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18 lines
826 B
Markdown
18 lines
826 B
Markdown
## Board design files
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This directory contains Eagle CAD files as well as schematic PDFs and Gerber exports for board fabrication.
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The board stackup is good enough for either OSH Park 4-layer, or JLCPCB 4-layer with controlled impedance (JLC2313).
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### Latest Board
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Revision 11.5.2 does away with the (hard to source) regulator from ST and replaces it with a Zener + NPN combination that delivers about 8.5V to the PA under load.
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### Breakouts
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These directories contain Eagle and FreeCAD files for the NMEA0183, NMEA 2000 and USB adapters. Their front panels are PCBs so gerbers are
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here as well. The UART+USB adapter is a very basic breakout board for those who would rather wire the transponder themselves.
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### Antenna
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This directory contains FreeCAD and STEP exports of the 3D printed parts that make up the antenna.
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