GOES Rebroadcast (GRB)

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GOES Rebroadcast (GRB)
Frequencies 1681.6 MHz,1686.6 MHz
Frequency Range 1681.6 MHz - 1686.6 MHz
Mode DVB-S2, RAW
Modulation QPSK16,8PSK
Emission Designator
Bandwidth 10 MHz
Location Worldwide
Short Description GOES Rebroadcast (GRB) is a form of data sent from the GOES-R series of satellites that contain information from all of the instruments on board the GOES satellites
I/Q Raw Recording
Audio Sample

The GOES Rebroadcast (GRB) data is a set of data products broadcasted from the GOES-R series of satellites that contains information from all of its on-board instruments. The data contains imagery and info from the Advanced Baseline Imager, the Solar Ultraviolet Imager, as well as the standard HRIT data.

The signal is broadcasted as a DVB-S2 (Digital Video Broadcast, standard 2) signal modulated as both QPSKQuadrature Phase-Shift Keying (2 bits per symbol) and 8PSK8-Phase Phase-Shift Keying (3 bits per symbol), with forward error corrections of 2/3 and 9/10. The sample rate is around 7.8-8.6 Million samples per second.

The dish size recommended for RFRadio Frequency data reception is 2m-5m, larger being better.

An example of all GOES data can be found on NOAA's website

The images in the GRB data are also quite frequent with very little amounts of filler data.

Here is the official data table for the GOES GRB data:

Product Data
Full Disk Imagery Every 5-15 minutes
Other modes 3000km x 5000km CONUS, 1000km x 1000km Mesoscale
Polarization Dual Circular Polarized
Polarization Dual Circular Polarized
Receiver Center Frequency 1681.6 MHzMegaHertz (MHz) 10^6 Hz
Data rate 31 Mbps
Antenna coverage Earth coverage to 5
Data sources ABI (16 bands), GLM, SEISS, EXIS, SUVI, MAG
Space weather 2 Mbps
Lightning data 0.5 Mbps


1686.6MHz is the primary frequency used for the GRB data with a bandwidth of around 10MHz and a noise-to-temprature ratio of around 15.2db/K for worst case locations.

Decoding Software[edit]

https://satdump.org "SatDump"