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> While we have shown that we can use the Dwingeloo telescope to receive the carrier signal from Voyager-1, we cannot use the telescope to communicate with it.
by pavel_lishin 2y ago
> While we have shown that we can use the Dwingeloo telescope to receive the carrier signal from Voyager-1, we cannot use the telescope to communicate with it. NASA uses dishes in the Deep-Space Network (DSN) to communicate with Voyager 1. These dishes, located around the globe in Goldstone, Canberra and Madrid, are optimized for these higher frequencies and have a diameter of 70m, much larger than the 25m Dwingeloo Telescope.
I wonder if this was included as a "please don't ask us if we're capable of hacking it, we are not" CYA.
- giantg2 2y agoYeah, it seemed a bit odd. Like I would wonder if I could xommjnicste with it. But I would also know that could jeopardize the craft and is probably illegal in some way.
- dylan604 2y agoIt's only a natural thought for people, if you can hear it, can you talk to it. So I don't see it as a CYA as much as just cutting off questions from people that know the intricacies of that kind of radio communication
- charles_f 2y agoPretty crazy to think that it's sitting like this in the open, with its old APIs all ready to be pentested. Secured by literal obscurity, introduced by a distance of a light day from the closest hacker.
- ragebol 2y agoI think the obscurity is more due to the fact that reaching it with sufficient signal strength requires a big, big dish with a big, big amplifier.
- drmpeg 2y agoAlso, the exact uplink and downlink frequencies are not published.
- viraptor 2y agohttps://voyager.gsfc.nasa.gov/Library/DeepCommo_Chapter3--141029.pdf https://voyager.gsfc.nasa.gov/Library/DeepCommo_Chapter3--14... seems to include pretty specific up/down carrier frequencies and channels used.
- drmpeg 2y agoI wonder why the frequency was redacted in this tweet. https://x.com/nascom1/status/1851789221885022416 https://x.com/nascom1/status/1851789221885022416
- viraptor 2y agoMaybe they're hiding the current Doppler shift? Or just trying to prevent noise from randos experimenting in that range?
- ElectRabbit 2y agoThey removed the frequencies from some of the more popular sites. That started during early stages of the Ukraine invasion. But it's still super easy to find them. Usually it takes a few hours until the sat ham guys find them and post spectrums.
- ElectRabbit 2y agoThe frequencies of most research satellites are all well known. But it takes more than 30 seconds of Googling.
- MoreMoore 2y agoI'm more surprised that Russia or China haven't attempted to communicate with things like Voyager. Not necessarily to sabotage, but to find out as much as they can about it by interacting with it.
- ben_w 2y agoAt the time? Perhaps, I don't know when the design documents* became public. But today, Voyager 1 is a 50 year old curiosity, still of interest to cosmologists of course, but governments will be less interested in it than archeologists. * e.g. https://voyager.gsfc.nasa.gov/Library/VOY_library.html https://voyager.gsfc.nasa.gov/Library/VOY_library.html and https://ntrs.nasa.gov/api/citations/19660011758/downloads/19660011758.pdf https://ntrs.nasa.gov/api/citations/19660011758/downloads/19...
- deleted 2y ago[deleted]