MLchartDataset catalogue

Automatic picture transmission

Term · Meteorology and atmospheric science · MLC-T-MET-003724

A system for broadcasting analog image data from weather satellites, allowing for direct reception by relatively simple ground stations. The Automatic Picture Transmission (APT) signal is a continuously transmitted, amplitude-modulated subcarrier that produces a visible-light or infrared image line by line. This system was widely used on NOAA polar-orbiting satellites, transmitting on frequencies near 137 MHz.

Table 1. Record
IdentifierMLC-T-MET-003724
FieldMeteorology and atmospheric science
AbbreviationAPT
Record as JSON 
{
  "id": "MLC-T-MET-003724",
  "term": "Automatic picture transmission",
  "field": "Meteorology and atmospheric science",
  "definition": "A system for broadcasting analog image data from weather satellites, allowing for direct reception by relatively simple ground stations. The Automatic Picture Transmission (APT) signal is a continuously transmitted, amplitude-modulated subcarrier that produces a visible-light or infrared image line by line. This system was widely used on NOAA polar-orbiting satellites, transmitting on frequencies near 137 MHz.",
  "abbreviation": "APT",
  "url": "https://mlchart.com/terminology/meteorology/automatic-picture-transmission/"
}

Record 839 of 10,816 in Meteorology and atmospheric science terminology (MLC-0110). Request the full dataset.