News for hackers. Stuff that matters.
Re:Starlink dishes go into “thermal shutdown” once they hit ... by MattGaiser on Friday June 18, 2021 @07:15PM (#27556056)
122F is 50C. How much of the world actually gets that hot?

AZ is currently the hottest place in the world at the moment. Not the upper range. The hottest place.

https://www.wx-now.com/Weather/WxExtremes?hottest=true

Re:Starlink dishes go into “thermal shutdown” once they hit ... by CapitalistCartr on Friday June 18, 2021 @07:30PM (#27556203)
Where I live in Florida, roofs routinely get hotter than that. Listed temps measure air temp, in a ventilated box 5 feet above grass. This is nothing like being on a roof in Summer here. We aren't a desert and we have tens of millions of people. This isn't going to work.

An aside, I was dating a woman from The North. She came here and we were travelling around the State. We stopped in Venice at a restaurant, I wasn't paying attention, and she just hopped out of the car barefoot! Only did that once, though.

Re:Starlink dishes go into “thermal shutdown” once they hit ... by kaesar14 on Friday June 18, 2021 @07:59PM (#27556445)
This would be absolutely wild to do in “the North” during summer as well.
Re:Starlink dishes go into “thermal shutdown” once they hit ... by tombot on Friday June 18, 2021 @08:03PM (#27556463)
You are living in a city affected by global warming
Re:Starlink dishes go into “thermal shutdown” once they hit ... by CapitalistCartr on Friday June 18, 2021 @08:43PM (#27556715)
I live in America's wang. Another few decades of "Global Improvement™" and the USA will be a eunuch.
Re:Starlink dishes go into “thermal shutdown” once they hit ... by oivey on Friday June 18, 2021 @08:10PM (#27556512)
Everyone is.
Re:Starlink dishes go into “thermal shutdown” once they hit ... by mjg59 on Friday June 18, 2021 @07:17PM (#27556081)
An object in direct sunlight is going to get hotter than the ambient air temperature.
Re:Starlink dishes go into “thermal shutdown” once they hit ... by jcrawfordor on Friday June 18, 2021 @07:21PM (#27556117)
especially when it's in direct sunlight sitting above roofing asphalt. Air temps can get up to 150 F without too much trouble on building roofs with a dark material.
Re:Starlink dishes go into “thermal shutdown” once they hit ... by stu2b50 on Friday June 18, 2021 @07:27PM (#27556168)
Very few places have air temperatures that hot, but in most of the US the surface of a metal fixture right under the sun can and will exceed 122F.
Re:Starlink dishes go into “thermal shutdown” once they hit ... by colechristensen on Friday June 18, 2021 @07:21PM (#27556111)
A sizable portion of the world has reached 45 C or higher.

And you have to keep in mind the temperature is measured in particular ways, local temps near dark surfaces can get significantly higher.

Re:Starlink dishes go into “thermal shutdown” once they hit ... by tyingq on Friday June 18, 2021 @07:54PM (#27556415)
I think the issue is that these dishes might be routinely mounted onto roofs, concrete pads, asphalt pads, etc. And, by requirement, in direct sun. Where the temperature could be significantly hotter than the air temperature you hear on a weather report.
Re:Starlink dishes go into “thermal shutdown” once they hit ... by c_o_n_v_e_x on Saturday June 19, 2021 @01:14AM (#27557960)
+55-56C is about is the hottest AIR temp you'll get globally. Pretty common to see telecomm gear that falls in line with this max temp. The +55C does not include heat from direct sunlight/insolation. Unless rated for much higher temps, you'll need a sun shade for your gear out in the field. Problem with Starlink is that with a sun shade you'd most likely lose line of sight to the sats or attenuate the signal badly.
Re:Starlink dishes go into “thermal shutdown” once they hit ... by fy20 on Saturday June 19, 2021 @04:17AM (#27558795)
Even in Northern Europe, a car parked in direct sunlight can easily get to 70C (160F) inside. In winter the same car may be expected to start up straight away without issues at -30C (-22F).
Re:Starlink dishes go into “thermal shutdown” once they hit ... by varjag on Saturday June 19, 2021 @05:44AM (#27559181)
While most modern car much of the time manage to start at -30C indeed, "expected" is overstating it. You really need one with an engine heater.
Re:Starlink dishes go into “thermal shutdown” once they hit ... by fy20 on Monday June 21, 2021 @02:40AM (#27576874)
Well I expect it of my car, and it hasn't let me down yet :-)
Re:Starlink dishes go into “thermal shutdown” once they hit ... by tomc1985 on Friday June 18, 2021 @07:55PM (#27556423)
Spain, or the deserts of Africa, California, Chile, or the southwestern US, as well as a good chunk of the middle east? What about anywhere along the equator?
Re:Starlink dishes go into “thermal shutdown” once they hit ... by kiadimoondi on Friday June 18, 2021 @10:51PM (#27557330)
I guess you could consider border states of Mexico as the same geographical region as the southwestern US, but those too. Anecdotal, but I've seen routine thermal throttling on macs in a border state with outdoor temperatures of 45, ambient indoor temperatures of 30-33, so you basically need either AC or some other external cooling system to manage more performance than a web browser and office apps.
Re:Starlink dishes go into “thermal shutdown” once they hit ... by tomc1985 on Saturday June 19, 2021 @01:10AM (#27557938)
I have heard anecdotal stories of the adhesive on rear-view mirrors of cars literally melting in the Phoenix sun (which can hit 120 F / 49 C or worse). So your story is not surprising at all, sadly
Re:Starlink dishes go into “thermal shutdown” once they hit ... by gimmeThaBeet on Friday June 18, 2021 @09:38PM (#27556981)
In addition to what people have said about the temperature of surfaces in direct sunlight, you have to account for the power the electronics are using. The aluminum backplate is serving multiple purposes, but judging by the gap pad they are using and RF electronics in general, it's likely a non-trivial amount of power.
Re:Starlink dishes go into “thermal shutdown” once they hit ... by msrenee on Friday June 18, 2021 @10:12PM (#27557152)
This isn't the hottest month though. And the air temperature doesn't have to be 122F, just the dish.
Re:Starlink dishes go into “thermal shutdown” once they hit ... by user3939382 on Friday June 18, 2021 @07:53PM (#27556410)
Palm Springs CA gets that hot, especially inside a vehicle.
Re:Starlink dishes go into “thermal shutdown” once they hit ... by brianwawok on Friday June 18, 2021 @08:17PM (#27556561)
You don’t put a star link inside a vehicle
Re:Starlink dishes go into “thermal shutdown” once they hit ... by user3939382 on Friday June 18, 2021 @09:28PM (#27556933)
That's true, but also -- an object sitting outside in the sun is going to exceed, or greatly exceed depending on the materials, the ambient temperature.
Re:Starlink dishes go into “thermal shutdown” once they hit ... by Rebelgecko on Friday June 18, 2021 @09:59PM (#27557094)
When the ambient temperature is 123°F (e.g. yesterday) where are you supposed to out it? Does the terminal work indoors? Even on cooler days in the low 100s your home's roof is going to be significantly warmer than 120f
Re:Starlink dishes go into “thermal shutdown” once they hit ... by beervirus on Friday June 18, 2021 @07:28PM (#27556185)
A piece of metal sitting in the sun can get that hot pretty easily in lots of places, even if the ambient temperature is much more reasonable.
Re:Starlink dishes go into “thermal shutdown” once they hit ... by ffggvv on Friday June 18, 2021 @11:51PM (#27557591)
it’s not about the air temperature. it’s surface temperature. i was at the beach the other day when it was only like 75 degrees but the sand was hot enough to burn my feet.
Re:Starlink dishes go into “thermal shutdown” once they hit ... by myth_drannon on Friday June 18, 2021 @07:31PM (#27556218)
In the desert sun it will be higher than 50 degrees.
Re:Starlink dishes go into “thermal shutdown” once they hit ... by forrestthewoods on Friday June 18, 2021 @07:28PM (#27556181)
Synthetic turf fields at your local park can get as hot 160 degrees pretty easily.