11 ms·
Preemptive thermal shutdown at this temp doesn't mean the units aren't designed to handle much higher. It means at this stage in the beta program they aren't re
by awesomeusername 5y ago
Preemptive thermal shutdown at this temp doesn't mean the units aren't designed to handle much higher. It means at this stage in the beta program they aren't ready to push the envelope with customer deployed hardware.
I always back off from the maximum limits for the gear I design then after years in the field and proven reliability you can remotely update it and push things a bit. And that's in production. This is beta
- shaklee3 5y agoYou don't know that. It's highly likely that they know it will do damage above those temps and are doing this to prevent damage. We will see in a year or so.
- awesomeusername 5y agoResponding with 'you don't know that' to a comment with no specific assertions, followed by 'its highly likely...' is a good example of 'irony'. We need more of those on US centric forums as a public education service. Thanks.
- shaklee3 5y agoThat's not how it works. It's well known that overheating electronics for an extended period of time causes them to fail. Especially ones that are not rated for large temp ranges. So to speculate that it's probably not a real issue and that they could just change it later needs more evidence. They put the limit there in the first place, so why did they choose that temperature? Keep in mind these terminals need to last 5-10 years in these conditions. The motorized antenna is another part that is known to fail in extreme weather. Let's revisit this in a couple years when they have a decent amount of customers.
- admax88q 5y agoThis shouldn't even be considered "pushing the envelope" it's not that hot.
- unfunco 5y agoNot that hot? It's 122°, 134° is the highest ever recorded on Earth, it's pretty hot.
- bellyfullofbac 5y ago122F air temperature or 122F device temperature? Intel CPUs shut themselves down at 212F.
- moogly 5y agoIn the shade.
- markdown 5y agoThe critical components are in the shade of the dish.
- deleted 5y ago[deleted]
- SiVal 5y agoIt has hit 122 deg in the shade in California both of the past two summers (not yet this year). That's in the shade. Put equipment on a dark roof in full sunshine and your dish becomes a solar cooker. Maybe they could sell it that way, and claim autonomous switching between two useful modes.
- unixhero 5y agoFahrenheit not Celcius
- mattkrause 5y agoThat’s the air temperature. Dark objects in the sun heat up a lot faster. We have a thermometer with a black plastic sensor (why?!) in our balcony. When the sun hits it in mid-morning, it gets up to 120°F, even when the actual ambient temperature is more like 65°F.
- rini17 5y agoThe dishes reportedly use around 100W. To safely dissipate such a power at higher temps, the design would need visible features (such as active cooling). Can't be done by just pushing software update.
- josefx 5y agoDial down throughput and reliability of the connection once enough people have bought into the original hype? Downgrading the performance seemed to be the popular solution for battery issues on phones not too long ago.
- rini17 5y agoThings standing on pavement in direct sun can reach 50°C even without any added internal heat. Phones aren't supposed to be used in such situations at all, so it's hard to carry over design lessons from there. Plus the radio frequencies used are new, unlike phones.
- mynewycombi 5y agoI guess users would have to strap on heatsinks and fans?
- foobiekr 5y agoThis. I don’t understand why people give these companies credit for being able to solve problems when they straight up ignored industry experience. It’s like.. hey guys, the rest of the world has been designing satellite dishes for 40 years that addressed these problems including very low cost stuff from the satellite TV era. Why didn’t SpaceX learn from the rest of the industry instead of having to rediscover it?
- solarkraft 5y ago> Why didn’t SpaceX learn from the rest of the industry instead of having to rediscover it? Elon Musk famously works by „first principles“, which can indeed be roughly translated to „discover everything yourself“. The advantage is that it gives a clean slate for approaches considered impractical when the books were written.
- numpad0 5y ago122F = 50C Means the antenna is not even outdoor rated
- himinlomax 5y agoIt could just be a cutoff that's set to low, this event does not tell that much by itself. It may turn out that the antenna fries itself at 60C and that's why it's turning off at 50. Or perhaps it could easily handle much more but it was set at that temperature for some reason.