Collaborate Disseminate
Could the proof of concept the researchers describe be used to eavesdrop on actual satellite phone calls? It depends … Continue reading Researchers find chinks in the armour of satellite phone calls
Could the proof of concept the researchers describe be used to eavesdrop on actual satellite phone calls? It depends … Continue reading Researchers find chinks in the armour of satellite phone calls
Communicating with a satellite seems like something that should take a lot of equipment. A fancy antenna and racks full of receivers, filters, and amplifiers would seem to be the entry-level suite of gear. But listening to a weather satellite with an old pair of rabbit ears and an SDR dongle? That’s a thing too.
There was a time when a pair of rabbit ears accompanied every new TV. Those days are gone, but [Thomas Cholakov (N1SPY)] managed to find one of the old TV dipoles in his garage, complete with 300-ohm twinlead and spade connectors. He put it to …read more
Continue reading Old Rabbit Ears Optimized for Weather Satellite Downlink
Space is a mess, and the sad truth is, we made it that way. Most satellites that have been lofted into Earth orbit didn’t have a plan for retiring them, and those dead hulks, along with the various bits of jetsam in the form of shrouds, fairings, and at least one astronaut’s glove, are becoming a problem.
A mission intended to clean up space junk would be fantastically expensive, but money isn’t the only problem. It turns out that it’s really hard to grab objects in space unless they were specifically designed to be grabbed. Suction cups won’t work in …read more
Is it technically possible to localize where is located a client connected via a satellite internet connection?
Continue reading Can a satellite internet connection be localized? [on hold]
[9A4OV] set up a receiver using the HackRF board and an LNA that can receive the NOAA 19 satellite. Of course, a receiver needs an antenna, and he made one using a cooking pot. The antenna isn’t ideal – at least indoors – but it does work. He’s hoping to tweak it to get better reception. You can see videos of the antenna and the resulting reception, below.
The satellite is sending High-Resolution Picture Transmission (HRPT) data which provides a higher image quality than Automatic Picture Transmission (APT). APT is at 137 MHz, but HRPT is at 1698 MHz and …read more
The number of things that can be done from the comfort of one’s own bed has increased in recent years — shopping, banking and now geospatial analytics. Ok, it doesn’t sound sexy but it might give you a leg up the next time your friend starts an arcane argument with you over whose neighborhood historically has more vehicles on the road. With SpaceKnow’s online… Read More Continue reading Commission your own traffic and construction studies without ever leaving bed using SpaceKnow
I use satellite internet and I would like to have some a little more privacy when using the internet.
TCP spoofing appears to be an issue among other things and the people from a well known VPN service tell me its a no-go. I… Continue reading How to keep web traffic private with a satellite intenet connection
I use satellite internet and I would like to have some a little more privacy when using the internet.
TCP spoofing appears to be an issue among other things and the people from a well known VPN service tell me its a no-go. I… Continue reading How to keep web traffic private with a satellite intenet connection
Is over-reliance on machines to blame? Continue reading GPS Is Sending Runaway Trucks Through a Tiny Arkansas Town
