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Tag Archives: sound card interface
Interface v0.20 laid-out
Having recently explored the signal integrity issues in the Interface v0.11, I’ve re-tooled the board to use the TY-311P transformers in v0.1 which meant a total redesign of the layout. In the most recent version, I’ve grouped the components in … Continue reading
Posted in Project
Tagged DC bias, decouple, electret, FET, impedance, isolation, sound card interface, transformer
2 Comments
More testing …
I thought that I would do a little more side-by-side comparison between the transformer and the capacitor methods of signal isolation. My test bench consisted of: DG1022 function generator DS2202 oscilloscope Sound Card Interface v0.11 As I found that there … Continue reading
Posted in Project
Tagged capacitance, DG1022, DS2202, fldigi, inductance, sound card interface, SoundBlaster SB1140, testing
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Sound Card Interface v0.11 – initial testing
So I received my v0.11 boards back from the fab house and soldered one up last night to begin testing. I managed to squash a few bugs in the initial design, as well as identify a couple of new ones … Continue reading
Posted in Project
Tagged capacitor, DG1022, DS2202, isolation, sound card interface, tranformer
1 Comment
Sound Card Interface v0.11
Just a quick update on my all-in-one interface card: I sent off another board to be fabricated to test some of the functionality that I’d like to provide in the final interface. With any luck, I should be getting some … Continue reading