This gist contains notes to get you up and running receiving NOAA weather satellite images using an off-the-shelf SDR and off-the-shelf or homemade antenna. The basic setup is: Antenna + USB SDR ⭢ SDR tuner software like SDR Sharp ⭢ Automatic Picture Transmission (APT) Decoder like WXtoImg or AptDec. To connect your tuner software and decoder software, use a virtual audio router like the free Virtual-Audio-Cable (Windows, MacOS), Soundflower or Blackhole (MacOS), Jack (Windows, MacOS, Linux), etc.
There's a lot about this online, and several options one can buy readymade. For a quick homemade antenna, I recommend the V-dipole design from Adam-9A4QV. A blog post about it from RTL-SDR.c