#downlink — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #downlink, aggregated by home.social.
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Why Earth observation data is getting stuck in orbit
https://fed.brid.gy/r/https://spacenews.com/why-earth-observation-data-is-getting-stuck-in-orbit/
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#ArsTechnica:
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US spy satellites built by SpaceX send signals in the “wrong direction”
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"It seems US didn’t coordinate Starshield’s unusual spectrum use with other countries."14.11.2025
#downlink #ISED #ITU #NASA #NOAA #NRO #NTIA #Raumfahrt #satcom #Satelliten #Satellitenkommunikation #sattv #SpaceFlight #SpaceX #Starlink #Starshield #uplink #USA
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#ArsTechnica:
"
US spy satellites built by SpaceX send signals in the “wrong direction”
"
"It seems US didn’t coordinate Starshield’s unusual spectrum use with other countries."14.11.2025
#downlink #ISED #ITU #NASA #NOAA #NRO #NTIA #Raumfahrt #satcom #Satelliten #Satellitenkommunikation #sattv #SpaceFlight #SpaceX #Starlink #Starshield #uplink #USA
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#ArsTechnica:
"
US spy satellites built by SpaceX send signals in the “wrong direction”
"
"It seems US didn’t coordinate Starshield’s unusual spectrum use with other countries."14.11.2025
#downlink #ISED #ITU #NASA #NOAA #NRO #NTIA #Raumfahrt #satcom #Satelliten #Satellitenkommunikation #sattv #SpaceFlight #SpaceX #Starlink #Starshield #uplink #USA
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#ArsTechnica:
"
US spy satellites built by SpaceX send signals in the “wrong direction”
"
"It seems US didn’t coordinate Starshield’s unusual spectrum use with other countries."14.11.2025
#downlink #ISED #ITU #NASA #NOAA #NRO #NTIA #Raumfahrt #satcom #Satelliten #Satellitenkommunikation #sattv #SpaceFlight #SpaceX #Starlink #Starshield #uplink #USA
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#ArsTechnica:
"
US spy satellites built by SpaceX send signals in the “wrong direction”
"
"It seems US didn’t coordinate Starshield’s unusual spectrum use with other countries."14.11.2025
#downlink #ISED #ITU #NASA #NOAA #NRO #NTIA #Raumfahrt #satcom #Satelliten #Satellitenkommunikation #sattv #SpaceFlight #SpaceX #Starlink #Starshield #uplink #USA
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#WinFuture:
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Geheime SpaceX-Satelliten funken auf verbotenen Frequenzen
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"Ein Netzwerk streng geheimer Satelliten des US-Raumfahrtunternehmens SpaceX sorgt derzeit für Unruhe unter Experten. Denn sie senden Signale auf Frequenzen, die sie in dieser Form eigentlich gar nicht nutzen dürfen."https://winfuture.de/news,154354.html
20.10.2025
#downlink #ITU #NRO #Raumfahrt #satcom #Satelliten #Satellitenkommunikation #SpaceFlight #SpaceX #Starlink #Starshield #uplink #USA
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#WinFuture:
"
Geheime SpaceX-Satelliten funken auf verbotenen Frequenzen
"
"Ein Netzwerk streng geheimer Satelliten des US-Raumfahrtunternehmens SpaceX sorgt derzeit für Unruhe unter Experten. Denn sie senden Signale auf Frequenzen, die sie in dieser Form eigentlich gar nicht nutzen dürfen."https://winfuture.de/news,154354.html
20.10.2025
#downlink #ITU #NRO #Raumfahrt #satcom #Satelliten #Satellitenkommunikation #SpaceFlight #SpaceX #Starlink #Starshield #uplink #USA
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#WinFuture:
"
Geheime SpaceX-Satelliten funken auf verbotenen Frequenzen
"
"Ein Netzwerk streng geheimer Satelliten des US-Raumfahrtunternehmens SpaceX sorgt derzeit für Unruhe unter Experten. Denn sie senden Signale auf Frequenzen, die sie in dieser Form eigentlich gar nicht nutzen dürfen."https://winfuture.de/news,154354.html
20.10.2025
#downlink #ITU #NRO #Raumfahrt #satcom #Satelliten #Satellitenkommunikation #SpaceFlight #SpaceX #Starlink #Starshield #uplink #USA
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#WinFuture:
"
Geheime SpaceX-Satelliten funken auf verbotenen Frequenzen
"
"Ein Netzwerk streng geheimer Satelliten des US-Raumfahrtunternehmens SpaceX sorgt derzeit für Unruhe unter Experten. Denn sie senden Signale auf Frequenzen, die sie in dieser Form eigentlich gar nicht nutzen dürfen."https://winfuture.de/news,154354.html
20.10.2025
#downlink #ITU #NRO #Raumfahrt #satcom #Satelliten #Satellitenkommunikation #SpaceFlight #SpaceX #Starlink #Starshield #uplink #USA
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#WinFuture:
"
Geheime SpaceX-Satelliten funken auf verbotenen Frequenzen
"
"Ein Netzwerk streng geheimer Satelliten des US-Raumfahrtunternehmens SpaceX sorgt derzeit für Unruhe unter Experten. Denn sie senden Signale auf Frequenzen, die sie in dieser Form eigentlich gar nicht nutzen dürfen."https://winfuture.de/news,154354.html
20.10.2025
#downlink #ITU #NRO #Raumfahrt #satcom #Satelliten #Satellitenkommunikation #SpaceFlight #SpaceX #Starlink #Starshield #uplink #USA
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#Classified satellite network is emitting a mysterious signal…
https://www.npr.org/2025/10/17/nx-s1-5575254/spacex-starshield-starlink-signal
"Use of those frequencies to #downlink data runs counter to standards set by the International Telecommunication Union, a United Nations agency that seeks to coordinate the use of radio #spectrum globally. #Starshield's unusual transmissions have the potential to interfere with other scientific & commercial satellites, warns Scott Tilley, an amateur #satellite tracker in Canada who first spotted the #signals." -
#Classified satellite network is emitting a mysterious signal…
https://www.npr.org/2025/10/17/nx-s1-5575254/spacex-starshield-starlink-signal
"Use of those frequencies to #downlink data runs counter to standards set by the International Telecommunication Union, a United Nations agency that seeks to coordinate the use of radio #spectrum globally. #Starshield's unusual transmissions have the potential to interfere with other scientific & commercial satellites, warns Scott Tilley, an amateur #satellite tracker in Canada who first spotted the #signals." -
#Classified satellite network is emitting a mysterious signal…
https://www.npr.org/2025/10/17/nx-s1-5575254/spacex-starshield-starlink-signal
"Use of those frequencies to #downlink data runs counter to standards set by the International Telecommunication Union, a United Nations agency that seeks to coordinate the use of radio #spectrum globally. #Starshield's unusual transmissions have the potential to interfere with other scientific & commercial satellites, warns Scott Tilley, an amateur #satellite tracker in Canada who first spotted the #signals." -
#Classified satellite network is emitting a mysterious signal…
https://www.npr.org/2025/10/17/nx-s1-5575254/spacex-starshield-starlink-signal
"Use of those frequencies to #downlink data runs counter to standards set by the International Telecommunication Union, a United Nations agency that seeks to coordinate the use of radio #spectrum globally. #Starshield's unusual transmissions have the potential to interfere with other scientific & commercial satellites, warns Scott Tilley, an amateur #satellite tracker in Canada who first spotted the #signals." -
#Classified satellite network is emitting a mysterious signal…
https://www.npr.org/2025/10/17/nx-s1-5575254/spacex-starshield-starlink-signal
"Use of those frequencies to #downlink data runs counter to standards set by the International Telecommunication Union, a United Nations agency that seeks to coordinate the use of radio #spectrum globally. #Starshield's unusual transmissions have the potential to interfere with other scientific & commercial satellites, warns Scott Tilley, an amateur #satellite tracker in Canada who first spotted the #signals." -
If a #reticulum #meshchat instance with a #lxmf address on one computing device has 4 identical #lora #rnodes #rnode interfaces, each with same settings of frequency #spreadingfactor #sf, each rnode having a #directional #yagi #antenna in close vicinity, will transmission to a sender of a #deliveryconfirmation (#downlink) from 1 antenna to the sender's direction, be messed up due to local #collision at rnode 1 of different attempted #acknowledgement signals of the other 3 near rnodes?
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If a #reticulum #meshchat instance with a #lxmf address on one computing device has 4 identical #lora #rnodes #rnode interfaces, each with same settings of frequency #spreadingfactor #sf, each rnode having a #directional #yagi #antenna in close vicinity, will transmission to a sender of a #deliveryconfirmation (#downlink) from 1 antenna to the sender's direction, be messed up due to local #collision at rnode 1 of different attempted #acknowledgement signals of the other 3 near rnodes?
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If a #reticulum #meshchat instance with a #lxmf address on one computing device has 4 identical #lora #rnodes #rnode interfaces, each with same settings of frequency #spreadingfactor #sf, each rnode having a #directional #yagi #antenna in close vicinity, will transmission to a sender of a #deliveryconfirmation (#downlink) from 1 antenna to the sender's direction, be messed up due to local #collision at rnode 1 of different attempted #acknowledgement signals of the other 3 near rnodes?
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If a #reticulum #meshchat instance with a #lxmf address on one computing device has 4 identical #lora #rnodes #rnode interfaces, each with same settings of frequency #spreadingfactor #sf, each rnode having a #directional #yagi #antenna in close vicinity, will transmission to a sender of a #deliveryconfirmation (#downlink) from 1 antenna to the sender's direction, be messed up due to local #collision at rnode 1 of different attempted #acknowledgement signals of the other 3 near rnodes?
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If a #reticulum #meshchat instance with a #lxmf address on one computing device has 4 identical #lora #rnodes #rnode interfaces, each with same settings of frequency #spreadingfactor #sf, each rnode having a #directional #yagi #antenna in close vicinity, will transmission to a sender of a #deliveryconfirmation (#downlink) from 1 antenna to the sender's direction, be messed up due to local #collision at rnode 1 of different attempted #acknowledgement signals of the other 3 near rnodes?
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Networking With Balloons - Starlink has been making tremendous progress towards providing world-wide access t... - https://hackaday.com/2023/06/26/networking-with-balloons/ #raspberrypi #radiohacks #downlink #balloon #network #images #packet #rf4463 #radio #stm32 #aprs
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Networking With Balloons - Starlink has been making tremendous progress towards providing world-wide access t... - https://hackaday.com/2023/06/26/networking-with-balloons/ #raspberrypi #radiohacks #downlink #balloon #network #images #packet #rf4463 #radio #stm32 #aprs
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Networking With Balloons - Starlink has been making tremendous progress towards providing world-wide access t... - https://hackaday.com/2023/06/26/networking-with-balloons/ #raspberrypi #radiohacks #downlink #balloon #network #images #packet #rf4463 #radio #stm32 #aprs
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Networking With Balloons - Starlink has been making tremendous progress towards providing world-wide access t... - https://hackaday.com/2023/06/26/networking-with-balloons/ #raspberrypi #radiohacks #downlink #balloon #network #images #packet #rf4463 #radio #stm32 #aprs
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Networking With Balloons - Starlink has been making tremendous progress towards providing world-wide access t... - https://hackaday.com/2023/06/26/networking-with-balloons/ #raspberrypi #radiohacks #downlink #balloon #network #images #packet #rf4463 #radio #stm32 #aprs
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Woohoo! Nice looking NOAA-19 downlink on my #SatNogs station the other day. Now, why did this one come out so well, when they usually do not? 🤔 #satellite #downlink #noaa #hamradio
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Woohoo! Nice looking NOAA-19 downlink on my #SatNogs station the other day. Now, why did this one come out so well, when they usually do not? 🤔 #satellite #downlink #noaa #hamradio
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Woohoo! Nice looking NOAA-19 downlink on my #SatNogs station the other day. Now, why did this one come out so well, when they usually do not? 🤔 #satellite #downlink #noaa #hamradio
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Woohoo! Nice looking NOAA-19 downlink on my #SatNogs station the other day. Now, why did this one come out so well, when they usually do not? 🤔 #satellite #downlink #noaa #hamradio
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Woohoo! Nice looking NOAA-19 downlink on my #SatNogs station the other day. Now, why did this one come out so well, when they usually do not? 🤔 #satellite #downlink #noaa #hamradio
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SatNOGS Update Hack Chat - Join us on Wednesday, October 30 at noon Pacific for the SatNOGS Update Hack Chat with Pierros Papad... more: https://hackaday.com/2019/10/28/satnogs-update-hack-chat/ #hackadaycolumns #groundstation #thehackchat #ephemeris #satellite #altitude #downlink #tracking #antenna #azimuth #network #satnogs
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A Hybrid Helical Antenna for the Es’hail-2 Geosynchronous Repeater - Amateur radio operators like to say that working a contact in space can be done with a simple hand... - https://hackaday.com/2020/08/04/a-hybrid-helical-antenna-for-the-eshail-2-geosynchronous-repeater/ #geosynchronous #amateurradio #radiohacks #satellite #downlink #eshail-2 #repeater #helical #qo-100 #uplink #ham #lnb
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Swarm vs. Iridium: Which Satellite IoT Service is Right for You? - In a world where it seems like everyone’s face is glued to a device screen, the id... - https://hackaday.com/2022/08/12/swarm-vs-iridium-which-satellite-iot-service-is-right-for-you/ #techhacks #satellite #shoot-out #downlink #iridium #uplink #swarm #iot
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Hackaday Links: July 3, 2022 - Looks like we might have been a bit premature in our dismissal last week of the Su... - https://hackaday.com/2022/07/03/hackaday-links-july-3-2022/ #hackadaycolumns #hackadaylinks #geomagnetic #solarcycle #solarstorm #makergear #downlink #starlink #sunspots #ku-band #crypto #nvidia #flare #amd #gpu #5g
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Satellite Communications Hack Chat - Join us on Wednesday, June 2 at noon Pacific for the Satellite Comms Hack Chat wit... - https://hackaday.com/2021/06/01/satellite-communications-hack-chat/ #thehackadayprize #hackadaycolumns #satellite #downlink #hackchat #sdr
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Eavesdropping on Satellites for Fun and Profit - Geosynchronous satellites, girdling the Earth from their perches 36,000 km above the equator, are ... - https://hackaday.com/2020/08/20/eavesdropping-on-satellites-for-fun-and-profit/ #eavesdroppings #geosynchronous #securityhacks #satellite #downlink #security #exploit #defcon #cons
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How Does Starlink Work Anyway? - No matter what you think of Elon Musk, it’s hard to deny that he takes the dictum “There’s no such... more: https://hackaday.com/2020/02/20/how-does-starlink-work-anyway/ #currentevents #phasedarray #featured #backhaul #downlink #starlink #latency #optical #spacex #space #laser #ka #ku
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A #photograph of a United Launch Alliance #ULA #AtlasV #rocket, in its 401 configuration, ascending into the blue #Florida sky.
This Atlas V, with its 4 meter fairing, no solid rocket boosters, and a single #RL10 #engine on this #Centaur upper stage, is carrying a #Quasar #comsat for the National Reconnaissance Office #NRO. Quasar is believed to be the name for a network of communication #satellites that allow the NRO to maintain constant contact with its #spysats and #downlink data and #uplink tasks continuously.
The system has satellites in both #geostationary and #Molniya #orbits.
https://heronfox.pixels.com/featured/atlas-v-with-nrol-climbs-into-florida-sky-heron-and-fox.html -
A #photograph of a United Launch Alliance #ULA #AtlasV #rocket, in its 401 configuration, ascending into the blue #Florida sky.
This Atlas V, with its 4 meter fairing, no solid rocket boosters, and a single #RL10 #engine on this #Centaur upper stage, is carrying a #Quasar #comsat for the National Reconnaissance Office #NRO. Quasar is believed to be the name for a network of communication #satellites that allow the NRO to maintain constant contact with its #spysats and #downlink data and #uplink tasks continuously.
The system has satellites in both #geostationary and #Molniya #orbits.
https://heronfox.pixels.com/featured/atlas-v-with-nrol-climbs-into-florida-sky-heron-and-fox.html
