iz8dwf | Restoring the DCD AC.350.OM acoustic coupler pt. 2: Schematic & TX test @iz8dwf | Uploaded December 2018 | Updated October 2024, 1 hour ago.
Restoring a DCD model AC.350.OM acoustic coupler, S/N 350/381.
Part 1 here:
youtube.com/watch?v=ZAICCy4OC-8
Part 3: here
youtube.com/watch?v=V3nH4li8MjA
In this second video, I show what I've found by reverse engineering all the modem's schematic and I start testing the TX audio and interface part (and tuning the two FSK tones too).
Restoring a DCD model AC.350.OM acoustic coupler, S/N 350/381.
Part 1 here:
youtube.com/watch?v=ZAICCy4OC-8
Part 3: here
youtube.com/watch?v=V3nH4li8MjA
In this second video, I show what I've found by reverse engineering all the modem's schematic and I start testing the TX audio and interface part (and tuning the two FSK tones too).