man_made=tower has an option for tower:structure=dish which is used with tower:type=communication for tall communication dishes aka satellite dishes, and we even render is at a dish with signals, in the openstreetmap-carto style.
But I agree that this is an odd way to do it, and it also doesn’t work for small dishes that are too short to be a tower or are on the ground. There area a few man_made=satellite_dish and man_made=communications_dish but no wiki or proposal. I would make a proposal, but I wouldn’t like to add further confusion, and my experience with the proposal process is discouraging so far. On Fri, Oct 26, 2018 at 7:45 AM Graeme Fitzpatrick <graemefi...@gmail.com> wrote: > & to throw another spanner in the works :-), what do you call satellite > dishes, either bubby ones for home use https://goo.gl/images/qaDzSX or > big commercial versions https://goo.gl/images/44ZhNd? > > They're certainly not towers, but they definitely are for communication > purposes. > > Thanks > > Graeme > > > On Fri, 26 Oct 2018 at 07:45, Kevin Kenny <kevin.b.ke...@gmail.com> wrote: > >> On Thu, Oct 25, 2018 at 4:46 PM Warin <61sundow...@gmail.com> wrote: >> >>> On 25/10/18 23:56, Paul Allen wrote: >>> >>> BTW, these days few radio telescopes are dishes. Most of them are >>> phased arrays and not on towers >>> or masts. >>> >>> >>> That depends on the frequency of operation. >>> >>> New dish reflecting ones are being build. They simply perform the best >>> for the intended frequencies. >>> >> >> And there are dishes with phased arrays at the feed point, for beam >> forming, and phased arrays of dishes, for long-baseline interferometry. It >> all depends on what frequency, SNR, polarization and angular resolution you >> need. Paul is right that larger phased arrays are now practicable because >> of better electronics, giving dishes less of an advantage, but phased >> arrays are as old as radio astronomy. Jansky built his "merry-go-round" >> Bruce antenna (20.5 MHz) in 1932, while Reber didn't build his first dish >> until 1937. Jocelyn Bell discovered pulsars on a phased array built at >> Cambridge by Ryle and Hewish (which also produced the 3C catalog of radio >> sources - including 3C273, the first known quasar). >> >> The conclusion is either, "Life is full of tradeoffs," or "you really >> don't want to know!" >> _______________________________________________ >> Tagging mailing list >> Tagging@openstreetmap.org >> https://lists.openstreetmap.org/listinfo/tagging >> > _______________________________________________ > Tagging mailing list > Tagging@openstreetmap.org > https://lists.openstreetmap.org/listinfo/tagging >
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