Hmm, I like that idea. Put a little 'disco ball' (likely will look more like one of those little white-dome motion sensors) in the ceiling of rooms, and multicast the video signal out from them. Watch HDTV on any device capable of receiving the signal! If the bandwidth allows you can easily multicast different streams and such...
And it can function as a 'hub' - allowing communication between the clients and up to the multicasters.
At this wavelength it's better to picture this as light, given that it reflects/absorbs much more than traditional radio energy.
(what part of non-ionizing don't you understand? Either it reflects, or is absorbed as heat.) They quite simply don't have the energy to do anything bad when they interact.
I, for one, despise it. I want you to put your real price up on display. No bullshit. I give you money, you give me product. Time and energy wasted haggling could be used more productively.
It doesn't have to be the cops in control of the key. It could be a different agency, or a contractor, or committee etc.
That's the fun thing. Dash cam footage exists in one place for the most part and is easy to disappear. Radio keys would be loaded into every radio used, and the keying system could be linked into another system the cops themselves do not have control over (see above) that would take care of the release. I think you can call this key escrow? Losing that key would be a lot riskier for them, because the chances of someone else having it are much higher. Bad deeds look even worse when you get caught trying to hide them.
True enough, I bring that same idea up elsewhere. But at that point you're really just doing what you can. The 'best' way to do it would to use hand signals... but those could be easily missed and only work with decent line of sight.
Well, to answer that back - it's a variable. You don't like variables you can't know or control in those types of situations.
And again, this really is only a problem if you never release the key (or fail to do so in a timely manner). Use the encryption when you must. When it's over, release the key used, and rekey the radios for the next event. Everyone's happy.
No, he isn't. The whole job of the negotiator is to bring it down then try to talk them out. If their stress is firewalled the whole time, then that negotiator is doing a very poor job.
And remember, I'm not saying encrypt it and never ever release the key. I'm only talking about delaying. We still get our oversight, and they still get their operational security.
The point is when the negotiator is trying to talk them down, you don't want them to hear the radio chatter about the team getting ready to shoot him if it fails. That jacks his stress right up, and makes it much more likely he'll panic and do something stupid, getting people killed or hurt.
You can wait an hour to find out what Officer Joe said.
Yep, because Asshole McHostageTaker should hear about that SWAT team about to bust in so he can kill the poor victim before anything can be done about it?
Extremes are bad, mmkay? We don't want it to always be encrypted, but we also don't want it to never be.
Yep, I replied to myself. I realized that too late to include it in what you just replied to. Even if you don't know the exact signals, you can watch a spectrum analyzer and just look for signal pairs.
The entire concept of the police having the ability to hide what they are doing from the people is really disturbing.
Yes, but you have to admit there are certain important exceptions. But this can be easily rectified by recording the transmissions and using the key one time, so the signal can be decrypted after the fact.
I'm thinking of on-the-ground tactical radios. SWAT and such - there's not much reason the general public needs to hear that live, and you most definitely don't want some jackoff with a hostage catching wind to the fact there's a sniper aiming at him. Tends to make negotiation a bit difficult I would imagine.
oh also: you'd also be able to figure out if that's in play just by 'looking' to either side of the signal. (input and output frequencies are usually separated). You can tell simplex from repeater usage even without the actual 'data' being intelligible.
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Hmm, I like that idea. Put a little 'disco ball' (likely will look more like one of those little white-dome motion sensors) in the ceiling of rooms, and multicast the video signal out from them. Watch HDTV on any device capable of receiving the signal! If the bandwidth allows you can easily multicast different streams and such...
And it can function as a 'hub' - allowing communication between the clients and up to the multicasters.
At this wavelength it's better to picture this as light, given that it reflects/absorbs much more than traditional radio energy.
What about reflection? Just because they can't go through the wall doesn't mean they can't reflect off the other wall and through the door.
Yea, because heat causes cancer.
Better turn off your heaters!
(what part of non-ionizing don't you understand? Either it reflects, or is absorbed as heat.) They quite simply don't have the energy to do anything bad when they interact.
WAN is not everything. What about communications between your devices, eh?
I, for one, despise it. I want you to put your real price up on display. No bullshit. I give you money, you give me product. Time and energy wasted haggling could be used more productively.
Yea, because nobody else can record it...
I don't watch TV. I use my brain.
It doesn't have to be the cops in control of the key. It could be a different agency, or a contractor, or committee etc.
That's the fun thing. Dash cam footage exists in one place for the most part and is easy to disappear. Radio keys would be loaded into every radio used, and the keying system could be linked into another system the cops themselves do not have control over (see above) that would take care of the release. I think you can call this key escrow? Losing that key would be a lot riskier for them, because the chances of someone else having it are much higher. Bad deeds look even worse when you get caught trying to hide them.
True enough, I bring that same idea up elsewhere. But at that point you're really just doing what you can. The 'best' way to do it would to use hand signals... but those could be easily missed and only work with decent line of sight.
Those are analog. The data they move is digital, but the media is totally analog :) (I do know about PSK, MFSK etc. All about the ritty, baby)
Just a quick note: I'm a HAM as well. Got my General upgrade not long ago. :)
You don't see woody getting updates these days, do you? I thought they only kept stable and perhaps oldstable updated with critical fixes?
Well, to answer that back - it's a variable. You don't like variables you can't know or control in those types of situations.
And again, this really is only a problem if you never release the key (or fail to do so in a timely manner). Use the encryption when you must. When it's over, release the key used, and rekey the radios for the next event. Everyone's happy.
No, he isn't. The whole job of the negotiator is to bring it down then try to talk them out. If their stress is firewalled the whole time, then that negotiator is doing a very poor job.
And remember, I'm not saying encrypt it and never ever release the key. I'm only talking about delaying. We still get our oversight, and they still get their operational security.
The point is when the negotiator is trying to talk them down, you don't want them to hear the radio chatter about the team getting ready to shoot him if it fails. That jacks his stress right up, and makes it much more likely he'll panic and do something stupid, getting people killed or hurt.
You can wait an hour to find out what Officer Joe said.
You should probably go learn what a digital signature is and how it is not encryption.
Yep, because Asshole McHostageTaker should hear about that SWAT team about to bust in so he can kill the poor victim before anything can be done about it?
Extremes are bad, mmkay? We don't want it to always be encrypted, but we also don't want it to never be.
You do know you can transmit on a different frequency right? Anyone talking in a repeater is actually doing that already.
Check this out - basically something like that, but without all the extra goodies and flexibility? :)
I stand corrected and a bit smarter now. Thanks :)
Sounds like you're just describing a mixer in a superhet - same idea, different purpose.
You must be a release or two behind. the package 'sense-of-humor' had a critical bug that was recently fixed.
Yep, I replied to myself. I realized that too late to include it in what you just replied to. Even if you don't know the exact signals, you can watch a spectrum analyzer and just look for signal pairs.
The entire concept of the police having the ability to hide what they are doing from the people is really disturbing.
Yes, but you have to admit there are certain important exceptions. But this can be easily rectified by recording the transmissions and using the key one time, so the signal can be decrypted after the fact.
I'm thinking of on-the-ground tactical radios. SWAT and such - there's not much reason the general public needs to hear that live, and you most definitely don't want some jackoff with a hostage catching wind to the fact there's a sniper aiming at him. Tends to make negotiation a bit difficult I would imagine.
oh also: you'd also be able to figure out if that's in play just by 'looking' to either side of the signal. (input and output frequencies are usually separated). You can tell simplex from repeater usage even without the actual 'data' being intelligible.
Well, true enough. Do they use repeaters for those short range tactical radios?