12x4 Antenna switch control
Avoid collisions | Block on PTT | Manual or external control
Main functions:
- From two to four TRX.
- 12 antennas.
- Switched from external band decoder inputs.
- Or manualy with one light button and rotary encoder.
- Refresh input < 5 ms (arduino Nano).
- Input may be activate LOW or HIGH, must be configure on pcb and firmware.
- All mounted on compact pcb - useable without enclosure.
- Output connector included power for switch - all in one cable.
- 485 bus hardware support (firmware now not supported).
- BLOCKED
- More inpunts in same time = select only one antenna for each TRX.
- Colision between TRX and same antenna.
- Switching during PTT ON, separately for each TRX.
- SHOW on LCD
- Active number outputs
- Colision
- PTT ON
- Name of the antenna
- Support four line LCD, one for each TRX
ToDo:
- 485 remote control
- Integrate band decoders
 Schematics rev 0.2 |
Errata:
- U3 missed connection to +12V power in schematics and PCB layout.
Download
| PCB | ||||||
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| rev 0.2 | sch  |
pcb-f  |
pcb-b  |
kicad477 |  pcb 3D [8,5MB] |
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| 3D print component | ||||||
| LCD mount | l.stl1112 | r.stl1002 | .scad1062 | 3D preview |
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| Encoder mount | .stl887 | .scad1020 | 3D preview |
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| Arduino Firmware | ||||||
| by OK1HRA | rev 0.1532 | |||||
 Open-Hardware
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We believe open source is a better way of doing things. View and download the Shield Schematic and PCB Kicad/Eagle CAD files, LibreCAD .DXF, or Inkscape .SVG files. The hardware designs are released under the Creative Commons Attribution-ShareAlike 4.0 International License |
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