NOAA Weather Satellites Transmit APT Images
Analog Picture Transmission (APT)
What is APT?
APT is a type of satellite imagery that is transmitted in an analog format. This type of imagery is typically used for weather forecasting and other applications that require real-time data.
NOAA weather satellites are equipped with APT transmitters that send images of the Earth's surface back to Earth. These images can be received by anyone with a properly equipped receiver.
The APT signal is transmitted on a frequency of 137 MHz. The bandwidth of the signal is 44 kHz.
The following NOAA satellites are currently transmitting APT images:
- NOAA 18
- NOAA 19
- NOAA 20
The frequencies for these satellites are as follows:
- NOAA 18: 137.6200 MHz
- NOAA 19: 137.5000 MHz
- NOAA 20: 137.9125 MHz
To receive APT images, you will need a receiver that is capable of receiving the 137 MHz signal. You will also need a computer and software to process the images.
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