-king-acoustic-modem-circuit-diagrams/ Thu, 13 Jan 2011 23:18:46 +0000 https://nrqm.ca/?p=464 Here are some circuit diagrams (leaving the power source abstract):

Acoustic transmitter circuit

Acoustic transmitter circuit diagram (click for full size).

Acoustic receiver circuit

Acoustic receiver circuit diagram (click for full size).

Acoustic modem microcontroller circuit

Acoustic modem microcontroller circuit diagram (click for full size)

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