# FreeCAD tracker models

**Rubber duck antenna**:
- `antenna_base` - base for rubber duck antenna, to be printed with PETG filament.
- `antenna_cover` - cover for rubber duck antenna, to printed with TPU filament.

👉 Rubber duck antenna spiral widing was done with 1.3mm copper wire on 8mm aluminium scaffolding tube.

**Tracker case**:
- `aprs_tracker_e22_v2` - base for tracker case.
- `aprs_tracker_e22_cover_v2` - upper cover for tracker case.