METEOR-M High Resolution Picture Transmission (HRPT)
|Frequency Range||1700 MHz - 1700 MHz|
|Short Description||A variant of the NOAA HRPT signal, which has a different data structure and better low-signal handling characteristics.|
|I/Q Raw Recording||—|
The Meteor-M series of satellites transmit high resolution pictures from the MSU-MR (main radiometer) and additionally, data from MTVZA (a microwave sounding instrument) over an HRPT link. However, while the signal is still being PSKPhase-Shift Keying modulated, the data structure is different than the NOAA HRPT signal. This gives improved low-signal handling characteristics and makes the signal incompatible with NOAA HRPT decoders.
- 6 channels from MSU-MR radiometer
- 30 channels from MTVZA microwave sounder
- DCP (Data Collection Platform) data
- BIS-M (onboard information system) data
- Spacecraft RTC (Real Time Clock)
- Spacecraft telemetry
The signal is transmitted as a continuous sequence of phase-shift keyed Manchester encoding at 665.4 Kbit/s rate (transport rate is 1330.8 Kbit/s). Logical "1" is represented by symbol “10” (two bits), and logical "0" - by symbol "01" (two bits).
Data is packed into frames that are sent continuously one after another without intervals using time-division multiplexing. One frame consists of 1024 bytes. The most significant bit of each octet comes first.
- Right-hand circular polarization
- Phase shift keying modulation
- 3 MHzMegaHertz (MHz) 10^6 Hz bandwidth
- Transmit power 5 watts
Satellites transmitting METEOR-M HRPT
|METEOR-M N1||1700 MHzMegaHertz (MHz) 10^6 Hz||No imagery, TLM and carrier only|
|METEOR-M N2||1700 MHzMegaHertz (MHz) 10^6 Hz||Weak due to broken antenna, broken MTVZA|
|METEOR-M N2-2||1700 MHzMegaHertz (MHz) 10^6 Hz||Only when not eclipsed|