You will likely be disappointed in cellular availability during a long blackout. I'm in the Midwest in a metro area of ~200k. We had a major weather event which took out power for 1-2 weeks. Almost all cellular towers went offline as soon as their batteries died. It seemed there were only 1-2 towers in the entire area that had generator backups.
Which assertion is that? My contention since my very first comment has always been that messing around with radio transmission when you don't know what you're doing is dangerous. My anecdote was an illustration of what actually happened when incorrect transmission broke a system for real, how dangerous the situation became, and how difficult it was to fix.
Maybe you disagree but I think the fact that the cause of the incorrect transmission was a hardware fault in that particular anecdote is relevant only if we don't think a user with the ability to freely modify firmware as we were discussing could cause exactly the same effect either negligently or maliciously. Otherwise, the argument being made is merely that not many people actually modify firmware in dangerous ways, in which case I refer you to the nuclear analogy in my original comment.
The problem is, the kinds of problems caused by modification of the radio and a manufacturing mistake can be totally different and so things that you encountered you wouldn't see if someone simply modified it to operate on a different frequency. Therefore, your story which hinges on this difference not existing doesn't hold up.
Actually, if you had reconfigured a device badly and it had ended up signalling incorrectly on a network's control channel as a result, the situation I encountered is exactly what you would have seen on that day. Do you understand what a control channel is and why it is relevant here?
I'm thinking of if the radio had a component failure/missing and the wave it produced was either amplified or modified to be something like a square wave. It would be hard to do the latter with a simple software mod but easy with hardware.
> A lot of them get advice from the internet or their parents that tends to be overly cynical and often dated. When we review resumes we often have to remove Microsoft Word and Excel from the qualifications section of programmer resumes because they heard from the internet or a parent that they’ll be rejected by automated HR software without those keyword. I still see people trying to keyword stuff their resumes with 6pt white text at the bottom (don’t do this)
Why is this a bad idea? I've had my resume auto filtered out in the past and the keywords at the bottom seem to have helped. I don't try to hide it in white-on-white text, though. I have an explicit section (though in a very small font) titled something like "automated scanner keywords"
5556,5557,5558,8010 + MDNS is how i got VLC & videostream to cast across vlans with ubiquiti, of course now i've setup an emby server now so don't bother anymore but i doubt its changed in the last year.
ATC operates on secondary radar (transponder data). If there is no transponder, it would not appear on their scope. Some facilities have an option to switch to primary radar, but it is not usually monitored.
