Timeline for Can left-hand and right-hand circular polarizations exist at the same time?
Current License: CC BY-SA 4.0
11 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Dec 10, 2020 at 13:35 | vote | accept | Phil Frost - W8II | ||
| Jun 26, 2020 at 22:29 | history | edited | Marcus Müller | CC BY-SA 4.0 |
deleted 2 characters in body
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| Jun 26, 2020 at 22:29 | comment | added | Marcus Müller | err yes. thanks! | |
| Jun 26, 2020 at 22:19 | comment | added | Phil Frost - W8II | "as long all media the wave travels through is a largely a linear medium and anisotropic." I think you mean "isotropic" here? | |
| Jun 26, 2020 at 20:03 | comment | added | Marcus Müller | gotta contradict you on the cheapness, though! I find hams to be pretty invested (financially) in their hobbies. People buy 200€ morse paddles, 2000€ receivers, they drill holes through their car roofs... (apropos GNU Radio: this weekend is virtual SDRA @HAMRADIO) | |
| Jun 26, 2020 at 19:57 | comment | added | Phil Frost - W8II | There's also the problem of equipment. Very few radios a ham might have even have two antenna inputs. I had to build my own because the only options I know of are really expensive, like the USRP. And hams are notoriously cheap. | |
| Jun 26, 2020 at 19:08 | comment | added | Marcus Müller | Interesting! Sure, a linearly polarized HF antenna is large enough to be cumbersome, adding a phased second element of orthogonal polarization doesn't sound tempting at all, and circularly polarized aperture antennas are mechanically infeasible alltogether. | |
| Jun 26, 2020 at 18:57 | comment | added | Phil Frost - W8II | People yes. But hams? Not much that I know of, especially on HF. | |
| Jun 26, 2020 at 18:11 | comment | added | Marcus Müller | @PhilFrost-W8II but people are using polarization multiplex, aren't they? | |
| Jun 26, 2020 at 15:45 | comment | added | Phil Frost - W8II | That's a good point about the distinction between wave and signal. I probably should have used wave in my question as it was closer to the point: the application under consideration was amateurs on HF, where almost certainly no one is doing any MIMO. | |
| Jun 26, 2020 at 12:14 | history | answered | Marcus Müller | CC BY-SA 4.0 |