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Ligado Networks
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Ligado Networks, formerly LightSquared, formerly Mobile Satellite Ventures (MSV), operates space- and ground-based wireless services. The space services were originally provided using the MSAT-1 and MSAT-2 satellites in geostationary orbit, but now uses the Skyterra-1 satellite, also in GSO at the 101 deg W orbital slot. A second satellite, Skyterra-2, was planned, but is on hold due to the earlier LightSquared bankruptcy.
MSAT-1 was launched in 1996 operated by U.S. and Canadian companies, while MSAT-2, also referred to as AMSC-1 (for American Mobile Satellite Consortium), was launched in 1995 and operated by American companies. MSAT-1 was located at 106.5 W, and MSAT-2 was located at 101 W.
LightSquared originally desired to supplement its mobile-satellite service with an Ancillary Terrestrial Component (ATC) network comprised of up to 40,000 base stations in their 1525-1559 MHz band. However, concern over interference to the embedded base of GPS receivers operating just above 1559 MHz scuttled that idea after it had already been approved by the FCC. Lawsuits and bankruptcy soon followed. In 2016, Ligado filed a plan with the FCC, agreeing to move its ATC operations to the lower part of the band at
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Frequency Bands |
| Band | Use | Service11 | Table |
| 1530 - 1544 MHz | LightSquared MSAT-2 Satellite (space-to-Earth) | Mobile-satellite | N |
| 1545 - 1559 MHz | LightSquared MSAT-2 Satellite (space-to-Earth) | Mobile-satellite | N |
| 1631.5 - 1645.5 MHz | LightSquared MSAT-2 Satellite (Earth-to-space) | Mobile-satellite | N |
| 1646.5 - 1660.5 MHz | LightSquared MSAT-2 Satellite (Earth-to-space) | Mobile-satellite | N |
| 13 - 13.15 GHz | LightSquared MSAT-2 Satellite Feeder Links (Earth-to-space) | Fixed-satellite | N |
| 13.2 - 13.25 GHz | LightSquared MSAT-2 Satellite Feeder Links (Earth-to-space) | Fixed-satellite | N |
Frequencies |
| Frequency | Bandwidth | Use | Service | Table |
| 11.7005 GHz | - | LightSquared MSAT-2 Satellite TT&C (space-to-Earth) | Fixed-satellite | N |
| 11.701 GHz | - | LightSquared MSAT-2 Satellite TT&C (space-to-Earth) | Fixed-satellite | N |
| 14.005 GHz | - | LightSquared MSAT-2 Satellite TT&C (Earth-to-space) | Fixed-satellite | N |
| 14.4995 GHz | - | LightSquared MSAT-2 Satellite TT&C (Earth-to-space) | Fixed-satellite | N |
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