KACIFIC1 HIGH THROUGHPUT SATELLITE
Kacific1 is a next-generation geostationary satellite operating in the
Ka-band frequency spectrum. The satellite, which launched in December 2019, streams low-cost, high-speed, reliable, and stable broadband via 56 powerful spot beams. Wide reaching coverage will
extend over 25 countries in Asia Pacific with populations spread
across their many islands, mountainous and rural regions. Utilising
advanced ground segment technologies, Kacific1 delivers fast
internet speeds with a robust quality of service on a small user
terminals at a jaw dropping price per month.
MANUFACTURED BY BOEING. LAUNCHED BY SPACEX
Designed and built by Boeing, the Kacific1 payload is supported by the
reliable 702 MP platform. Kacific1 launched atop a two-stage
SpaceX Falcon9 rocket into geostationary orbit.
Kacific and SKY Perfect JSAT share the cost of the satellite platform
in a condominium arrangement. This platform supports the Kacific1
payload and a payload of SKY Perfect JSAT, which allowed both parties
to realise efficiencies in manufacturing and launch costs.
Kacific1’s coverage was designed with additional capacity expansion
in mind. By launching other follow-on satellites into different orbital
positions, Kacific will be able to provide additional capacity in the
Kacific1 coverage areas requiring more, as well as increase the total
Kacific1 is a High Throughput Satellite (HTS) because it reuses the
same spectrum (frequencies) multiple times in the 56 spot beams.
This stands in contrast to traditional FSS satellites with wide area
beams that can use the spectrum only once. In a sense, an HTS is
similar to a mobile cellular system that reuses frequencies between
cells. Consequently, the total HTS throughput is much higher than an
FSS satellite resulting in greater spectral efficiency and therefore
lower cost per bandwidth. Modern technologies such as adaptive
coding and modulation (ACM), signal pre-distortion and uplink power
control are used to increase the throughput and overall availability,
and, ultimately, improve the quality of service and user experience.
- 56 high throughput spot beams
- Delivering up to 60 Gbps of broadband capacity
- 550 to 600 ms latency
- Ka-band system
- Geostationary orbit
- 6,800 kg at launch
- 13 kw of electric power
Kacific1 uses Ka-band technology and spectrum. Because the
satellite antennas concentrate the spot beams for frequency reuse,
the resulting beams are also high power – resulting in availabilities
between 99.1% and 99.9% (depending on the location of the service
and the size of the user antenna). Such availabilities are entirely
suitable for internet services and in many places exceed the
availability of terrestrial networks or even mobile networks.
Kacific1 is a geostationary satellite, orbiting at 35,786km above the
equator. Satellites placed in the geostationary orbit offer a very stable
and consistent service and user experience. The signal of a
geostationary satellite always comes from the same location in the
sky and therefore only requires a simple antenna, with no moving
parts for reception and transmission.
The signal acquisition does not require any complicated terminal
handover from one satellite to another, as is the case with satellite
constellations using lower orbits. These constellations require
tracking of moving satellites by ground terminal, which can lead to
service issues such as temporary blockages due to landscape and
failures of tracking mechanisms. The handover process from one
satellite in the constellation to the next introduces a source of
instability that is absent in a geostationary satellite system.
Geostationary satellite latency is suitable for nearly all regular
internet usage, such as video streaming, voice calls over IP, general
browsing and even for distribution via 3G or 4G networks.
Geostationary satellites have been used for decades and are still the
most efficient and cost-effective way to deliver telecommunication
signals from space. The addition of powerful HTS technologies
tremendously enhances the ability of geostationary satellites to
deliver high-speed internet.
The three Kacific gateways will use equipment from top tier
companies to ensure that operations are efficient and reliable.
Kacific contracted industry leader Kratos Defence and Security
Solutions to design, build and commission the large 9-metre
antennas and radio frequency equipment. These state-of-the -art
gateways will be located in Australia, Philippines and Indonesia, with
the latter two locations using a site diversity arrangement to allow for
the best uplink availability possible. All gateway locations will be
controlled from Kacific’s centralised network operations centre (NOC)
LOCAL PARTNER TERMINALS
Most Kacific customers will receive and transmit data using a 1.2m
terminal. However in some instances, 75cm and 1.8m antenna
terminals will be deployed, depending on the exact location and
service required. Trunking services in some locations may be
available using up to 4.5m antennas.
Managed shared bandwidth services and dedicated bandwidth
pooling services are offered on 75cm to 1.2m Very Small Aperture
Terminals (VSAT). These small terminals offer speeds up to 200Mbps
with low dc power consumption, which means they can be operated
on low-cost solar power systems. These VSATs are small enough to
be transported by car, local boats, small aircraft and even on foot.
Traffic for our highest bandwidth products, such as trunking and
enterprise connectivity, will be accessed by antennas from 2.4m to
4.5m in diameter.
Combining a next-generation satellite with a
lean business model and affordable ground
technology, Kacific can provide connectivity
at a very low cost.
Targeted beams deliver high throughput
capacity that is strengthened by
custom-built gateway technology and
ground systems, resulting in fast end-user
speeds and more resilient links.
Satellite technology offers high-quality
communication networks without limits –
every mountain, every island, every