Testing on an actual satellite in orbit requires a license.
Quote from: kevin-rf on 11/15/2022 12:23 amTesting on an actual satellite in orbit requires a license.Very true, but an experimental license is much easier to obtain.
SpaceX is hiring engineers to work on v2.0 solar panel production using teamtechnik Stringer Systems -- the TT2100: https://teamtechnik.com/en/new-energy/stringer-systems/solar-stringer-tt2100-i8 A single system can build 72.5MW-peak per year.
SOLAR STRINGER MACHINE SPECIALISTWorking for the Starlink Solar 2.0 team, the Solar Stringer Machine Specialist will be responsible for overall equipment effectiveness (OEE) of all Team Technik 2100 solar stringer machines (TTs). This includes building, installing, commissioning, troubleshooting, and maintaining all TT stringer assets. This specialist is expected to become the subject matter expert on the machines and showcase ownership over their operations.RESPONSIBILITIES:Responsible for the production outcome of the Starlink solar stringer machines as measured by equipment OEEWork with production team to develop training plans and standard work instructions for TT stringer operationsDevelop and implement robust preventative maintenance schedule with focus on increasing long term machine reliability as measured by machine uptimeDevelop new and improve design on existing production assets to improve robustness and ease operationsCommission new stringer assets, effective project management skills to drive efficient project completionPromote 5S principles of organizing and sustaining efficient and presentable team work spacesRead, understand and utilize system-level schematics and drawings (mechanical/electrical/pneumatic)Support production devices (HMIs, VM’s, etc)
SpaceX is hiring engineers to build their own Traveling Wave Tube Amplifiers -- these are expected to be used on v4 Gateway antennas for E-Band connectivity @mikepuchol @Megaconstellati
RF ENGINEER, VACUUM ELECTRONICS (STARLINK)Starlink provides high-speed internet planetwide with the world's largest constellation of satellites and our global ground network. Our team develops the RF devices that power the satellites and ground antennas - from power amplifiers to waveguide components to reflectors. To enable current and next generation Starlink satellites and gateways, we are developing traveling wave tube amplifiers for high bandwidth communications systems. These devices are being designed for in house manufacturing at a scale significantly higher than typical industry. Want to help build the next era of Internet? We are looking for creative and driven engineers to develop vacuum electron devices for the next generation Starlink ground antennas. As an RF engineer, you will design, simulate, and test millimeter-wave amplifiers in a cross-functional team with exceptional mechanical, electrical, RF, and software engineers.Engineers on this team are curious, love to innovate, and excel in dynamic cross-functional teams.RESPONSIBILITIES:Develop millimeter-wave traveling wave tube amplifier (TWTA) covering every aspect from component to system level - electron gun, slow-wave structure, magnetic confinement circuit, collectorUse simulation tools to accelerate hardware developmentAssist in development of test equipment to characterize development hardware and screen production hardwareAchieve great systems solutions through collaboration with engineers owning high-voltage power supply, waveguide networks, modem, antennas, and softwareCollaborate with production engineers to bring your designs into production
A new study in Space Weather, a journal published by the American Geophysical Union, provides an analysis of space weather conditions that led to the Starlink satellite loss. Scientists from NOAA’s Space Weather Prediction Center and Cooperative Institute for Research in Environmental Sciences (CIRES) at the University of Colorado at Boulder worked closely with SpaceX Starlink to co-author this study. They used observations from the Starlink satellites and forecasts and numerical simulations from NOAA to demonstrate the disturbance in the upper atmosphere and enhanced satellite drag conditions during the February event. This study confirms SpaceX’s preliminary analysis: high satellite drag conditions reduced satellite stability and made the orbit-raising process impossible. In response, the satellites quickly deorbited and ultimately burned up during reentry into the Earth’s atmosphere.
On 3 February 2022, SpaceX Starlink launched and subsequently lost 38 of 49 satellites due to enhanced neutral density associated with a geomagnetic storm. This study examines the space weather conditions related to the satellite loss, based on observations, forecasts, and numerical simulations from the National Oceanic and Atmospheric Administration Space Weather Prediction Center (SWPC). Working closely with the Starlink team, the thermospheric densities along the satellite orbits were estimated and the neutral density increase leading to the satellite loss was investigated. Simulation results suggest that during the geomagnetic storm, pre-launch Monte Carlo analyses performed by the Starlink team using empirical neutral density inputs from NRLMSISE-00 tended to underestimate the impact relative to predictions from the operational coupled Whole Atmosphere Model and Ionosphere Plasmasphere Electrodynamics physics-based model. The numerical simulation indicated this minor to moderate geomagnetic storm was sufficient to create 50%–125% density enhancement at altitudes ranging between 200 and 400 km. With the increasing solar activity of Solar Cycle 25, satellites in low-Earth orbit are expected to experience an increasing number of thermospheric expansion events. Currently, no alerts and warnings issued by SWPC are focused on satellite users concerned with atmospheric drag and related applications. Thus, during geomagnetic storms, it is crucial to establish suitable alerts and warnings based on neutral density predictions to provide users guidance for preventing satellite losses due to drag and to aid in collision avoidance calculations.
There have been occasional reports over the past months of small-scale testing, but over the past week the Starlink network has jumped from near-zero to over 10% IPv6 capable - clearly something new has been switched on.Good news for all of you that do not enjoy life behind CG-NAT.
Quote from: su27k on 11/23/2022 12:46 pmAccording to reddit, it looks like Starlink is starting to roll out IPv6:Quote from: r/certunaThere have been occasional reports over the past months of small-scale testing, but over the past week the Starlink network has jumped from near-zero to over 10% IPv6 capable - clearly something new has been switched on.Good news for all of you that do not enjoy life behind CG-NAT.As best I can tell from user reports, It's just Seattle right now. Previously it was available briefly in Atlanta. Hopefully they do a wild rollout soon!
According to reddit, it looks like Starlink is starting to roll out IPv6:Quote from: r/certunaThere have been occasional reports over the past months of small-scale testing, but over the past week the Starlink network has jumped from near-zero to over 10% IPv6 capable - clearly something new has been switched on.Good news for all of you that do not enjoy life behind CG-NAT.
Can somebody give me a baby talk explanation of the benefits here? I'm not very well versed in network jargon, and I honestly don't understand why I should not be enjoying my life behind CG-NAT (it seems fine right now).Is this something that has big benefits for residential users, or is it more a business use thing?
Hyperbole. I would be surprised if it’s profitable to make the dishes even at $700.
Companies will typically subsidize upfront costs, banking on a long term return.Considering that these are short term accounts, with most of them likely to stop paying soon after the war ends it's not unreasonable to want to get your money upfront. (Exactly how to do that fairly is more complicated).How long do they need an account to be active to recover the upfront costs?
Quote from: mn on 11/30/2022 03:03 pmCompanies will typically subsidize upfront costs, banking on a long term return.Considering that these are short term accounts, with most of them likely to stop paying soon after the war ends it's not unreasonable to want to get your money upfront. (Exactly how to do that fairly is more complicated).How long do they need an account to be active to recover the upfront costs?Why are you apologizing for this? If comcast was doing this in ukraine, everyone would be grabbing their pitchforks. The entire mood of this conversation is different because the richest human to EVER exist runs a very successful popularity campaign, and makes himself the public face of this company.