Technical Data
✓ ComStellation – General Information:
ComStellation specializes in secure communications, providing sovereign solutions in the context of government institutions and national security.
On April 28, 2025, ComStellation signed a strategic partnership agreement with BulgariaSat, providing satellite connectivity and data transfer for dual-use (civil-military) applications.
▪ Available Services:
- VSAT
- Corporate networking
- SNG, occasional broadcasts
- Encrypted emergency communication
▪ Infrastructure:
- Primary and backup satellite control facilities (SCF with GCS - SCC, TT&C, NOC)
- 24/7 readiness, technical maintenance team
- Poland: planned relocation of part of the infrastructure and construction of local centers
▪ Satellite:
- BulgariaSat-1 (1.9°E) – fully operational, with confirmed coverage quality in Poland
▪ Licensing:
- International licenses (ITU)
- Capability to use Ku, Ka, Q, and V bands
- Alternative Ka-band development plans at 1.9°E based on demand
✓ Technical Parameters Verified by the National Institute of Telecommunications (IŁ-PIB):
Tests: May 19-22, 2025, conducted by the National Institute of Telecommunications (IŁ-PIB) with participation from POLSA and BulgariaSat.
Critical locations in Poland: satellite beam tests demonstrating full territorial coverage of Poland from BGS-1 (1.9°E).
▪ Results:
- Confirmed coverage of all of Poland, including areas critical to national security
- Eb/No margin > 18 dB for 60 cm antenna - high interference resistance
- Secure link capacity: 100+ Mbps downlink / 20+ Mbps uplink with 60 cm antenna terminal per transponder
- Terminal activation time without pre-configuration: ~15 minutes
- VoIP and video conferencing - very good quality and stable connection despite GEO latency (~550 ms)
▪ Conclusions:
- The conducted tests confirm that the satellite service offered by ComStellation - based on the tested beam covering Poland from the BulgariaSat-1 satellite - is well-designed, highly resistant to interference, and fully adapted to the needs of secure communication throughout Poland, even for small portable terminals (60 cm antenna).
- Further use of this infrastructure is recommended for building secure and sovereign satellite communication, especially in the context of government and national security needs.
✓ BulgariaSat Technical Data:
▪ BulgariaSat-1 Satellite:
- Launched on June 23, 2017, by Falcon 9 (SpaceX) from Cape Canaveral (LC-39A)
- Geostationary orbit GSO: 1.9°E
- Launch mass: 3,669 kg
- Platform: SSL-1300 (manufacturer: SSL/Maxar)
- Fuel for 20+ years
- Power: 2 solar panels, ~10 kW
- Verified system life until 2039
- Transponders: 33 Ku-band, 2 beams - European and Balkan (steerable)
- Coverage: Balkans, Poland, Europe, Ukraine, Turkey, Caucasus, North Africa, Middle East
- Capacity: 100+ Mbps downlink / 25+ Mbps uplink per transponder for 60 cm antenna terminals
▪ Ground Infrastructure:
- Two satellite control facilities (SCF) - selected for low weather risk
- Each facility equipped with a complete GCS consisting of NOC, SCC, TT&C, with 11.1 m antennas (transmit/receive)
- Network Operations Center (NOC) provides 24/7 support
▪ Licenses (ITU):
Position 1.9°E registered by Bulgaria for BulgariaSAT EAD:
- Uplink 17.3-18.1 GHz / Downlink 11.7-12.5 GHz
- Uplink 13.00-13.25 GHz / Downlink 11.2-11.45 GHz
- Uplink 14.00-14.25 GHz / Downlink 12.5-12.75 GHz
- TT&C
- Ka band: Uplink: 27.5-31 GHz / Downlink 17.7 - 21.2 GHz
✓ Development Plans:
▪ Accession to the European secure satellite communications program
▪ Development of a technological cluster in the region
▪ Additional local HUBs
- Construction of a new HUB in Poland
- Technology and competence transfer
- Transfer of best practices and know-how
▪ New Satellite Control Facility in Poland
- Construction of SCF (Satellite Control Facility) on Polish territory
- Reduction of dependence on foreign infrastructure
▪ New Ka-band satellite project
- Project to build a new Ka-band satellite at 1.9°E
- Increased capacity and flexibility of services in the CEE region