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RF_Savage commented on Booting 5000 Erlangs on Ampere One 192-core   underjord.io/booting-5000... · Posted by u/ingve
QuantumNomad_ · 4 months ago
Neat! I always thought the name of the Erlang programming language just meant “Ericsson Language”, since this programming language was invented for Ericsson. Never knew there was anything more than that to the name!
RF_Savage · 4 months ago
And it was a pun by Ericsson engineers, as they used Erlang to program telephone switches where the capacity planing included Erlangs.
RF_Savage commented on Apple lacks strategic vision   unherd.com/2025/08/time-i... · Posted by u/retskrad
gonzo41 · 5 months ago
isn't the VR Scuba mask dead now?

I think Apple is hitting a wall that most tech companies are hitting. New gadgets aren't really improving our lives.

We have the internet on our phones, Now the internet is a wasteland.

Probably the biggest cultural innovation of the last 5 years has been podcasts and that's just gussied up radio.

RF_Savage · 5 months ago
And Apple was involved in that as well, even if it was not planed. The pod in podcast coming from iPod after all.
RF_Savage commented on Super-resolution of Sentinel-2 images (10M –> 5M)   github.com/Topping1/L1BSR... · Posted by u/mixtape2025-1
DoctorOetker · 5 months ago
pff making up details X2 in both directions... could at least have done real synthetic aperture calculations...
RF_Savage · 5 months ago
Yeah...
RF_Savage commented on Weather Model based on ADS-B   obrhubr.org/adsb-weather-... · Posted by u/surprisetalk
FL410 · 5 months ago
You're right, but "slightly older" is on the order of seconds.
RF_Savage · 5 months ago
But only for those areas with receiver coverage that feeds them.

But your own receiver will always cover your area.

RF_Savage commented on Claude Code weekly rate limits    · Posted by u/thebestmoshe
margalabargala · 5 months ago
SMS was designed from the start to fit in the handul of unused bytes in the tower handshake that was happening anyway, hence the 160 char limit. Its marginal cost has always been free on the supply side.
RF_Savage · 5 months ago
SMS routing and billing systems did cost money. Especially billing, as the standards had nothing for it, so it was done by 3rd party software for a very long time.
RF_Savage commented on It's a DE9, not a DB9 (but we know what you mean)   news.sparkfun.com/14298... · Posted by u/jgrahamc
skissane · 5 months ago
> While your preferred specification is excellent, It’s “an ethernet port” in ordinary usage. Or “ethernet jack” in more technical contexts and entirely sufficient for Ali Express.

Right, in your average 2020s home or office, "Ethernet" is almost certainly 8P8C (commonly known as RJ-45). In decades past it was more ambiguous – in the 1990s, coax – ThinNet/10Base2 – was still reasonably common; even the older ThickNet/10Base5 would still occasionally be encountered. So to some extent, being specific is a bit of an "old timer" trait–a habit picked up decades ago when it was still important, now maintained when it is rarely still necessary.

But even in the 2020s – in a factory, it could easily be M12 instead. Or even a mix of both – 8P8C in the offices, but M12 on the factory floor.

Honestly, even in a home environment, I hate how fragile and easily unplugged 8P8C connectors are (the worst part is when they get slightly pulled out, so they still look like they are plugged in, but the connection is dead or flaky). I've thought about using M12 at home before, but it probably wouldn't be very practical.

RF_Savage · 5 months ago
M12 gets old quick if you do a lot plug/unplug cycles.
RF_Savage commented on Start your own Internet Resiliency Club   bowshock.nl/irc/... · Posted by u/todsacerdoti
cedws · 6 months ago
I'm surprised that phone manufacturers haven't already implemented a mesh network. I guess you could kind of call Apple's Find My network one, but if you want to smuggle arbitary data the bandwidth is very low. Maybe Apple's new mobile Wi-Fi chip is a precursor to an actual Internet mesh network.
RF_Savage · 6 months ago
Not a single telco wants this. So it does not get built.

Interestingly DECT NR+ is a 5G standard on dedicated spectrum and has been designed to be a mesh from the start.

RF_Savage commented on How to modify Starlink Mini to run without the built-in WiFi router   olegkutkov.me/2025/06/15/... · Posted by u/LorenDB
NitpickLawyer · 6 months ago
~Iridium~ devices were bricked in the first days of the invasion, iirc. That's why starlink was such a big deal, and that's why the usmil wanted it "yesterday" after it proved itself in ua. They had to set up a dedicated unit to deal with starlink, as every branch was trying to get it on their own and complicated purchasing. That unit / project was also called starshield, confusing the matter with the other starshield project that uses starlink buses + ng sensor packages.

edit: it was Viasat not Iridium, I got them mixed up.

RF_Savage · 6 months ago
Viasat fixed modems got bricked at start of the war in Ukraine and some collateral one's in border areas.
RF_Savage commented on Ask HN: How do I learn practical electronic repair?    · Posted by u/juanse
hobs · 7 months ago
You can get an extremely shitty one for 20 dollars https://www.instructables.com/Flea-Scope-18-Msps-13-BoM-WebU... but when you are just starting its pretty cool!
RF_Savage · 7 months ago
The cheapies are less useful for debugging real problems, due to their bad UI and severe limitations.

A good, fast reacting multimeter is likely better thing to get than a cheap scope.

That said the cheapies might be usable for debugging audio stuff.

RF_Savage commented on Practical SDR: Getting started with software-defined radio   nostarch.com/practical-sd... · Posted by u/teleforce
dheera · 7 months ago
Only 3K to bounce shit off the moon?
RF_Savage · 7 months ago
Can be done more cheaply if tou are good at reusing things and building.

u/RF_Savage

KarmaCake day1106July 8, 2021
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