15 April 2001
| Satcoms | Eutelsat Looking for Open-Sky Partners GlobeCast Picks ND SatCom as Technology Partner Satellite Patent for DG Systems SSET Demonstrates Broadband Gateway in China STM Wireless Receives US$ 7 Million from SkyOnline Strategic Alliance Between Xantic and ICTI |
| Earth Observation | L-3 Comms to Build Antenna System for Australian Surveying and Land Information Group |
| Technology | Solar Sail Flight Delayed |
| Launch Services | ATV to
Use General Dynamics Engines GSLV Launch Abort Analysis Pratt & Whitney Developing New Upper Stage Engine |
| Business | Alcatel Sues Loral Integral Systems Opens Colorado Springs Office Security Worries May Halt SingTel's Optus Acquisition |
| Products and Services | Carrier Monitor from Transcendental Demodulator Chips From Mitel Loral CyberStar Launches Enhanced Video-To-The-Desktop Services |
| People | TRW's CFO to Retire |
| Previous News |
Eutelsat Looking for Open-Sky
Partners
Eutelsat
has introduced the "Open-Sky" open standard service platform for streamed video
and audio content, high-speed Internet and fast file delivery.
The service is already running from the Eutelsat's W3
satellite at 7° E and carrying 20 unencrypted international video services
that are generally being streamed at speeds from 256 to 700 kb/s using MPEG-4
encapsulated over IP. This is expected to grow to nearer 50 videostreaming
services by the end of April.
Users need a satellite dish and PC
equipped with an add-in card to receive these new services and can select
between accessing content on-line or retrieving content delivered by satellite
and stored in their PC in off-line mode.
Eutelsat is negotiating with
multiple content and service providers who have imaginative and experimental
concepts to contribute to Open-Sky. The baseline is that services should be of
interest to the general public and conform to a common IP broadcast format over
satellite.
Eutelsat will expand the capacity available for Open-Sky
using the W3A satellite, which will be launched in the second quarter of 2003
and co-positioned at 7° E with W3. W3A will also include a Skyplex payload
that will permit decentralised access to satellite capacity for local content
providers.
GlobeCast Picks ND SatCom as
Technology Partner
GlobeCast has chosen ND SatCom GmbH as technology
partner for its new MCast Events streaming service.
MCast Events is the first mobile webcasting service enabling live reporting and
on-demand video streaming to the Internet from anywhere in the world. The IP
data stream is uploaded via satellite onto the Internet by a specially
equipped, fully automated webcasting vehicle, the ND SatCom web.SNG. The
vehicle is integrated in a satellite-based IP Network, so that the team can
monitor the webstream host directly from the vehicle, as well as handle all
their other routine business.
Clients can book and request the service
by phone. GlobeCast then makes the web.SNG vehicle and satellite capacity
available and takes care of the entire transmission. The whole makes a
full-service package for fast reporting to the Internet.
The service
is especially attractive for Internet Service Providers (ISPs), broadcasters,
web portals, news services and agencies, media and multimedia production firms,
corporate and SNG service providers.
The web.SNG broadcast vehicle is
built by ND SatCom, and was specially designed for fast Internet reporting. It
features a highly ergonomic interior and has space for all the equipment needed
for live reporting and web video editing. The journalists must make only
minimal compromises in comparison to a normal studio.
The web.SNG is
the world's only vehicle allowing fully automatic satellite transmissions. The
press of a single button extends the antenna and points it at the satellite.
Data, speech and video transmission is equally simple. The combination of IP
and SNG technology ensures total Internet interconnectivity and permits
interactive chatting with the Internet audience.
Satellite Patent for DG Systems
DG Systems Inc has
announced that its StarGuide Digital Networks division, an innovative provider
of satellite transmission technology, has been issued US Patent Number
6,212,201, entitled "Method and Apparatus for Dynamic Allocation of
Transmission Bandwidth Resources and for Transmission of Multiple Audio Signals
with a Video Signal."
This new patent covers
multiplexing methods for the transmission of digital media via satellites and
other transmission mediums in a uniquely powerful, bandwidth efficient, and
flexible manner.
Since its inception, StarGuide has procured eight
patents in the field of satellite transmission technology, with additional
patents allowed and pending domestically and abroad.
The latest
patented technology enhances satellite, terrestrial, and Internet distribution
for broadcasters such as Westwood One, Infinity Broadcasting, Bloomberg, and
Osaka Yusen Broadcasting who are currently using the proprietary StarGuide II
satellite transmission system, as well as broadcasters who are deploying the
StarGuide III system, including Clear Channel, Premiere, ABC Radio, Jones
Broadcast Programming, and the Shenzhen Stock Exchange in China. Broadcasters
will enjoy increased flexibility, reliability, and bandwidth efficiency when
delivering audio, data, or video signals via the StarGuide system.
SSET Demonstrates Broadband Gateway
in China
SSE
Telecom Inc has installed a system demonstrating its iP3 Gateways at China
National Petroleum Corporation (CNPC) in Gu'An, China, near Beijing.
SSET iP3 Gateways are being used to provide high-speed
broadband communication over satellite via Internet Protocol (IP) packets. A
live demonstration with iP3 gives CNPC the opportunity to understand IP traffic
over satellite.
The iP3 allows easy configuration and monitor &
control from anywhere on the network. The iP3 is able to deliver mixed-traffic
via communication on single carrier at high speed and route the traffic to
different remotes by IP address in the sky. The single platform has the ability
to establish point-to-point link, star network, or full mesh network using the
same hardware.
CNPC currently has many VSATs deployed across China.
The iP3 provides much higher bandwidth and more flexibility than VSATs, since
the iP3 Gateways can be configured with asymmetric links depending on the
traffic patterns, which use the satellite bandwidth more
efficiently.
STM Wireless Receives US$ 7 Million
from SkyOnline
STM
Wireless Inc (STM) has been selected by SkyOnline Inc for the supply of over
1,000 VSATs for use in Latin America.
The order also
includes equipment for several hubs, which will be used with SpaceWeb VSATs to
expand SkyOnline's satellite-based data and Internet service offerings, which
complement its extensive telephony services.
The order from SkyOnline
for approximately US$ 7.7 million will further increase STM's backlog and sales
in its line of SpaceWeb VSATs and the new multi-channel DAMA VSATs, that are
based on its popular SES terminals. The SpaceWeb Online VSAT is designed as a
platform for commercial and multi-user applications as opposed to single user
and consumer applications. The system is currently in use by a growing number
of service providers and Enterprise networking customers, particularly in the
banking sector.
Strategic Alliance Between Xantic
and ICTI
Xantic
(former Station 12 and SpecTec) and Innovative Communications Technologies Inc
(ICTI), a subsidiary of Advanced Remote Communication Solutions Inc (ARCOMS)
have entered into a strategic alliance agreement to offer a suite of broadband
solutions to the mobile satellite community on a global basis.
Financial details of the agreement were not disclosed.
The agreement initially focuses on introduction and launch of ICTI's
patent-pending Inmarsat Capacity Expander (ICE) technology to maritime, land
and aeronautical users requiring very high speed (64 to 256 kb/s)
point-to-point connections via Xantic's Land Earth Stations.
ICTI's
ICE technology enables an extensively enhanced means of point-to-point full
duplex digital mobile satellite connections. ICE significantly increases the
data rate achievable within a standard Inmarsat 100 KHz channel allocation. An
ICE-enabled Inmarsat terminal can presently double the data rate of a standard
terminal in a 100 KHz slot by providing 128 kb/s of throughput instead of 64
kb/s. Alternatively, the same terminal can achieve 256 kb/s in a 200 kHz
channel allocation.
The ICE service will be provided by Xantic as a
brand new offering, delivering both higher data rate connections as well as
multiple concurrent (lower data rate) connections. The ICE technology will be
used to arm end users with applications possibilities previously unattainable
over mobile satellite. For the first time over the Inmarsat system, users will
have the opportunity to enjoy truly broadband connections, enabling
applications such as remote LAN access, streaming video content and high-speed
Internet access to/from mobiles on vessels, aircraft, offshore production rigs
or temporary office sites. The ICE technology itself is
commercial-off-the-shelf (COTS) and can be added in the form of a retrofit kit
to standard Inmarsat-A, -B and Aero-H terminals.
L-3 Comms to Build Antenna System
for Australian Surveying and Land Information Group
L-3 Communications' EMP Systems division has
received an award to supply an X band satellite tracking antenna system to the
Australian Surveying and Land Information Group (AUSLIG) for its Australian
Centre for Remote Sensing (ACRES) ground station.
EMP
Systems will deliver this new antenna for installation at the ACRES Data
Acquisition Facility located in the Australian Outback, near Alice Springs.
Delivery is scheduled for December of 2001.
L-3's Model 150 X band
antenna is 5.0 meters in diameter and provides the ability to track and receive
image data signals from a wide array of satellites including RADARSAT-1,
LANDSAT, SPOT, ERS, and IRS-1C/D. This antenna system features an EMP Systems
dual-drive, 3-axis positioner with a 5.0 meter antenna reflector, subreflector,
and an X band radio frequency feed mounted in a Cassegrain configuration.
Provided with the system is a microprocessor-based Antenna Control Unit (ACU),
Model ACU-21. The ACU-21 permits system operation in Manual, Program Track, and
Standby modes, as well as other sub-modes of operation.
AUSLIG is
Australia's National Mapping Agency and provides fundamental geographic
information to support the mining, agricultural, transport, tourism, and
communications industries, and defence, education, surveillance and emergency
services activities. The goal of ACRES, Australia's principal earth resource
satellite ground station and data processing facility, is to maintain and
periodically refresh a comprehensive archive of satellite remotely sensed data
over Australia to help ensure that fundamental geographic information is
available for the benefit of the Australian community. ACRES' primary functions
are to acquire, catalogue, archive, process and distribute remotely sensed data
acquired from earth observation satellites for both scientific and operational
applications.
Solar Sail Flight Delayed
The Planetary Society's
Cosmos 1 test flight of a solar sail will be delayed due to a pre-launch
testing accident that damaged the spacecraft.
The
sub-orbital test flight was scheduled to launch from a Russian Delta III Class
submarine in the Barents Sea on April 26.
The accident occurred during
a ground test at Severmosk, the launch port and preparation area near Murmansk,
Russia. The test craft arrived there from the Babakin Space Center located near
Moscow. The Babakin Center is developing the craft for The Planetary
Society.
Preliminary information indicates that the accident occurred
when the actual operation sequence of the spacecraft was initiated while the
craft was mounted for testing.
The spacecraft will be returned to the
Babakin Space Center where it will undergo checks, repairs, re-assembly and
tests. The test flight will then be re-scheduled.
ATV to Use General Dynamics
Engines
Astrium
GmbH, of Bremen, Germany has awarded a US$ 7.9 million contract to General
Dynamics Ordnance and Tactical Systems, a business unit of General Dynamics.
The contract calls for the purchase, over the next two years, of bipropellant
Model R-4D-11 rocket engines to support the Automated Transfer Vehicle
(ATV).
The ATV is a human-rated vehicle which will
provide supplies and services to the International Space Station. Each ATV
vehicle will be equipped with four R-4D-11 engines used for orbit-changing
(delta-V) manoeuvres during the ATV's approach and descent from the
International Space Station. The R-4D-11 engines can also be used to re-boost
the Space Station to higher orbits when the ATV is docked.
The R-4D-11
bipropellant rocket engine has been the "work-horse" of the satellite industry
for decades. It has been used on several human-rated vehicles, and has provided
apogee insertion for most geostationary satellites currently on
orbit.
GSLV Launch Abort Analysis
The maiden flight of
India's GSLV launcher has been rescheduled for next week following an abortive
launch on 28 March.
The new launch window for the
Geo-synchronous Satellite Launch Vehicle (GSLV) extends from Wednesday, April
18 until April 25. The launch will be from the SHAR Centre, Sriharikota,
India.
The original launch attempt of GSLV was aborted one second
before the lift-off by the Automatic Launch Processing System (ALS) which
detected that one of the liquid fuel strap-on boosters did not develop the
required thrust.
Based on a detailed analysis of the data obtained
during the five seconds' operation of the four strap-on motors during the count
down sequence, examination of the records of engines, tear down analysis of the
disassembled engine and the extensive simulations carried out, it has been now
established that the reason for one of the strap-on boosters not developing the
required thrust was due to a defective plumbing in the oxidiser flow line of
the engine, which had escaped detection during testing. This resulted in
reduced flow of oxidiser to the engine.
During the launch attempt one
of the strap on boosters also caught fire. Based on review of the video
pictures and other data, it was concluded that the fire spreading over one of
the strap-on boosters was only due to the burning of foam insulation pads and
was incidental and did not cause any damage to the vehicle. It has been decided
to provide additional flame protection for these insulation pads.
Pratt & Whitney Developing New
Upper Stage Engine
Pratt & Whitney (P&W) Space Propulsion
operations have announced plans to begin development of a full-scale engine
demonstrator for a next generation high-performance liquid-hydrogen-fueled
60,000 pound-thrust-class rocket engine, designated the RL60.
The RL60's performance increase will come in a package
approximately the same size as P&W's RL10, currently the industry's
workhorse upper-stage engine for Atlas, Titan and Delta launch vehicles. The
new engine will offer throttling capability ranging from 50,000 to 65,000
pounds of thrust.
P&W has initiated the first phase of the
development program, which includes major component fabrication and
demonstration testing later this year, leading to a full-scale engine
demonstrator test planned for the end of 2002. Following a successful
demonstrator engine program, the RL60 could proceed into full-scale development
and be ready for service by the end of 2005.
The P&W-sponsored
program calls for the RL60 to be built and tested domestically with key
components to be provided by three international industry strategic suppliers;
Volvo Aero of Sweden, Ishikawajima-Harima Heavy Industries (IHI) of Japan and
Chemical Automatics Design Bureau (CADB) of Russia. Volvo Aero will provide a
regeneratively cooled nozzle, IHI will provide the main hydrogen (fuel)
turbopump, and CADB will produce the liquid oxygen (oxidiser) turbopump.
The RL60 engine is being developed to provide lift capability growth for
domestic vehicles, such as Atlas and Delta, and also international launch
vehicles.
P&W has a proven success track record with international
collaborations with the Russian built RD-180 booster engine and the RL10B-2
carbon-carbon composite nozzle produced by Snecma, in France.
Last
year, P&W pursued a teaming arrangement with Snecma to jointly develop the
SPW2000 engine for use on the Ariane 5 as well as future Delta and Atlas
vehicles. In June, the European Space Agency decided instead to pursue its own
engine program, designated Vinci.
A key component in the RL60 is
Volvo's new sandwich nozzle, a completely new, patented production technology,
which the company began developing in 1997. Volvo Aero has previously tested a
sandwich nozzle in smaller scale, but the RL60 represents the first full-scale
testing.
The patented sandwich technology involves forming a cone from
3-5 mm thick sheet metal and then milling out hundreds of cooling channels. An
outer jacket is mounted over this cone and is welded to the underlying sheet
metal using laser-welding.
The sandwich cone is then formed into its
final bell-shape. Thereafter, as needed, several cones can be welded together
to form a nozzle, which is often 1.5 to 3 meters in height and diameter.
The thin metal must withstand enormous stresses: liquid hydrogen flows
through the channels (-230 C) to cool the nozzle walls from the heat of the
combustion chamber flame at 3,300 C. The outer surface of the nozzle holds a
temperature of minus 170 C, while the inside wall is heated to plus 600
C.
Alcatel Sues Loral
Alcatel has confirmed
that it is suing Loral Space and Communications which is pulling out of their
EuropeStar joint venture.
Alcatel Spacecom hold 51% of
EuropeStar whilst Loral Space and Communications holds 49%. Alcatel itself
holds 3.4% of Loral.
EuropeStar currently operates two satellites,
EuropeStar B and EuropeStar 1, with a third satellite, EuropeStar 2, on order
and due for launch in 2002.
Although denying that other joint projects
are at risk, further doubt must now be placed on the joint Alcatel/Loral
SkyBridge project which recently decided to offer services later this year
using geostationary satellites before starting its much publicised LEO service.
The new SkyBridge will be in direct competition with Loral Cyberstar, something
Loral surely does not want.
Troubled Loral Space and Communications is
struggling to cope with financial problems after being weighed down by its
financial obligations to near bankrupt Globalstar. It is trying to refocus its
business towards selling satellites and bulk transponder capacity rather that
being user oriented.
Integral Systems Opens Colorado
Springs Office
Integral Systems Inc has opened an office in Colorado
Springs, Colorado. The new office will serve as the focal point for the support
of Integral's US Air Force business.
Peterson and
Schriever Air Force Bases are major centres of satellite command and control
activity for the US Air Force and are both located in Colorado Springs.
Contact information for the Colorado Springs facility is as follows:
Integral Systems, Inc.
One Gateway Plaza
Suite 500
1330
Iverness Drive
Colorado Springs, Colorado 80903
USA
Phone: +1
(719) 550-3430
Fax: +1 (719) 550-3431
Email: [email protected]
Security Worries May Halt SingTel's
Optus Acquisition
A
take over bid by Singapore Telecom for Australian carrier Cable and Wireless
Optus may be ruled as unacceptable because of conflicts of interest.
Privately owned Optus provides satellite communications for
the Australian security and defence agencies. It is also currently procuring
its next generation of satellites which will carry dedicated payloads for
governmental and military communications. Typical applications supported by the
new satellites include secure links to Australian embassies across the Asia
Pacific region and to Australian Navy vessels.
Concerns have been
voiced on two counts.
Firstly, Singapore is not a democracy, a fact
which rankles some members of the Australian government.
Secondly, and
perhaps more importantly, is the association between SingTel and the Singapore
military. The CEO of SingTel, Lee Hsien Yang, is a Brigadier General in the
Singapore defence forces. Some Australian commentators do not think it is
prudent to entrust critical military and governmental communications to a
foreign company with such links.
Carrier Monitor from
Transcendental
Transcendent Technologies Inc has introduced the
Monarch carrier monitoring system (CMS), which provides advanced bandwidth
management capabilities for teleports and telecommunications companies who
offer satellite services to their customers.
The Monarch
CMS offers automated, cyclic monitoring and alarming for any number of
carriers. The system will automatically cycle through all activity on
designated bandwidths and generate alarms when problems arise. Users define the
upper and lower limits on parameters of interest (centre frequency, bandwidth,
C/kT, EIRP, and Eb/No) and any out-of-bounds condition triggers an alarm and
captures the information users need to troubleshoot and correct the
problem.
Demodulator Chips From Mitel
Mitel Corporation has
announced two demodulator ICs that boost performance in satellite and
terrestrial set-top boxes (STB), integrated television sets, and PC
applications.
The MT312 for satellite applications, and
the MT351 for terrestrial receivers, provide ultra-fast auto-scan capability,
which enables systems to rapidly detect and tune digital television channels
delivered by satellite and terrestrial links. The devices also support
interactive services such as two-way television, e-commerce, video-on-demand
and digital video encoding.
The MT312 and MT351 demodulators have also
been combined with Mitel's tuners in two new reference designs that offer
complete front-end solutions. Building on Mitel's expertise in RF, tuner, and
STB integrated circuit design, the solutions speed time-to-market for equipment
manufacturers by reducing hardware and software design-in cycles. The reference
designs reduce manufacturing costs by eliminating the need for production
alignment and RF screening.
The MT312 is a single-chip variable rate
digital Quadrature Phase Shift Keying (QPSK) satellite demodulator. The device
integrates two 6-bit ADC converters and a unique controller for acquisition and
tracking modes that ensure minimal interaction, maximum flexibility, and the
fastest auto-scan capability of any chip on the market today. With the ability
to scan across the complete Astra band in under 10 seconds, the device enhances
performance by enabling channels to be quickly acquired and tuned.
The
demodulator ICs have been integrated into reference designs that provide
complete front-end solutions. The satellite network interface module (SNIM)
integrates Mitel's SL1935 satellite tuner and the new MT312 demodulator. The
module complies to the digital satellite system (DSS) specification used for
DirectTV in the United States, as well as the digital video broadcast for
satellite (DVB-S) standard deployed in Europe and around the world.
The SL1935 is available to order, supplied in a 36-pin SSOP with tape and reel
option, for under US$ 2.20 in 100K volumes. Packaged in an 80-pin MQFP, the
MT312 is sampling now, and will be available for US$ 3.90 in 100K
volumes.
Loral CyberStar Launches Enhanced
Video-To-The-Desktop Services
Loral CyberStar, a global provider of data, video,
content, and Internet services, has introduced ClearStream Live to the
ClearStream product line, an IP-based suite of products that enables
high-quality, full-screen distribution and delivery of bandwidth-intensive
applications and video through existing intranets to desktop PCs.
ClearStream gives enterprises a simple and cost-effective
way to implement global video-to-the-desktop solutions for live, scheduled, and
on-demand e-learning and corporate communications applications by taking
advantage of CyberStar's global IP multicast network. Using this
satellite-based network allows enterprises to bypass the Internet and avoid
wide area network (WAN) congestion to deliver broadband applications to
multiple, geographically dispersed sites without the congestion and delays
usually associated with Web-based video streaming.
Using open
standards digital video broadcast (DVB) technology, a standard Web browser, and
the Windows Media Player, ClearStream Live delivers high-quality video and
CD-quality audio communications live to the desktop or conference room monitor.
By multicasting 300 kb/s video streams onto the LAN, ClearStream Live offers a
bandwidth-efficient method of viewing live video and enables enterprises to
reliably deliver high-impact, time-sensitive live communications to multiple
sites without fear of unpredictable video performance due to Internet
congestion or LAN.
TRW's CFO to Retire
TRW Inc has announced
that Carl G Miller, executive vice president and chief financial officer, has
elected to retire from the company.
His retirement will
be effective upon completion of an internal and external search for his
replacement. In the interim, Miller will be fully engaged in managing TRW's
finance function, the company said.
Miller, 58, has served in his
current capacity since February 1996. He joined TRW in 1990 as vice president
and controller.