NOAA APT (Automatic Picture Transmission) satellites are Low Earth Orbit (LEO) weather satellites operated by the National Oceanic and Atmospheric Administration (NOAA). These satellites capture and transmit images of Earth's weather patterns, providing valuable data for meteorological analysis and forecasting.

The NOAA APT satellites use omni-directional antennas to broadcast the images they capture in the APT format. APT signals can be received and decoded by enthusiasts using simple setups, such as a 2-meter omni-directional antenna and an SDR (Software-Defined Radio) dongle, along with appropriate software.

By receiving and decoding APT signals, individuals can access real-time or near-real-time images of Earth's weather, including cloud formations, storm systems, and other meteorological phenomena. These images contribute to weather monitoring efforts and help in predicting and understanding weather patterns on a local and global scale.

Overall, NOAA APT satellites play a crucial role in collecting and disseminating weather information, empowering amateur enthusiasts and professionals alike to actively engage in weather observation and analysis.

 Using a 2-meter omni-directional antenna, an SDR dongle, and free software, I can receive and decode images from the Automatic Picture Taking (APT) Low Earth Orbit (LEO) weather satellites, specifically NOAA 15, NOAA 18, and NOAA 19. You can check out the images here.

GOES images can be found here.

If you have a SoftwareDefineRadio dongle, here is some info on how you can receive these images also.