Timeline for What does it take to upgrade a radio antenna to receive from the surface of Mars?
Current License: CC BY-SA 4.0
15 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Mar 6, 2021 at 15:57 | comment | added | DrSheldon | @uhoh: Too silly to ask as a real question, but I'd like to know what kind of aperature the Professor could get by using an antenna array across the entire island. | |
| Mar 6, 2021 at 5:40 | answer | added | uhoh | timeline score: 1 | |
| Mar 6, 2021 at 4:09 | comment | added | Schwern | @uhoh This came about from azot's assertions that it would be easy to upgrade any given 32m antenna to listen to Perseverance, in particular Cheia. I don't know enough about antennas at this level of detail to even know what I don't know. So either Cheia, or whatever starting point that proves informative. | |
| Mar 6, 2021 at 3:10 | comment | added | uhoh | I want to contribute an answer, but I'm having trouble because the answer to "What does it take to upgrade a radio antenna..." and "what determines the capability of a radio antenna" is "It depends on the antenna." Are you imagining a 10 or 20 meter dish perhaps? An array like these 1, 2 or something like this: 3, 4? | |
| Mar 5, 2021 at 23:14 | answer | added | Synchrondyne | timeline score: 3 | |
| Mar 3, 2021 at 15:07 | comment | added | Carl Witthoft | Receiving a signal is one thing; having the software to decrypt (or unpack) it is quite another. | |
| Mar 3, 2021 at 14:30 | comment | added | Criticizing Israel not allowed | @Schwern Look up how antennas are constructed, and they're all about wavelengths and frequencies. Dish antennas, not so much, but you still need to install the electronics to receive the frequency you want. | |
| Mar 3, 2021 at 6:00 | history | tweeted | twitter.com/StackSpaceExp/status/1366991780852424707 | ||
| Mar 3, 2021 at 0:52 | comment | added | uhoh | @Schwern see above; I only knew about the "optical communications" with the US astronauts from Gilligan's Island, I didn't know Soviet astronauts had also landed there as well! I'm so confused now, my in-universe understanding of the island has been called into question. So I've just asked How many times did Gilligan's island castaways interact with astronauts and/or space capsules? | |
| Mar 3, 2021 at 0:31 | comment | added | uhoh | @DrSheldon search?q=Gilligan a few more and geoffc can have a tag like SciFi SE has | |
| Mar 2, 2021 at 22:40 | comment | added | Schwern | @DrSheldon He'd use the parts from that Soviet capsule that landed on the Island. I don't know that I even know enough to describe a starting point in detail, but Cheia keeps coming up. Let's assume The Professor had a working 32m dish for LEO tracking and you want to use it to receive directly from Perseverance. | |
| Mar 2, 2021 at 22:20 | comment | added | DrSheldon | If you're the Professor on Gilligan's Island, all it takes is a few coconuts and some seawater. Seriously, though, the answer is going to depend entirely on what equipment you start with. | |
| Mar 2, 2021 at 21:58 | comment | added | Schwern | @azot Perseverance, but any rover is fine. AFAIK they all use X-Band. I want to understand the nuts and bolts of why different radio antennas have different capabilities, and what goes into adding a specific frequency and sensitivity. | |
| Mar 2, 2021 at 21:37 | comment | added | azot | There exist a few landers still active on Mars and I believe you have to specify the range of frequencies each of them uses for transmitting data directly to Earth. | |
| Mar 2, 2021 at 21:13 | history | asked | Schwern | CC BY-SA 4.0 |
