EUMETCast Reception

Setup for the reception and analysis of EUMETCast Data

Data from EUMETSAT is received via a TV broadcasting satellite, Eutelsat 10A at 10°E.

The service is called EUMETCast, and it is provided by a tq®-TELLICAST server. The data is only broadcast once so if you miss a transmission you lose the data.

EUMETCast services provided by EUMETSAT include data from Meteosat-10 (MSG-3), Meteosat-9 (MSG-2), FSD (Foreign Service Data), NOAA 19 MODIS (Terra/Aqua) and Metop.

Meteosat-10 (MSG-3) is a second-generation geostationary weather satellite for Europe, providing twelve spectral channel. FSD - foreign satellite data includes hourly images from geostationary satellites around the world, such as the GOES-West and GOES-East stationed over the Americas, Meteosat-7 provides the Indian Ocean Data Coverage (IODC), and MTSAT-1R covers Asia and Australia.

EARS-AVHRR provides high-resolution 5-channel HRPT image data from the AVHRR scanner on NOAA-19. Data from several ground stations (Canary Islands, Northern France, and Svalbard, north of the Artic Circle) is combined to give Europe-wide coverage. The data has a 1km per pixel ground resolution.

EUMETCast is the main dissemination for data from Metop-B satellite, launched in September 2012. This satellite provides high-resolution continuous round-the-world coverage, with data at 1km per pixel resolution.

Dish
80 cm dish and LNB purchased from GEO shop. Mounted on the front wall of the house.
 
Ayecka
Ayecka SR1 DVB-S2 IP Rx. This is a network device, connected to the PC via a dedicated LAN.
 
EKU
EUMETSAT's EKU, supplied by them at €40. Relevant software package costs a further €60. Both direct from EUMETSAT.

rosse

PC Jupiter is the receive & processing PC. This I built in June 2014. Intel(R) Core(TM) i7-4770K CPU 3.5Ghz; RAM 32GB; Windows 10 Home 64 bit. 1 SSD (256Gb) & HDD 2 x 2TB . It also has a 500MB RamDrive from Dataram This PC is on continuously 24/7. Not only does it run TelliCast all day it also runs David Taylor's 2 instances of MSGDataManger, GeoSatSignal & MSG Animator [see below]. It regularly uploads data to my website via automated FTP. This PC also runs 2 instances of Metop Manager, AVHRR Manager and Modis L1 Viewer.

Since Jan 16 this PC is also used for all other computing needs. The other ended up being updated for my grandson to edit videos!


EUMETSAT's EUMETCast service overview

There was a problem with MSG-1's power amplifiers during the early phase of commissioning requiring an alternative means for disseminating MSG data to be found. Trials of MSG data via what is now called EUMETCast (EUMETSAT's Multicast Distribution System) began at the end of April 2003. It is transmitted by EUTELSAT's 10A satellite stationed at 10°E. using the DVB-S2 format used by digital satellite TV. The trial period, designed to fully test the system infrastructure, ended in late 2003 and the service became fully operational as the primary 0° longitude service in late January 2004.

The EUMETCast service has expanded from the early days of Europe only to:

EUMETCast-Europe via EUTELSAT 10A in Ku-band (the original) to

EUMETCast-Africa via Atlantic Bird-3 in C-band and

EUMETCast-Americas via NSS-806 in C-band and

carries Meteosat-10 HRIT/LRIT and meteorological product data

+ foreign satellite data - Meteosat-7 Indian Ocean Data Coverage, GOES-E, GOES-W and MTSAT

+ Meteosat-9 Rapid Scanning Europe

+ NOAA-18 and 19 regional AVHRR data and global GAC data and NOAA ATOVS data

+ Metop global AVHRR data.

Services from EUMETCast-Africa and EUMETCast-Americas differ slightly in content from EUMETCast-Europe.

EUMETSAT document EUM TD 15 will give a full overview of the system.

System hardware requirements.

The SR1 Advanced DVB-S/S2 Receiver for EUMETCast Reception.


The main component of the system is the receiver. Available from the GEO Shop is the Ayecka SR1' an advanced DVB-S2 VCM Receiver for the new EUMETCast delivery system. This is an IP receiver and is linked to your PC via an Ethernet cable.

You will also need the TELLICAST software CD-ROM supplied by EUMETSAT once you have registered, for installing the TELLICAST and dongle software [see below].

The receiving antenna is the familiar offset satellite TV type dish. An 85 cm is recommended by EUMETSAT for most of Europe with a good quality standard Universal digital satellite TV LNB.

Good quality satellite TV coax cable between the dish and the receiver is required, such as CT100. Care should be taken when stapling and routeing this cable as digital signals can suffer losses due to sharp bends or cable constriction. Setting up the dish to Eutelsat 10A at 10°E is not too difficult if you have a satellite TV level meter at the dish such as the TechniSat SatFinder meter. This meter is very sensitive and useful. It won’t however tell you which satellite you are pointed at though. Alternatively using an analogue satellite TV receiver and a TV at the dish speeds things up – you always ‘see’ a ‘picture’ as you adjust your dish – unlike digital TV where you have to wait for the picture to lock-up before it is displayed.

For those used to prime focus dishes remember offset dishes do not ‘point’ directly at the satellite in the elevation sense. They are much flatter towards the horizon owing to the offset feed configuration.

The Ayecka SR1 has a console utility allowing one to fine tune reception.

If you read EUMETSAT's EUMETCast Overview document EUM TD 15 contained on the TELLICAST CD-ROM you will see the system is based on a 2 PC set-up - there is now a vast amount of data disseminated via this service. However the majority of amateur users given modern day computer specifications are able to receive - and display - all services using a one computer set-up.

EUMETSAT information here


Software requirements for reception and display of MSG data.

TELLICAST software.

To receive the EUMETCast service you will need this software tq®-TELLICAST . This handles the data stream which is sent in packets and then converted into files. The software is supplied on a CD with an installation guide and the required USB dongle by EUMETSAT following successful registration for a cost of 100 € (EKU & Software). You will also be sent your username and password - required for setting up this software.

Image display software.

Some of the imaging in the EUMETCast service uses different formats, so a suite of software is required to display all the products.

David Taylor has a comprehensive suite of software:

MSG Toolset   HRPT Toolset   Metop, GRIB & HDF  

Rob Alblas has free software, xrit2pic, for display of EUMETCast products: see his website: www.alblas.demon.nl/wsat/index.html

Many amateurs including GEO members took part in the early trials of the 'EUMETCast' service using only one computer. A great deal ofvaluable operational data was fed back to EUMETSAT from the varied user station set-ups. These experiences, gathered from amateurs since the trials began in late April 2003, as to how the system is performing and what equipment/operating software people are using, have allowed EUMETSAT to tweak and update the service. User information has and continues to been fed back to EUMETSAT. This has proved very useful,given the different configurations of user stations.

EUMETSAT remian keen to have feedback on users' experiences in order to correct any anomalies and/or make the service more user friendly. Users should give feedback on their experiences to the User Service at: ops@eumetsat.int.

Sharing of user experiences; help, advice and problem solving are available on: http://groups.yahoo.com/group/MSG-1/ . You are recommended to join this group run by Arne van Belle, Douglas Deans and David Taylor.

The footprint above illustrates the general coverage of the new service.

The required antenna sizes depend on reception station location, the EIRP, the typical weather patterns and the selected DVB-S2 parameters (e.g. MODCOD, Symbolrate).
The basic service can be received with the currently installed antennas in most areas across the footprint.
For the High Volume Service larger antennas are required, but at clear sky conditions even the Basic Service antennas might be usable. Please select the following link to display the required antenna sizes depending on the availability. An antenna size for 99.98% or better availability is recommended.

Antenna Sizes and Availability for the Basic Service (8PSK3/5) and the High Volume Service (16APSK2/3).

The plots show the yearly availability taking into account typical weather patterns for standard antenna sizes. Professional users should aim for 99.98% availability.

 

globe

This picture is still only one sixteenth the size (number of pixels) of the received image.

Software

TelliCast Data from the satellite is tagged with a packet identifier called the PID, and using the setup for your Rx Box you can choose which PIDs should be handled.

The data is sent from the Rx to the TelliCast receiving program as an IP multicast stream. The data is further divided into different channels. A single PID may contain a number of different streams, but each stream will have a different multicast address. The multicast address of the "Announcement channel" stream is fixed, and that channel talks to the TelliCast program saying what data is available.

The TelliCast program is configured to accept particular data channels (by editing the recv-channels.ini file in the TelliCast software -see my config file below).

Some parameters of reception such as Signal Strength and Signal Quality can be monitored by MRTG (Multi Router Traffic Grapher).

To set up your own MRTG process see bottom of page.

Data is transmitted from the various spacecraft to Earth stations in Germany (Meteosat 10), Svalbard (Metop-B) and Canary Islands, Northern France, and Svalbard (NOAA 19 AVHRR).

Meteosat 10 data is refined, compressed and encoded as HRIT and LRIT files.

The HRIT and LRIT files are added to the EUMETCast service.

The EUMETCast data is sent up to the Eurobird 9 satellite as small packets.

Other packets of data, such as Metop-B and Foreign Satellite Data (FSD) are also sent up to Eurobird 9, but with different packet identifiers (PIDs).

The Dish, LNB, and SR1 receive the packets of data.

The data channels chosen in my system are in my recv-channels config file. Follow links here for full files.

recv.ini

recv-channels.ini

tellicast1 tellicast2 tellicast3

The various pages of the Tellicast software give information regarding data traffic, active channels and the number of lost and recovered data packets.

Data Manager software turns the files into a usable format for producing images.

I use the following software from David Taylor.

To manage and decode Meteosat-10 (MSG-3) data, I use MSG Data Manager.

To make real-time monochrome animations from Meteosat-10 or Foreign Satellite Data, I use MSG Animator.

To make false-colour images, remap to standard map projections, or animate the images I use GeoSatSignal.

To manage and decode Metop-B data I use Metop Manager.

To manage and decode NOAA 19 data I use AVHRR Manager.

To make false colour corrected images out of this data I use HRPT Reader.

I also use Kepler Manager (satellite orbital information), WxTrack (satellite tracking), GroundMap (Correct Geometry Mapping).

David has written extensively about EUMETCast and his software on his website.

In my opinion using his software is the only practical 'joined up' solution to managing the vast amount of data available from EUMETCast.

The software is competetively priced (you get a months free trial for each program).

The software is continually updated. Almost uniquely you have direct access to the author and fellow users through his SatSignal Yahoo Group.


If you require further information on my system and setup email me. There is much more information on David Taylor's website with links to other fora.

Join GEO, Group for Earth Observation

Look at the EUMETSAT website for more technical information on EUMETCast, including hardware requirements, how to buy an EKU and relevant software and a comprehensive trouble shooting guide.


How to set up MRTG Multi Router Traffic Grapher on a Windows PC.

Create 3D Images from HRPT Data

Top

© Alan Banks 2017

This page was last modified on 07 October 2016