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Friday, October 05, 2007
UN/ITU/UNOOSA/WORLD BANK + SWANSAT?
The United Nation's Office Outer Space Resolution of Dec 2005:
http://www.unoosa.org/pdf/gares/ARES_60_099E.pdf
31. Reiterates that the benefits of space technology and its applications should be prominently brought to the attention, in particular, of the major United Nations conferences and summits for economic, social and cultural development and related fields and that the use of space technology should be promoted towards achieving the objectives of those conferences and summits and for implementing the United Nations Millennium Declaration.
My comment: Do you believe that the UN/ITU/UNOOSA/WORLDBANK etc etc will prominently bring SWANsat to the attention of the WORLD?
I will hold my breath!
Posted at 05:12 pm by wmt_
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Sunday, June 24, 2007
Roger X. Lenard - impressive bio.
Roger X. Lenard 16 Dunkin Road Edgewood, NM 87015
Roger X. Lenard is currently Program Manager, Space Nuclear Systems, Principal Member of the Technical Staff, Sandia National Laboratories. His areas of expertise include: advanced space propulsion technologies and systems/space exploration-policy; commercial space transportation: single and two-stage to orbit systems analysis; nuclear and space nuclear systems safety and environmental analysis and design; strategic defense/ballistic missile defense technologies and systems-policy; space based radar systems; pulse micro-fission neutronics and safety analyses; and weapons effects testing safety and environmental analyses.
Lenard is a retired U.S. Air Force officer, has served on numerous NASA, USAF, and Department of Defense aerospace programs. He has been a featured speaker in technical meetings arranged by professional groups in both the U.S. and U.K., principally on space propulsion and hypersonic flight, and has chaired a number of conferences and symposia. He has authored more than 30 technical papers.
He received his bachelor's degree in physics from Portland State University, Portland, Oregon, 1971 and subsequently attended the Air Command and Staff College, Air University, receiving his master's degree in Chemical Physics from the University of Puget Sound, Tacoma, Washington, in 1981. He is a member of the Society for Automotive Engineers and the American Institute of Aeronautics and Astronautics.
Posted at 06:23 pm by wmt_
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SWANsat OPEN SKIES Policy for Africa, the World.
Every square inch of Africa is covered by satellite bandwidth, but restrictive telecom policies stop this from supporting Africa's development. There are 48 satellites with coverage, pointing 36 Ku-band frequency beams and 28 C-band beams over Africa which can be accessed to provide international and national voice calls, broadcasting, data and Internet services.
Africa's vast inaccessible terrain and insufficient energy infrastructure makes it difficult and costly to roll out wire-line networks and fibre optic links in heartland areas. Low-cost satellite-based Internet therefore responds to the access crisis in the region, and provides a potentially affordable opportunity for connectivity. Until recently PTO's have been the main users of satellite technologies, but some liberalisation is slowly opening up avenues for new licensed service providers to compete for broadcasting, data and lastly voice traffic (see VSAT Licensing Status map). But even where private or public satellite services are allowed, hefty license fees are levied; or are only allowed for monopoly or duopoly operators. It is clear that policies for low cost 'consumer grade' satellite internet access have not yet been developed in many nations.
To overcome the restrictions on access to bandwidth there needs to be an 'Open Skies' policy in order to achieve Africa development goals. Then the conditions for economies of scale will result in lower prices and affordable subscriptions to community access points, SME's, governments and households.
http://www.gvf.org/database/regulatoryDB/africaskiesindex.cfm http://swansat.com/docs/general/shareware_&_summary_&_pyramid.pdf
Posted at 06:16 pm by wmt_
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Wednesday, June 20, 2007
SWANsat 4 steps in the right direction.
The key developmental issues include: communications payload & the power payload & the frequency & the funding. (Handset not covered in this article)
As you know, the larger the antenna the better amplification/resolution. Most mobile GEO sats (Thuraya) have something like a 14 meter antenna. Imagine a 14km antenna? It would be the equivalent of a super bionic ear hearing data whisper from a mobile device. Think of the inverse, 14 meter "earth-to-space" dishes are powerful enough to look for signals in outer-space. The communications payload, based on Dr. Jim Stuart's recent powerpoint presentation, could allude to new advanced technology called "thin-sat" – transceivers/spot-beams that cover the entire surface of the antennae. They have also noted that the design includes onboard switching & routing – bypassing terrestrial networks, if necessary. (I can't find any patents regarding the communications payload – maybe they are pending?)
BTW, if 14km is true, it is an order of magnitude we have never ever seen.
Nuclear Power. It's the only way to carry w-band information 22,300 miles effectively. Thurya uses 14,000 watts of solar power and at a lower frequency. Imagine what 500,000 watts can do? New legislation has approved a commercial company (IOSTAR) to build a nuclear power plant in space, in conjunction with SANDIA Labs & all the energy & nuclear oversight committees you can think of – including White House Presidential launch approval! IOSTAR's stated primary use is to be a "space-tug boat", moving space assets around, but other uses can include power requirements communication satellites that IOSTAR are designing. (Commercial Reusable In-Space Transportation Act of 2002. A Redacted Portion of The Department of Defense Appropriations Act of 2003".)
International Astronautical Congress. Oct 2-6, 2006, Page 24 (c4.8/d2.8) – Session Chairman: Sandia Lab's chief Roger Lenard. He will lead the session entitled: "New missions enabled by Nuclear Propulsion".
http://home.iitk.ac.in/~ramesh/IAF2006/IAF-Valence2006.pdf (2.3megs) Conference brochure.
http://www.freshpatents.com/In-orbit-space-transportation---x26--recovery-system-dt20050714ptan20050151022.php (original patent)
http://www.patentstorm.us/patents/7070151.html Lenard assigns the patent to IOSTAR, July 4, 2006.
2 factors in play here. (a) Usable spectrum. The W-Band, is known as Extremely High Frequency (EHF). http://en.wikipedia.org/wiki/Extremely_high_frequency. Although police radar use this spectrum on the horizontal plane & astronomers use it for outer space, to use it on the vertical plane, earth-space & space-earth communications is in the realm of military establishments – one of IOSTAR's directors is 4-star General Tony McPeak, its Chairman build GPS, its president was the founder engineer of Orbital, SWANsat's contractor. Orbital Sciences has Roach, the recently retired AF Secretary. www.orbital.com; Military projects using EHF: Milstar, AEHT, TSAT: www.globalsecurity.org/space/systems/aehf.htm and also www.globalsecurity.org/space/systems/tsat.htm.
(b) Licence to use that spectrum. Getting a licence is expensive. In last years' Senate hearing, Motorola said that 60 megahertz would provide the FCC $10-30B of fees & $233B-$473B of economic activity. Imagine the worldwide economic activity that might be generated with a non-profit communication system that has an exclusive licence to use 10,000 megahertz? SWANsat owns the licence to operate 71Ghz-86Ghz through the host nation of Nauru, who, as a member of the UN, has a right to orbital slots (first in best dressed). Think of the huge hurdles every competitor has? SWANsat/IOSTAR has a near world-wide monopoly. SWANsat/IOSTAR claims a rough estimate of 600 million broadband internet connections & 250,000 TV channels PER SATELLITE.
Unprecedented.
$10B! $2B over 5 years is an upfront, high intense capital investment. No banker/venture capitalist would touch this type of project on one hand, but 10 million connections @ $100 per month is $1B per month revenue on the other is pretty attractive. 600 million connections makes the investment per potential connection very very low (less than $6! per person!) … something that the International community that is concerned with the Digital Divide, Bottom of Pyramid, UN & World Bank – or even a Billionaire or two maybe interested in. Bill Gates invested into Teledesic – (Chief Engineer of Teledesic is Dr Jim Stuart). It failed, because of high cost of landing rights (Iridium per minute charges is still crippled by this) and the low spectrum that was actually licensed. Through William Welty & SWANsat, Jim Stuart has fixed those two errors: the SWANsat Shareware Telecommunications Model & its huge licensed spectrum capacity allows SWANsat to offer a next generation digital TV platform to every country in the world for free, as long as SWANsat can operate in their country, for free. http://swansat.com/docs/general/shareware_&_summary_&_pyramid.pdf
NASA tells kids what is so special about such a communication satellite:
"A geosynchronous satellite must orbit at 22,300 miles altitude and it must be over the earth's equator. As a result, there are a limited number of "slots" for satellites. The allocation of these slots is carefully regulated by an international governing body. Needless to say, both processes are highly political inasmuch as (1) there are billions of dollars to be made, and (2) few things are more prestigious for a small, newly independent country than to be able to say, "We have our own satellite." To date (and for the foreseeable future) satellite communications is the biggest and virtually only money-making business in space." http://ctd.grc.nasa.gov/rleonard/regs1ii.html
Posted at 10:26 pm by wmt_
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Tuesday, June 19, 2007
AEHF is a high priority for the military.
FY 2007
Unfunded Priority List (UPL)
Feb 2006 Budget and Appropriations Liaison Office
page 7:
PRIORITY:
Command and Control System – Consolidated (CCS - C)
Funds system integration/test of new Wideband Gapfiller Satellite and Advanced Extremely High Frequency (AEHF) satellites into CCS-C. CCS-C integration must begin a minimum of 18 months in advance of AEHF-1 launch.
page 122
8. If an R&D item, how much has been invested in this program to date? What is the testing status and next milestone?
To date, $100.1M has been invested. DSCS and Milstar satellites have been fully integrated and are operational. WGS #1 is in development with a test completion schedule of May 07. AEHF #1 is in development with test completion date of Feb 08.
9. Does a "validated" written requirement already exist for this item? If so, please provide a brief one-paragraph summary of the requirement. Also, provide a brief one-paragraph description of how the mission is accomplished today and the expected warfighting improvements or cost savings through acquisition of the new system.
Documented communication requirements are in Joint Requirements Oversight Council approved AEHF and WGS requirements documents. The satellite platform C2 is required to launch AEHF, and operate both AEHF and WGS. Both systems provide 10-100 times more communication capability to the warfighter than legacy DSCS and Milstar systems.
10. If Congress were to provide additional funds for this item in FY 2007, what savings (in then year dollars) could be expected by starting (increasing) the project in FY 2007 rather than under your current plan? How much are acquisition savings? How much are expected operational savings once fielded? How much are inflation savings? Please list any other savings and a best estimate of what the revised FYDP funding/quantity profile would be if the proposal were implemented.
If Congress funds this FY 2007 request, the program will avoid a slip of the AEHF #1 launch at a minimum cost of $1M per day, and avoids a $1M per month Boeing contract for WGS operations.
11. Do you assess that the line item has no/low, some/medium, or high military value?
High
Posted at 10:55 pm by wmt_
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Monday, June 18, 2007
COMMERCIAL REUSABLE IN-SPACE TRANSPORTATION ACT of 2002
COMMERCIAL REUSABLE IN-SPACE TRANSPORTATION
SEC. 901. SHORT TITLE.
This title may be cited as the `Commercial Reusable In-Space Transportation Act of 2002'.
SEC. 902. FINDINGS.
Congress makes the following findings:
(1) It is in the national interest to encourage the production of cost-effective, in-space transportation systems, which would be built and operated by the private sector on a commercial basis.
(2) The use of reusable in-space transportation systems will enhance performance levels of in-space operations, enhance efficient and safe disposal of satellites at the end of their useful lives, and increase the capability and reliability of existing ground-to-space launch vehicles.
(3) Commercial reusable in-space transportation systems will enhance the economic well-being and national security of the United States by reducing space operations costs for commercial and national space programs and by adding new space capabilities to space operations.
(4) Commercial reusable in-space transportation systems will provide new cost-effective space capabilities (including orbital transfers from low altitude orbits to high altitude orbits and return, the correction of erroneous satellite orbits, and the recovery, refurbishment, and refueling of satellites) and the provision of upper stage functions to increase ground-to-orbit launch vehicle payloads to geostationary and other high energy orbits.
(5) Commercial reusable in-space transportation systems can enhance and enable the space exploration of the United States by providing lower cost trajectory injection from earth orbit, transit trajectory control, and planet arrival deceleration to support potential National Aeronautics and Space Administration missions to Mars, Pluto, and other planets.
(6) Satellites stranded in erroneous earth orbit due to deficiencies in their launch represent substantial economic loss to the United States and present substantial concerns for the current backlog of national space assets.
(7) Commercial reusable in-space transportation systems can provide new options for alternative planning approaches and risk management to enhance the mission assurance of national space assets.
(8) Commercial reusable in-space transportation systems developed by the private sector can provide in-space transportation services to the National Aeronautics and Space Administration, the Department of Defense, the National Reconnaissance Office, and other agencies without the need for the United States to bear the cost of production of such systems.
(9) The availability of loan guarantees, with the cost of credit risk to the United States paid by the private-sector, is an effective means by which the United States can help qualifying private-sector companies secure otherwise unattainable private financing for the production of commercial reusable in-space transportation systems, while at the same time minimizing Government commitment and involvement in the development of such systems.
SEC. 903. LOAN GUARANTEES FOR PRODUCTION OF COMMERCIAL REUSABLE IN-SPACE TRANSPORTATION.
(a) AUTHORITY TO MAKE LOAN GUARANTEES- The Secretary may guarantee loans made to eligible United States commercial providers for purposes of producing commercial reusable in-space transportation services or systems.
(b) ELIGIBLE UNITED STATES COMMERCIAL PROVIDERS- The Secretary shall prescribe requirements for the eligibility of United States commercial providers for loan guarantees under this section. Such requirements shall ensure that eligible providers are financially capable of undertaking a loan guaranteed under this section.
(c) LIMITATION ON LOANS GUARANTEED- The Secretary may not guarantee a loan for a United States commercial provider under this section unless the Secretary determines that credit would not otherwise be reasonably available at the time of the guarantee for the commercial reusable in-space transportation service or system to be produced utilizing the proceeds of the loan.
(1) COLLECTION REQUIRED- The Secretary shall collect from each United States commercial provider receiving a loan guarantee under this section an amount equal to the amount, as determined by the Secretary, to cover the cost, as defined in section 502(5) of the Federal Credit Reform Act of 1990, of the loan guarantee.
(2) PERIODIC DISBURSEMENTS- In the case of a loan guarantee in which proceeds of the loan are disbursed over time, the Secretary shall collect the amount required under this subsection on a pro rata basis, as determined by the Secretary, at the time of each disbursement.
(e) OTHER TERMS AND CONDITIONS-
(1) PROHIBITION ON SUBORDINATION- A loan guaranteed under this section may not be subordinated to another debt contracted by the United States commercial provider concerned, or to any other claims against such provider.
(2) RESTRICTION ON INCOME- A loan guaranteed under this section may not--
(A) provide income which is excluded from gross income for purposes of chapter 1 of the Internal Revenue Code of 1986; or
(B) provide significant collateral or security, as determined by the Secretary, for other obligations the income from which is so excluded.
(3) TREATMENT OF GUARANTEE- The guarantee of a loan under this section shall be conclusive evidence of the following:
(A) That the guarantee has been properly obtained.
(B) That the loan qualifies for the guarantee.
(C) That, but for fraud or material misrepresentation by the holder of the loan, the guarantee is valid, legal, and enforceable.
(4) OTHER TERMS AND CONDITIONS- The Secretary may establish any other terms and conditions for a guarantee of a loan under this section, as the Secretary considers appropriate to protect the financial interests of the United States.
(f) ENFORCEMENT OF RIGHTS-
(1) IN GENERAL- The Attorney General may take any action the Attorney General considers appropriate to enforce any right accruing to the United States under a loan guarantee under this section.
(2) FORBEARANCE- The Attorney General may, with the approval of the parties concerned, forebear from enforcing any right of the United States under a loan guaranteed under this section for the benefit of a United States commercial provider if such forbearance will not result in any cost, as defined in section 502(5) of the Federal Credit Reform Act of 1990, to the United States.
(3) UTILIZATION OF PROPERTY- Notwithstanding any other provision of law and subject to the terms of a loan guaranteed under this section, upon the default of a United States commercial provider under the loan, the Secretary may, at the election of the Secretary--
(A) assume control of the physical asset financed by the loan; and
(B) complete, recondition, reconstruct, renovate, repair, maintain, operate, or sell the physical asset.
(1) AUTHORITY TO ISSUE INSTRUMENTS- Notwithstanding any other provision of law, the Secretary may, subject to such terms and conditions as the Secretary considers appropriate, issue credit instruments to United States commercial providers of in-space transportation services or system, with the aggregate cost (as determined under the provisions of the Federal Credit Reform Act of 1990 (2 U.S.C. 661 et seq.)) of such instruments not to exceed $1,500,000,000, but only to the extent that new budget authority to cover such costs is provided in subsequent appropriations Acts or authority is otherwise provided in subsequent appropriations Acts.
(2) CREDIT SUBSIDY- The Secretary shall provide a credit subsidy for any credit instrument issued under this subsection in accordance with the provisions of the Federal Credit Reform Act of 1990.
(3) CONSTRUCTION- The eligibility of a United States commercial provider of in-space transportation services or systems for a credit instrument under this subsection is in addition to any eligibility of such provider for a loan guarantee under other provisions of this section.
Posted at 08:51 pm by wmt_
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Sunday, June 17, 2007
SWANsat $10 billion - not TSAT $18 billion price tag.
June 2004
Expanding Communications
'Transformational' Satellite Price Tag Could Reach $18B
by Michael Peck
Faced with a bandwidth crunch prompted in part by multiplying flocks of unmanned aerial vehicles that are transmitting multi-megabyte pictures, Defense Department planners are counting on a new generation of communications satellites to expand capacity.
A constellation of six transformational satellite or TSAT spacecraft, comprising five satellites and one in-orbit spare, currently are slated for launch around 2011, according to Christine Anderson, systems program director for the MILSATCOM joint project office in Los Angeles.
Lockheed Martin and Boeing won $472 million in risk reduction contracts. In 2006, the Air Force will select a single prime contractor to build the satellites. For the ground-based segment of the system, $3 million research contracts were awarded to Lockheed Martin, Raytheon and Northrop Grumman. This contact will be awarded in 2005.
If the laser-equipped TSATs are launched, they will combine the best features of the menagerie of radio frequency (RF) communications satellites in orbit or scheduled for launch.
Communications satellites come in three flavors: narrowband systems that are useful for voice transmissions but lack sufficient capacity for large data streams, wideband systems for sending large amounts of data, and protected satellites that are hardened against jamming and nuclear effects. By way of comparison, the current ultra high frequency follow on (UFO) narrowband satellites transmit at a rate of two to five megabits a second.
UFO's successor, MUOS (mobile user objective system), scheduled for launch in 2009, transmits at 40 megabits a second. TSAT will have 25 to 45 megabytes-per-second RF links to users on the ground, plus 20-gigabyte laser communications connecting the satellites to each other. Thus, they will combine the bandwidth of wideband systems such as the Wideband Gapfiller satellite, with the protected links of spacecraft, such as the advanced extremely high frequency (AEHF) satellites.
A 24-megabyte visual image transmitted by a reconnaissance aircraft, for example, would require two minutes to be transmitted to a current Milstar 2 satellite. A TSAT would cut transmission time to less than one second.
Particularly cutting-edge are the laser optics that will connect the geosynchronous TSAT satellites into an integrated network. If a signal is transmitted to a TSAT that is not within line-of-sight of the recipient, it forwards the message through a laser connection to another TSAT that has line of sight.
Many current satellites are not interconnected, which means that if a satellite is not within line of sight of the destination, it must send the message back to a teleport on the ground to be relayed to another satellite in the constellation. While the AEHF constellation will be interconnected, it only uses slower RF links rather than lasers.
"Transformation communications is different than other satellites we've built in the past," Anderson said. "Think of it as laying fiber in space. What we're doing is laying fiber via the crosslinks between the satellites. And this provides a tremendous amount of connectivity we've never had before. Instead of going with a circuit to circuit system like we've done in the past with MUOS and Milstar, we're now going to an Internet protocol-based system that has all sorts of wonderful benefits to the user, such as communications while on the move. We can deliver T-1 class [1.5 megabits per second] communications to a vehicle."
This high-speed capability has limitations. For one, TSAT requires users on the ground to have dish antennas, which rules out foot soldiers, though not vehicles as small as a Humvee. Anderson said studies are underway to examine the feasibility of the new joint tactical radio system to communicate with TSAT.
Another problem is that TSAT's high-powered lasers suffer from weather, forcing it to use RF communications with the ground while reserving its lasers for receivers in space and in high-flying aircraft. "Laser communications has the advantage of extremely high bandwidth, orders of magnitude higher than RF," said Anderson. "But it cannot penetrate through cloud cover. You basically use it for cross-connecting in space, and also to link manned and unmanned aircraft."
Most damaging is a General Accounting Office report published last December that recommended that TSAT be delayed until its critical technologies, such as laser optics, high-speed router and security algorithms, are more mature. Most of these technologies are at technology readiness level (TRL) 3 or 4, according to GAO.
"When a technology is classified as a TRL 3, it means most of the work performed so far has been based on analytical studies and a few laboratory tests may have been conducted," the study said. GAO also pointed to a lack of backup technologies for critical systems such as laser communications.
Anderson, however, countered that GAO had based its report on a previous launch date of 2009 rather than the current 2012 time frame, and that the TSAT technologies have further matured. Joe Davidson, spokesman for the Air Force's Space and Missile Systems Command, said the risk reduction contracts awarded in January are intended to bring TSAT technologies to a mature TRL 6 level.
"Current experiments have already demonstrated the successful use of laser communications in space," Davidson said. Should the laser optics not work as advertised, TSAT satellites could be limited to transmitting at lower data rates, or designed with shorter life spans using more traditional technologies. For example, if TSAT's dynamic bandwidth resource allocation system, which boosts transmission power as needed, isn't mature in time, then the satellites could use fixed power allocation, according to Davidson.
By next November, the Defense Department must decide whether to go ahead with TSAT, or instead add two more AEHF satellites to the three AEHF craft slated for launch beginning in 2007.
TSAT's fiscal year 2004 budget has been cut by $100 million, which caused a nine-month delay.
The estimated system cost for TSAT through 2016 is $18 billion, which includes the satellite, the ground operations system, the satellite operations center and the cost of operations and maintenance.
TSAT proponents say that transforming satellite communications is key to military transformation. "TSAT is part of the vision to enable the overall packet-based transformations being instituted by the office of the secretary of defense and the services' next generation concepts," said Davidson. "You're not just providing users with a phone line, like the telephone company," Anderson said. "You're connecting them to the global information grid. If someone is moving through the desert, and they want to search all intelligence imagery of the area, they can do that."
Rear Adm. Rand Fisher, director of naval space technology programs and head of the Transformational Communications Office within NRO, oversees the transformational communications architecture (TCA), an ambitious effort to link three families of next-generation communications satellites.
The TSAT program is critical to this architecture, he said. While the Defense Department manages the TSAT, the intelligence community is working on the optical relay communications architecture. NASA manages the tracking and data relay satellite system (TDRSS-C).
"TCA introduces optical communications, which is far higher bandwidth than radio frequency communications," Fisher said. "It will also introduce 'packetized' information transport in an Internet protocol environment."
"Imagine yourself with just a phone with just audio information," Fisher said. "Now contrast that with voice and video data in a collaborative environment where you are sharing real-time information around the world and across defense, intelligence community and NASA boundaries.
"We know we have gotten information to commanders too late," said Fisher. "We find there was a lot of information available that we couldn't get to the right people at the right time. I hesitate to use the word 'crisis,' but I know at least some of our war fighters have at times thought of it as a crisis."
Fisher termed the GAO report "very pessimistic," adding that there is always risk inherent in new technologies, but sticking to only mature technologies will stifle innovation.
Fisher said there are two problems that concern him. First is the question of if and when TSAT will be deployed, especially in light of the GAO report. By next December, the Defense Department must decide whether to proceed with TSAT, or substitute additional advanced extremely high frequency system (AEHF) satellites.
Successors to the current Milstar system, three AEHF spacecraft are scheduled to be launched around 2007. But two more could be launched in place of TSAT. While AEHF has just one-twentieth the bandwidth capacity of TSAT, it has the advantage of using proven radio frequency communications rather than cutting-edge laser communications.
"If you believe that there is inherently too much risk in the program to not build an AEHF, then the question becomes, 'do I take that money for the AEHF out of the TSAT side?'" Fisher asked.
"If we end up taking money from the TSAT line, we end up delaying TSAT, and then because we end up delaying TSAT, then we need to launch another AEHF. If you keep taking money from the TSAT program, I'm not sure how you get anywhere. Every time you build an old satellite, you propagate the old architecture. That's the dilemma that we have."
Complicating the picture even further is the fact TCA functions at its best as an integrated triad. Though the military, intelligence, and NASA satellite constellations operate independently, they are designed to be compatible. Because each of the three communities is responsible for securing the funding for its own satellites, Fisher is concerned that the three programs won't be funded synchronously.
"It's both a community and a congressional issue," he added. "We are a large team in that regard. And when you have a large team, you can expect some natural stress or conflict and that all the team members don't gauge the priorities in precisely the same fashion."
Fisher, nonetheless, contends that launching the TSAT around 2011 is key. "Everyone we've chatted with, including people on Capitol Hill, really sees the need for the capability that the TCA brings. All of the services are making plans that are dependent on those capabilities. The desired position we would like to be in is to have enough confidence in the TSAT Version One that we would not have to buy AEHF 4 or 5."
http://www.nationaldefensemagazine.org/issues/2004/Jun/Expanding_Comm.htm
Posted at 07:38 pm by wmt_
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using Nuclear Power, The USA's Transformational Communications Satellite System (TSAT)
SWANsat is not alone - it is up there with the military programs. Which makes sense, when when the builders & engineers of SWANsat have military backgrounds. The difference? SWANsat is NON-PROFIT! SWANsat is designed to use Nuclear Power. SWANsat has 10Ghz of spectrum ALREADY licenced to them.
Special Report: The USA's Transformational Communications Satellite System (TSAT)
Posted 19-Jul-2005 12:29
As video communications is integrated into robots, soldiers, and UAVs, and network-centric warfare becomes the organizing principle of American warfighting, front-line demands for bandwidth are rising sharply. The Transformation Communications Satellite (TSAT) System is part of a larger effort by the US military to address this need.
The final price tag on the entire TSAT program is expected to reach $14-18 billion through 2016, which includes the satellites, the ground operations system, the satellite operations center and the cost of operations and maintenance. By mid-2007, the U.S. Air Force will either decide to build the TSAT system on its current schedule and launch in 2013-2016, or postpone TSAT, take stopgap measures and add Advanced Extremely High Frequency (AEHF) satellites 4 & 5 to the three slated for launch from 2009-2012.
Lockheed Martin and Boeing have won a total of $514 million each in risk reduction contracts for the TSAT SS satellite system, in hopes of making that Plan B unnecessary. Meanwhile, TSAT's $2 billion TMOS ground-based network operations contract has just been awarded.
TSAT has seen a recent resurgence of news coverage, and its central role in next-generation US military infrastructure makes it worthy of in-depth treatment. Yet its survival is not assured by any means. Outside events and incremental competitors could spell its end just as they spelled the end of Motorola's infamous Iridium service. This updated DID Special Report looks at the TSAT program, its challenges, and the potential future(s) of U.S. military communications.
§ Key Background - Why TSAT Is Thought to be Necessary (i.e. continue reading...)
§ Key Background - The Big Picture: TSAT and the Transformational Communications Architecture
§ Briefing - What Is TSAT?
§ Briefing - TMOS: TSAT's Ground Component
§ Briefing - The AEHF Alternative, and Lessons Learned for TSAT
§ Analysis - TSAT Program: Issues & Decisions
§ Analysis - Conclusion: TSAT's Competitors - and Its Fate
§ Appendix A - TSAT: Timeline and Recent Developments
§ Appendix B - Additional Readings & Sources
Posted at 07:33 pm by wmt_
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Northrop Grumman Confirms Advanced EHF Compatibility With Milstar Terminals in U.S. Army, Air Force Tests
Here's one specific project in the W-Band area, comapatible/competing with SWANsat for frequency allocations.
Northrop Grumman Confirms Advanced EHF Compatibility With Milstar Terminals in U.S. Army, Air Force Tests
REDONDO BEACH, Calif., Sept. 5, 2006 –
Nearly two months of rigorous tests conducted by Northrop Grumman Corporation (NYSE:NOC) showed that Milstar terminals operated by the U.S. Army and Air Force can send and receive data through the next-generation Advanced Extremely High Frequency Satellite (EHF) military satellite communications system. The company is providing the Advanced EHF payloads to Lockheed Martin, the prime contractor for the Advanced EHF system.
The Advanced EHF communication system will provide global, highly secure, protected, survivable communications for warfighters serving under the U.S. Department of Defense. The Lockheed Martin-led team is currently under contract to provide three Advanced EHF satellites and the mission control system.
"The ability of Advanced EHF to operate with Milstar terminals reduces cost to the U.S Department of Defense and facilitates the military's integration of the Milstar and Advanced EHF systems," said Alexis Livanos, president of Northrop Grumman Space Technology. "With this successful payload-to-terminal verification, the Advanced EHF payload is on track to support our military services and allies with faster, flexible, protected communications worldwide."
Testing involved the Army's Secure Mobile Anti-jam Reliable Tactical Terminal (SMART-T) and Single Channel Anti-jam Man-Portable (SCAMP) terminals operating at Milstar low- and medium-data rates, along with the Air Force's Command Post and Lincoln Laboratory's Advanced EHF Universal System Test Terminals (AUST-T). Tests are planned for U.S. Navy terminals in the near future.
The results contained in this submission were generated in whole, or in part, through work supporting the MILSATCOM Systems Wing. The MILSATCOM Joint Program Office, located at the Air Force Space and Missile Systems Center, Los Angeles Air Force Base, Calif., is the contract manager and lead agency for the Advanced EHF program.
http://www.irconnect.com/noc/press/pages/news_releases.html?d=104702
Posted at 07:31 pm by wmt_
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SWANsat's technology in the EHF is not a lone player.
Simply put, SWANsat is one of many players who aim to use the higher frequencies: AEHF and TSAT and SWANsat.
Unlike DSCS, which operated in the SHF range (superhigh frequency: 3,000-30,000 megaherz), Milstar operated in the EHF range (extremely high frequency: 30,000-300,000 megaherz). EHF had rarely been used for military communications before Milstar. This frequency range provided natural resistance to jamming. EHF also allowed users to employ smaller, highly mobile terminals.
In view of the limited future of the Milstar system, SMC also began the acquisition of a follow-on EHF42 military communications system, known ultimately as the Advanced EHF system or AEHF. The system would be compatible with Milstar elements and would incorporate them throughout their useful lifetimes. Like Milstar, but greatly enhanced, the AEHF system would feature on-board signal processing and satellite crosslinks to eliminate reliance on ground stations for routing data. Data uplinks to the satellites and crosslinks between satellites would operate at EHF, and downlinks would operate at SHF. Whereas Milstar offered low and medium data rate payloads, AEHF satellites would have high data rate payloads as well, providing up to 8.2 million bits of data per second. All services would use AEHF terminals, which would be located on a wide variety of platforms on land, sea, and air. By 2003, plans called for Delta IV and Atlas V launch vehicles to begin launching an operational constellation of three AEHF satellites into inclined geosynchronous orbits in 2006. SMC awarded two competitive contracts for system definition of AEHF on 23 August 1999.43 On 16 November 2001, it awarded a contract to the team of Lockheed Martin and TRW for a System Development and Demonstration phase of the AEHF system, including production of the first two satellites and the Mission Control Segment.
Posted at 07:27 pm by wmt_
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Super-Wide Area Network Satellite (SWANsat) is a Satellite Constellation of at least 3 Geosynchronous Orbiting high powered satellites. It is planned to launch around 2011. Effectively, it will be a global Internet Service Provider. It claims an increase in potential worldwide wireless broadband internet capacity of around 600 million connections per satellite. It states that the end user will only need a handheld Mobile_device to connect to the system.
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Rajeev Choudhury
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