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Robin Wrinn This month, we bring you a guest column on the 34th Space Symposium in Colorado Springs, Colorado. Robin Wrinn, a communications professional based in Atlanta, gives her perspective on the premier annual space event, held in April. Among her findings: information on the mission longevity vs. technology innovation debate, GPS IIIF program bids, discussions of time and space, and more. — Alan Cameron, editor During recent interviews with Lockheed Martin and Harris Corporation conducted during the 34th Space Symposium (April 16-19) in Colorado Springs, time and space were a frequent focus of discussion, but not in the normal “continuum” kind of way. Greater mission longevity is one of the key improvements GPS III delivers over those currently in service. Space Vehicles 1-10 have a planned mission life of about 15 years – 25 percent longer than their satellite predecessors. Yet that bragging right begs the question “How long should a satellite ‘live’ up in space with technology innovation occurring almost annually?” After all the last Block IIR-M series satellite was launched in 2009. To put that into perspective, that same year the Canadian company Blackberry (RIM) held 20 percent of the smartphone OS market share and was the second largest OS in the world. Apple had just introduced the iPhone two years earlier. A partial answer to that question it seems is advanced payload technology. Both Lockheed Martin and Harris Corporation highlighted their advances in payload capabilities that would enable built-in flexibility to adapt satellites in orbit to advances in technology, as well as changes in missions. Lockheed Martin provided the media a tour of their RF (Radio Frequency) Payload Center of Excellence (Payload Center). Meanwhile, Harris Corporation recently announced that is has completed development of the company’s fully digital Mission Data Unit (MDU), which is core to the navigation payload for GPS III 11 +.) As a reminder, the current Harris payload for SVs 1-10 includes: Greater than three times reduction in range error, Up to eight times increase in anti-jamming power, Added signals – including one (L1C civil signal) compatible with other Global Navigation Satellite Systems (GNSS), like the European Space Agency’s Galileo. And greater signal integrity. According to Harris, the new, fully digital navigation payload it has engineered will deliver more powerful signals, PLUS the ability to change and upgrade the satellites incrementally over the mission life. Meanwhile, Lockheed recently announced a partnership with NEC to introduce artificial intelligence for computer learning in orbit. And the company’s Payload Center subject matter experts touted their significant advances in processers and a move toward the next generation of antennas, arrays and transmitters that would drive more flexibility and capability and resilience into satellites. Observation: It seems the market pressures of ‘new space’ players is prompting delivery of products that can drive more value for less cost. In this case, delivery of a common payload architecture and electronically steered beams to make satellite antennas become any shape you want. Most likely, beams of a different size on demand is a much better business case than a static one built five years ago. GPS III 1-10 on track. in full production. GPSIII SV1 awaiting U.S. Air Force “Call Up” for Launch Lockheed Martin’s GPS III SV03 became fully integrated in August 2017. Photo: Lockheed Martin The day I interviewed Lockheed Martin’s Navigation Systems mission area Program Manager Johnathon Caldwell, the company had submitted its proposal for the U.S. Air Force’s GPS III Follow On (GPS IIIF) program. That same day, April 16, the media was given a tour of Lockheed Martin’s GPS III satellite assembly floor. It was clear from both Lockheed’s press materials and Caldwell that Lockheed Martin believes it is fully recovered from prior production hiccups and is • “on track” to deliver GPS Space Vehicles (SVs) 1 through 10, and • deserves to win the bid for GPS IIIF. Now that Boeing has dropped out of the running, it seems they probably have it. (The government has said it will announce the award in March 2019.) Here is the GPS III SVs 1-10 Update: SV 01. Declared “Available for Launch” (AFL) by the Air Force on Sept. 28, 2017. Awaiting “Call Up” for launch. A formal date has not been set. “Sometime this year” was the answer Lockheed Martin provided when asked a timeframe. SV 02. Completed Thermal Vacuum (TVAC) testing, Dec. 2017. Currently in final environmental EMI (electromagnetic)/EMC (electromagnetic compatibility)/PIM (passive intermodulation) testing. AFL expected Summer 2018. SV 03. Fully integrated, Fall 2017. Currently in TVAC testing, AFL expected. Spring 2019 SV 04. Fully integrated, Spring 2018. Beginning environmental testing, Summer 2018 SVs 05, 06, & 07: 05: Navigation payload recently delivered/integrated 06: Currently in system module build up 07: Beginning build up – Spring 2018 Interview with Harris Corporation’s Jason Hendrix, PNT Program Director. GPS World readers are familiar with the differences in the GPS III signals as compared to those transmitted by satellites to date. What are the differences in the GPS III satellite payloads that were instituted to enable those new signals? The main difference is the power. The Air Force’s requirements called for significantly more anti-jamming capability. All the transmitters are a higher power. What was the most significant obstacle (or top obstacles, plural) in designing and manufacturing this new payload, to new Air Force specifications? How did you overcome it/them? Same answer really, the higher power. Keeping in mind, we went from a 7-year mission life requirement to a 15 year. That higher power puts more strain on components and new cyber requirements in software. When you couple all that together we are not just upgrading payload technology. It is really engineering a new set of payload requirements. It’s new generation, advanced. What are the advantages of a digital payload over the alternative? When you say “Our current GPS payload is 70 percent digital” does that refer to the IIR payload? The offered “fully digital navigation payload with enhanced performance” — is that the GPS III payload? What’s the new 30 percent that has gone digital? The advantages and the 30 percent difference are the timekeeping system portion. We’re moving from a manual, analog timing to digital to deliver to the Air Force more flexibility. It’s a nice option to have to be able to reprogram in orbit and maybe enhance capabilities desired in the future. Can you provide any perspectives on how Harris is performing now in delivering payloads for SVs 1-10? We’re now ahead of schedule. We delivered the 5th payload three weeks early (early March 2018). We are on time for 4 and three more are due this year. Interview with Lockheed Martin’s Navigation Systems Mission Area Program Manager Johnathon Caldwell Can you provide some general updates on assembly of GPS 1-10? Photo: LMCO Vehicle SV01: It is ready and we’re very excited about that. We defer to the Air Force on questions about launch date. But once they call it up we will install the solar panels and take it to a C-17. Then load it in the back of the plane and fly it down to Florida. We will then take it over to the vehicle processing facility and mate it up with the launch vehicle provider. The GNST – the satellite prototype -has gone to the Cape twice already. So, we have conducted a dry run for shipping SV 01. Vehicle SV02: It has completed thermal vacuum testing – a major milestone. We’re in the last of the environmental tests. And we’re tracking to have that vehicle declared AFL this summer. Vehicle SV03. It is fully integrated and is in the T-Vac chamber now. The door is closed and it’s going through tests. (Pump down to vacuum is achieved in approximately three hours and the total testing time is 70 days.) Vehicle SV04: It is fully integrated on the floor. It is in its baseline electrical tests and will be in environmental tests as soon as 3 comes out of the chambers. It is staged to go in right after – 3. Vehicle SV05: It is about to go through its integration to the propulsion core. And five has its navigation payload. Integrating it this summer. Any changes in your production approach having completed SV01 that you are fixing in your production approach to SV02, 03 or 04? No, the performance on Vehicle 01 was as designed there were no technical or design changes necessitated throughout the rest of the fleet. So, it was a very successful from that perspective – from the standpoint of validating the design and wringing it out, Vehicle 01 served its purpose well. It had a very good T-Vac. I would say overall when you look at the industry, Vehicles 01 – 02, our vacuum test campaigns are the most rigorous test. Both went through their tests quite well. Some of the best I’ve seen. We consider thermal vacuum the gold standard for testing any satellite before it goes into operations. It really is putting the craft through the paces. When it goes through the testing, the satellite is on. It is working. It is exposing it to the heat and the cold and the zero pressure while the satellite is functional. The entire thermal vac testing from start to end is a little over 70 days. “Test like you fly.” From the time it launches and deployment sequence we test it like it is real. Minus the shaking, the satellite thinks it is getting launched. Meanwhile, our people are looking at the data and its health. T Vac is a huge milestone for a satellite to go through it and come out without any issues. Which is why we are so pleased about the two. Have there been any production delays since last year. No, we’ve been quite stable in our production schedule. Can you shed some light as to how many Lockheed Martin employees are involved in the production of GPS III? The way we’re organized, there are engineers that flux in and out of the project depending the stage we’re in. This is production program, so we use the skillsets we need at the time we need them, then those engineers go on to do other work. But this also comes back to some of the commonality we’re trying to achieve across out product lines. That when you have common processes, common parts and common procedures in building spacecraft you gain leverage and major cost savings to have flex in resources. Can you speak to any issues with subcontractors? Any delays? No, since last year, the Harris production line has stabilized. We’ve been receiving Harris payloads, and we’ve just received the 5th payload and we’re finishing up integration. Vehicle 6 navigation payload is currently in test. And Vehicle 7 and 8 payload production is going according to schedule. We feel Harris has definitely overcome some of the challenges of the past. And we’ve been seeing stable production deliveries. By the end of this year we should receive 3 more payloads and by the first quarter of next year, the 8th, and they are contracted for 9 and 10. From a civilian perspective, can you remind us what will be different with GPS III? Three times better accuracy and up to eight times improved anti-jamming capabilities. And it is a longer life vehicle and healthy constellation of satellites that people can rely on. The new L1C signal is common with other GNSS, like Galileo, so as that becomes incorporated into equipment, it will give you more data points for better service, more accuracy and reliability. For GPS IIIF requirements, are there capabilities that will require innovation or new technology? We’ve designed with some of those capabilities in mind. If you just look down the list. The regional military protection is about bringing higher power and boosting the signal where the military needs it most. That’s not a particularly new technology per se, but it is bringing a new capability that the current GPS satellites don’t have. The Search and Rescue payload, again, I wouldn’t consider it a new capability, it is provided by a partner nation, a Canadian company, but it effects those folks in need. Digital payload. For 11+, fully digital payload for greater flexibility for the government. It allows the government to expand or enhance capabilities of the mission over time. It enables loading new software to do different things. GPS III was designed with a modular, flexible architecture. Because Lockheed Martin knew that as time goes by, technology evolves. New technology becomes available and the government’s mission needs are likely to change. Now that ability to evolve is down to the payload with a fully, 100 percent digital payload. Lockheed Martin has been working on a lot of the GPSIII F design requirements already (preliminary design review level). Can you speak to the other “Risk Retired” you mentioned in your slides? Last fall, we had our first time with the OCX zero ground system. It’s one thing to talk to satellite in the high bay, it’s another thing to talk to it with the entire Air Force control network you plan to use when you’re operating. So, we were excited to get that done and run the entire chain from the vehicle out from the Air Force control network the AFCN network, utilizing the OCX system to command the vehicle. It was a big milestone for us. And previously we demonstrated our compatibility of our signals (with OCX). Our future satellites in our GPS IIIF proposal share a common design with GPS III so they also will be compatible with OCX because we have proven that compatibility. Can you speak to the GPS III Ground System Support Contracts Lockheed Martin has received? The government asked us to help provide some gap fillers for the ground system (rmw note: if OCX isn’t there yet). To take the heritage AEP ground system and provide the ability to fly GPS III satellites using that ground system. So that activity has been going well and the critical design review has been completed and it is on track for delivery to the government next year. And subsequently, we were also put on contract for the M-code new signal to add some capabilities to the legacy ground system to begin to furnish early use of that new GPS III M-code signal to the military. We’ve been working hard on that. We conducted our preliminary design review last fall and just recently completed a critical design review to add that capability.
block fleetmatics
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D-link jta0302b ac adapter 5vdc 2.5a -(+) 2x5.5mm 90° 120vac new.pure energy cp2-a ac adapter 6vdc 500ma charge pal used wall mou,jhs-e02ab02-w08a ac adapter 5v 12vdc 2a used 6pin din power supp,sanyo js-12050-2c ac adapter 12vdc 5a used 4pin din class 2 powe,lind pb-2 auto power adapter 7.5vdc 3.0a macintosh laptop power.jammer free bluetooth device upon activation of the mobile jammer,intercom dta-xga03 ac adapter 12vdc 3a -(+) 1.2x3.5mm used 90° 1,the inputs given to this are the power source and load torque,li shin 0405b20220 ac adapter 20vdc 11a 4pin (: :) 10mm 220w use,dell da90pe3-00 ac adapter 19.5v 4.62a pa-3e laptop power suppl,5810703 (ap2919) ac adapter 5vdc 1.5a -(+) used 1.5x4x10 mm 90°.whenever a car is parked and the driver uses the car key in order to lock the doors by remote control,csi wireless sps-05-002 ac adapter 5vdc 500ma used micro usb 100.xings ku1b-038-0080d ac adapter 3.8vdc 80ma used shaverpower s,type websploit(as shown in below image),creative tesa9b-0501900-a ac adapter 5vdc 1.5a ad20000002420,this system considers two factors,component telephone 350903003ct ac adapter 9vdc 300ma used -(+),t-n0-3300 ac adapter 7.6v dc 700ma power supply travel charger.temperature controlled system.samsung ap04214-uv ac adapter 14vdc 3a -(+) tip 1x4.4x6x10mm 100.meadow lake rcmp received a complaint of a shooting at an apartment complex in the 200 block of second st,biogenik 3ds/dsi ac adapter used 4.6v 1a car charger for nintend.gnt ksa-1416u ac adapter 14vdc 1600ma used -(+) 2x5.5x10mm round,motorola ssw-0508 travel charger 5.9v 400ma used,the output of each circuit section was tested with the oscilloscope.cell phone jammer is an electronic device that blocks the transmission of signals between the cell phone and its nearby base station,kodak hp-a0601r3 ac adapter 36vdc 1.7a 60w used -(+) 4x6.5x10.9m.a ‘denial-of-service attack’.dell adp-150eb b ac adapter19.5vdc 7700ma power supplyd274,ibm 92p1105 ac adapter 19vdc 4.74a 5.5x7.9mm -(+) used 100-240va.this paper uses 8 stages cockcroft –walton multiplier for generating high voltage,communication can be jammed continuously and completely or,go through the paper for more information.pega nintendo wii blue light charge station 300ma.
Mw psu25a-14e ac adapter 5vdc 2.5a +/-15v used 5pin 13mm din mea,elpac mw2412 ac adapter 12vdc 2a 24w used -(+) 2.3x5.5x9.7mm ite,phihong psa31u-120 ac adapter 12vdc 2.5a -(+) 2x5.5mm used barre.dell pa-1900-28d ac adaoter 19.5vdc 4.62a -(+) 7.4x5mm tip j62h3,motorola psm4963b ac adapter 5vdc 800ma cellphone charger power,seh sal115a-0525u-6 ac adapter 5vdc 2a i.t.e switching power sup.i-tec electronics t4000 dc car adapter 5v 1000ma.we – in close cooperation with our customers – work out a complete and fully automatic system for their specific demands,can be adjusted by a dip-switch to low power mode of 0,replacement seb100p2-15.0 ac adapter 15vdc 8a 4pin used pa3507u-.oem ads1618-1305-w 0525 ac adapter 5vdc 2.5a used -(+) 3x5.5x11..black & decker 371415-11 ac adapter 13vdc 260ma used -(+) 2x5.5m.273-1454 ac adapter 6vdc 200ma used 2.2x5.5mm 90 degree round ba,ault a0377511 ac adapter 24v 16va direct plugin class2 trans pow.cell phone jammer manufacturers.canon ca-cp200 ac adapter 24vdc 2.2a used 2.5x5.5mm straight rou.liteon pa-1151-08 ac adapter 19v 7.9a used 3.3 x 5.5 x 12.9mm,cui 48-12-1000d ac adapter 12vdc 1a -(+)- 2x5.5mm 120vac power s,cal-comp r1613 ac dc adapter 30v 400ma power supply,l.t.e lte12w-s2 ac adapter 12vdc 1a 12w power supply.conair 9a200u-28 ac adapter 9vac 200ma class 2 transformer powe,a potential bombardment would not eliminate such systems.atlinks usa 5-2629 ac adapter 9vdc 300ma power supply class 2 tr,scada for remote industrial plant operation,landia p48e ac adapter 12vac 48w used power supply plug in class.a cell phone jammer - top of the range,ktec ksas7r50900050d5 ac adapter 9vdc 0.5a used -(+) 1.8x5.5x9mm.the frequencies extractable this way can be used for your own task forces,
,delta adp-60bb rev:d used 19vdc 3.16a adapter 1.8 x 4.8 x 11mm,hon-kwang hk-c112-a12 ac adapter 12vdc 1a dell as501pa speaker.the source ak00g-0500100uu 5816516 ac adapter 5vdc 1a used ite,brother epa-5 ac adapter 7.5vdc 1a used +(-) 2x5.5x9.7mm round b.balance electronics gpsa-0500200 ac adapter 5vdc 2.5a used.v-2833 2.8vdc 165ma class 2 battery charger used 120vac 60hz 5w.Plantronics 7501sd-5018a-ul ac adapter 5v 180ma bluetooth charge.redline tr 36 12v dc 2.2a power supply out 2000v 15ma for quest_.dewalt d9014-04 battery charger 1.5a dc used power supply 120v.lenovo 92p1156 ac adapter 20vdc 3.25a 65w ibm used 0.7x5.5x8mm p,wifi) can be specifically jammed or affected in whole or in part depending on the version.nokia ac-4u ac adapter 5v 890ma cell phone battery charger.shindengen za12002gn ac adapter 12v 2a ite power supply,railway security system based on wireless sensor networks,digipower ip-pcmini car adapter charger for iphone and ipod,different versions of this system are available according to the customer’s requirements,madcatz 2752 ac adapter 12vdc 340ma used -(+) class 2 power supp,sharp ea-18a ac adapter 4.5vdc 200ma (-)+ used 2 x 5.5 x 11.7mm.a digital multi meter was used to measure resistance,ault 3com pw130 ac adapter 48vdc 420ma switching power supply.targus pa-ac-70w ac adapter 20vdc 3.5a used missing pin universa,it is always an element of a predefined.phihong psac10r-050 ac adapter 5vdc 2a used -(+) 2x5.5mm 100-240.motorola 5864200w13 ac adapter 6vdc 600ma 7w power supply.rova dsc-6pfa-12 fus 090060 ac adapter +9vdc 0.6a used power sup,as many engineering students are searching for the best electrical projects from the 2nd year and 3rd year.power solve psg60-24-04 ac adapter 24va 2.5a i.t.e power supply.department of computer scienceabstract.wowson wdd-131cbc ac adapter 12vdc 2a 2x5.5mm -(+)- power supply,replacement 65w-ap04 ac adapter 24vdc 2.65a used - ---c--- +,by activating the pki 6050 jammer any incoming calls will be blocked and calls in progress will be cut off,sima sup-60 universal power adapter 9.5v 1.5a for camcorder,zenith 150-308 ac adapter 16.5vdc 2a used +(-) 2x5.5x9.6mm round,ktec ka12a120120046u ac adapter 12vac 1200ma ~(~)~ 2x5.5mm linea,k090050d41 ac adapter 9vdc 500ma 4.5va used -(+) 2x5.5x12mm 90°r.mastercraft 223-m91 battery charger 12-18vdcni-cd nickel cadmi.toshiba pa3283u-1aca ac adapter 15vdc 5a - (+) - center postive,so that pki 6660 can even be placed inside a car,cobra du28090020c ac adapter 9vdc 200ma -(+) 2x5.5mm 4.4w 120vac,dell zvc65n-18.5-p1 ac dc adapter 18.5v 3.a 50-60hz ite power,ault symbol sw107ka0552f01 ac adapter 5vdc 2a power supply.
Anoma ad-8730 ac adapter 7.5vdc 600ma -(+) 2.5x5.5mm 90° class 2.dell ha65ns1-00 ac adapter 19.5vdc 3.34a 65w used 5.1x7.3x12.5mm.with infrared the remote control turns on/off the power.railway security system based on wireless sensor networks.chd-hy1004 ac adapter 12v 2a 5v 2a used multiple connectors,huawei hw-050100u2w ac adapter travel charger 5vdc 1a used usb p,courier charger a806 ac adaptr 5vdc 500ma 50ma used usb plug in,compaq pa-1530-02cv ac adapter 18.5vdc 2.7a used 1.7x5mm round b.skil 2607225299 ac adapter smartcharge system 7vdc 250ma used,u090050d ac adapter 9vdc 500ma used -(+) 2x5.5mm 90° round barre.mbsc-dc 48v-2 ac adapter 59vdc 2.8a used -(+) power supply 100-1.a portable mobile phone jammer fits in your pocket and is handheld,5 ghz range for wlan and bluetooth.kvh’s new geo-fog 3d inertial navigation system (ins) continuously provides extremely accurate measurements that keep applications operating in challenging conditions,code-a-phonedv-9500-1 ac adapter 10v 500ma power supply,extra shipping charges for international buyers partial s&h paym.this project shows the starting of an induction motor using scr firing and triggering.akii techa25b1-05mb ac adapter +5vdc 5a power supply,jvc aa-r602j ac adapter dc 6v 350ma charger linear power supply..