Re:Cellophane reality (was Re:Tron Woods)
on
Privacy in the Woods?
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· Score: 4, Interesting
Your phone may have had "serivce" but did you try to make a call? Often on top of ridges the towers reach the phone but the phone can't reach back to the towers, and calls don't go through. People feel safe because their little signal bar is up all the way, and then they get in trouble and don't uderstand when the call to 911 just doesn't work.
Yeah beacuse they make so much money from those navaid and air to air/ground comm transmissions.
When the airlines control the device they can get it certified that it will not screw with the onboard navaids and comms. Have you ever tried to put anything on an aircraft? The cost triples because of all the certifications it must go through. I am surprised they would bother to get wifi certified, but I guess they think it will be profitable in the end.
You mean like this?
It takes a minute, then the funny happens
Re:Don't bother with the video dl...
on
Wi-Fi in the Sky
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· Score: 1
Yeah really.. 10 second add for Toms Hardware and then 20 seconds of a plane with a blue background. There is not even any proof that there were computers onboard the aircraft from those videos.
I think the 85 runs faster because they hacked the 86 to have 96k of memory. This is just what I remember from reading about it years ago, so it might not be completely right, but the CPU they use in the 85/86 was only set up to use 32k of memory, so they have a mem controller guy in the 86 that swaps between three banks of ram and only allows the CPU to see one at a time. This I assume would require some loss in speed.
I laugh at all the people in classes that run with the 83 crowd. It seems everyone buys the 83 because its 15 bucks cheaper, but it has a crappy interface, worse looking screen, and the buttons are way to colorful. Also, all the "extra" programs in the TI-93Plus can be downloaded for the 86 from TI's website for free and added to your 86. In the comparison chart I saw nothing this new 84 did better than the 86 too...
You found me out! I hope it didn't ruin everything too much for you.
Re:Using mobile phones at altitude?
on
Listen to the Sky
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· Score: 4, Interesting
I have been on the top of a pretty high mountain (Bald Mt, Butte County, CA) during Field Day 2003. The cell had full strength signals but we couldn't make a call. When my friend got his roaming bill it turns out he was hitting a tower about 150 miles away. The better gain antennas on the cell tower could hit us, but out little.3w phone couldn't get back to it.
You can do some cool stuff with low-frequency listening. I have heard radio skip that was transmitted on the east coast, bounced of a meteor storm, and came back down to my little antenna in California. I also like the pings and zooms from various atmospheric disturbances. You don't even need a storm to do it, but that just adds to the randomness.
I am guessing that is why the cop thought it was OK to share with his friend, and then the internet. I am in Search & Rescue and work closely with law enforcement and fire/rescue squads, and we see terrible things fairly often. We eventually get used to it, for better or worse. I have to admit, I am getting more used to it every time I have to recover someone's body... it still gets to me but way less than the first time.
And places that deal with such things as this have services avaiable to them, either in the form of personal support or round-the-clock 800 numbers you can call and talk about anything you have seen/done on the job. They are just way under-used.
I am not leaving my $450 pager with anyone. And this is not a normal pager, after sounding the alarm from hell it plays the dispatch to where I need to go. I am not going to rely on some usher to remember if it was a dynamic water rescue on a river or a technical water rescue from a strainer in a creek. Sometimes people actually need to be able to get a message anytime anywhere.
If you are in the US under our FCC laws you cannot legally transmit on a frequency that you do not have a license for, excluding a few itinerant business frequencies. The Part 15 'interference acceptance' that you speak of is for random emmissions and not targeted powerful transmissions.
I carry a fire pager for Search & Rescue in my county. We are on call 24/7/365. There is no other agency in the county to perform search and rescue/recovery of lost poeple, so it is important to get my pages. This is also not a normal pager, it is louder than you can imagine and scares the shit out of anyone nearby when it goes off (including me). Think: high pitched rail road crossing alarm on your belt.
The thing is, I have adapted ways to quite the pager when I am in public places to lessen its exposure. Doctors and other such people that are always on call also do this. When you are used to being paged at the worst possible times you get used to trying to minimize its effect on people around you. You only notice and get annoyed by the people that answer and talk loudly to their friends about the party they are going to later.
Overall - Jamming signals is a bad idea. We should teach people to not be morons instead. But then I guess my Search & Rescue gig wouldn't be required anymore either.
Most people know very little about RF and how the bandplan sits in the US, or how radios even work.
There is a ton of stuff crammed into the 800mhz bands, including cellphones, pagers, public service, business. Sometimes they are sperated by mere khz. The 800mhz band is UGLY and the FCC should reorg it. But they are impotent.
Cellphones are also all over 1-2ghz. All a big mix of digital and analog. This thing "sends signals of 'no service' [... which] is better than messing with everything that uses the same frequencies cellphones do."
How is it going to send this no service signal wihtout using the cell phone frequencies? It has to transmit something, and that can be received by phones and anything else, even if those other things aren't tuned exactly to the cellphone bands. The issue comes with RF images. Just like music, RF has harmonics. You can pick up an 800mhz signal on a 400mhz receiver because it is hearing a harmonic (or image) of the other signal. If you know what it sounds like you can tell its only an image. Ever notice how you TV will sometimes pickup what is really on Ch's 2-10 up in the 70+ chs?
Also, I just can't let this one go... the article spouts this stupid "fact": "As with jammers, the larger the detector, the greater its range."
That is about as stupid as saying the larger the computer the more powerful it is. While sometimes it is true, there is no rule. I have a very nice receiver that receives all mode from 1khz to 2ghz and it fits in my pocket. I also have a box the size of a toaster that only hears 144mhz-148mhz.
Articles without any real facts are lame. News organizations just make everyone stupid by not reporting facts, only crap.
If there is an immediate threat to life and/or property it is an emergency. The system is supposed to be built to handle the average load of such emergencies, and PSAPs (Public Safety Answering Point) are supposed to take them in a very short ammount of time.
The problem is mainly when you call 911 from a cell phone you get a PSAP that is often not the one that covers the area you are currently in. In CA the CHP gets all cell 911 calls and then transfers them to the city/county fire/police once they figure out what the problem is. Then half the time the call is dropped and the other half they have to re-explain the problem to the new PSAP. Cell 911 is a big screw up so far, that is the main issue.
If this were fark there would be a photoshop picture of the CEO with a turd on his head. If thats the way you want to read your news, then go for it. I will take mine in green and white.
Have you ever USED WAAS? I have it turned on in my GPS and only get a WAAS signal if I am at about 4000' ASL or higher. And I use my GPS a lot. So far WAAS has not helped me all that much.
(I also know the map & compass way too)
Nick
Butte County Search & Rescue
Isn't it a standard in Justice that information be submitted in Word Perfect format? I thought somewhere I heard that, and it is why the law firms stick with it. I guess MS was just hoping they would switch the standard over, but apparently DoJ and MS aren't on the best terms.
But before the power goes out the noise floor is up into the roof and no one can practice with their radios. Tuning in HF signals is not like punching numbers into your car stereo, its an art and requires listening to a voice or CW signal often just a bar or two over the static. All emergency services train before the event happens, and radio is no different.
"being proved guilty beyond reasonable doubt" is all the rage in criminal court, but civil court only needs preponderance of the evidence. Remember how OJ was innocent and guilty? If they don't get you in one they would in the other. And either way you are broke from paying the lawyers.
UHF is not that old... most public service (save the boomtowns like LA and NYC) are still on VHF-lo/hi.
My county fire (in CA) does digital telemtry over a 159mhz (VHF) freq to track all the apparatuses around the county. With the low bandwidth allowed and general problems that come with VHF, it is a fight. A good thing about UHF is its relative line of sight path while still penetrating/bending around slight obstructions and keeping a good digital signal. Higher frequency signals coming from an omni-directional antenna would die out pretty quick if anything more than dust was in the way.
To get around really big obstructions lowband is the way to go... there is a reason CA Dept. of Forrestry and CA Highway Patrol still maintain their 30mhz radio nets around the state. But to go digital you need clean signals, so 800+mhz is the way to go there. What, you want both? Oh, UHF-T band then, 400mhz. Enjoy.
Is googledorks a real hacker movement or just some random key word any one with a high ranking web page can abuse?
It appears to be a buzzword that Johnny Long just kinda made up. I used Google to "hack" away and find his website: http://johnny.ihackstuff.com/
It appears his definition of googledorking (?) is not just finding private info, but just anything wacky/weird/different, private is just one of those things.
Slashdot Mirror
Your phone may have had "serivce" but did you try to make a call? Often on top of ridges the towers reach the phone but the phone can't reach back to the towers, and calls don't go through. People feel safe because their little signal bar is up all the way, and then they get in trouble and don't uderstand when the call to 911 just doesn't work.
Nick - Butte County, CA Search & Rescue
Yeah beacuse they make so much money from those navaid and air to air/ground comm transmissions. When the airlines control the device they can get it certified that it will not screw with the onboard navaids and comms. Have you ever tried to put anything on an aircraft? The cost triples because of all the certifications it must go through. I am surprised they would bother to get wifi certified, but I guess they think it will be profitable in the end.
You mean like this? It takes a minute, then the funny happens
Yeah really.. 10 second add for Toms Hardware and then 20 seconds of a plane with a blue background. There is not even any proof that there were computers onboard the aircraft from those videos.
I think the 85 runs faster because they hacked the 86 to have 96k of memory. This is just what I remember from reading about it years ago, so it might not be completely right, but the CPU they use in the 85/86 was only set up to use 32k of memory, so they have a mem controller guy in the 86 that swaps between three banks of ram and only allows the CPU to see one at a time. This I assume would require some loss in speed.
I laugh at all the people in classes that run with the 83 crowd. It seems everyone buys the 83 because its 15 bucks cheaper, but it has a crappy interface, worse looking screen, and the buttons are way to colorful. Also, all the "extra" programs in the TI-93Plus can be downloaded for the 86 from TI's website for free and added to your 86. In the comparison chart I saw nothing this new 84 did better than the 86 too...
And just like all the land in the US isn't suitable for housing, the entire RF spectrum isn't suitable for wide area communincations.
Or maybe the poster means MHz?
You found me out! I hope it didn't ruin everything too much for you.
I have been on the top of a pretty high mountain (Bald Mt, Butte County, CA) during Field Day 2003. The cell had full strength signals but we couldn't make a call. When my friend got his roaming bill it turns out he was hitting a tower about 150 miles away. The better gain antennas on the cell tower could hit us, but out little .3w phone couldn't get back to it.
You can do some cool stuff with low-frequency listening. I have heard radio skip that was transmitted on the east coast, bounced of a meteor storm, and came back down to my little antenna in California. I also like the pings and zooms from various atmospheric disturbances. You don't even need a storm to do it, but that just adds to the randomness.
I am guessing that is why the cop thought it was OK to share with his friend, and then the internet. I am in Search & Rescue and work closely with law enforcement and fire/rescue squads, and we see terrible things fairly often. We eventually get used to it, for better or worse. I have to admit, I am getting more used to it every time I have to recover someone's body... it still gets to me but way less than the first time.
And places that deal with such things as this have services avaiable to them, either in the form of personal support or round-the-clock 800 numbers you can call and talk about anything you have seen/done on the job. They are just way under-used.
I am not leaving my $450 pager with anyone. And this is not a normal pager, after sounding the alarm from hell it plays the dispatch to where I need to go. I am not going to rely on some usher to remember if it was a dynamic water rescue on a river or a technical water rescue from a strainer in a creek. Sometimes people actually need to be able to get a message anytime anywhere.
If you are in the US under our FCC laws you cannot legally transmit on a frequency that you do not have a license for, excluding a few itinerant business frequencies. The Part 15 'interference acceptance' that you speak of is for random emmissions and not targeted powerful transmissions.
Hah.
I carry a fire pager for Search & Rescue in my county. We are on call 24/7/365. There is no other agency in the county to perform search and rescue/recovery of lost poeple, so it is important to get my pages. This is also not a normal pager, it is louder than you can imagine and scares the shit out of anyone nearby when it goes off (including me). Think: high pitched rail road crossing alarm on your belt. The thing is, I have adapted ways to quite the pager when I am in public places to lessen its exposure. Doctors and other such people that are always on call also do this. When you are used to being paged at the worst possible times you get used to trying to minimize its effect on people around you. You only notice and get annoyed by the people that answer and talk loudly to their friends about the party they are going to later. Overall - Jamming signals is a bad idea. We should teach people to not be morons instead. But then I guess my Search & Rescue gig wouldn't be required anymore either.
Most people know very little about RF and how the bandplan sits in the US, or how radios even work.
There is a ton of stuff crammed into the 800mhz bands, including cellphones, pagers, public service, business. Sometimes they are sperated by mere khz. The 800mhz band is UGLY and the FCC should reorg it. But they are impotent.
Cellphones are also all over 1-2ghz. All a big mix of digital and analog. This thing "sends signals of 'no service' [... which] is better than messing with everything that uses the same frequencies cellphones do."
How is it going to send this no service signal wihtout using the cell phone frequencies? It has to transmit something, and that can be received by phones and anything else, even if those other things aren't tuned exactly to the cellphone bands. The issue comes with RF images. Just like music, RF has harmonics. You can pick up an 800mhz signal on a 400mhz receiver because it is hearing a harmonic (or image) of the other signal. If you know what it sounds like you can tell its only an image. Ever notice how you TV will sometimes pickup what is really on Ch's 2-10 up in the 70+ chs?
Also, I just can't let this one go... the article spouts this stupid "fact":
"As with jammers, the larger the detector, the greater its range."
That is about as stupid as saying the larger the computer the more powerful it is. While sometimes it is true, there is no rule. I have a very nice receiver that receives all mode from 1khz to 2ghz and it fits in my pocket. I also have a box the size of a toaster that only hears 144mhz-148mhz.
Articles without any real facts are lame. News organizations just make everyone stupid by not reporting facts, only crap.
Nick
KG6NMP
BCSO SCR
If there is an immediate threat to life and/or property it is an emergency. The system is supposed to be built to handle the average load of such emergencies, and PSAPs (Public Safety Answering Point) are supposed to take them in a very short ammount of time.
The problem is mainly when you call 911 from a cell phone you get a PSAP that is often not the one that covers the area you are currently in. In CA the CHP gets all cell 911 calls and then transfers them to the city/county fire/police once they figure out what the problem is. Then half the time the call is dropped and the other half they have to re-explain the problem to the new PSAP. Cell 911 is a big screw up so far, that is the main issue.
If this were fark there would be a photoshop picture of the CEO with a turd on his head. If thats the way you want to read your news, then go for it. I will take mine in green and white.
Have you ever USED WAAS? I have it turned on in my GPS and only get a WAAS signal if I am at about 4000' ASL or higher. And I use my GPS a lot. So far WAAS has not helped me all that much. (I also know the map & compass way too) Nick Butte County Search & Rescue
Did he learn from GRC?
Isn't it a standard in Justice that information be submitted in Word Perfect format? I thought somewhere I heard that, and it is why the law firms stick with it. I guess MS was just hoping they would switch the standard over, but apparently DoJ and MS aren't on the best terms.
But before the power goes out the noise floor is up into the roof and no one can practice with their radios. Tuning in HF signals is not like punching numbers into your car stereo, its an art and requires listening to a voice or CW signal often just a bar or two over the static. All emergency services train before the event happens, and radio is no different.
KG6NMP
Search & Rescue
Sheriff Communications Reserve
"being proved guilty beyond reasonable doubt" is all the rage in criminal court, but civil court only needs preponderance of the evidence. Remember how OJ was innocent and guilty? If they don't get you in one they would in the other. And either way you are broke from paying the lawyers.
UHF is not that old... most public service (save the boomtowns like LA and NYC) are still on VHF-lo/hi. My county fire (in CA) does digital telemtry over a 159mhz (VHF) freq to track all the apparatuses around the county. With the low bandwidth allowed and general problems that come with VHF, it is a fight. A good thing about UHF is its relative line of sight path while still penetrating/bending around slight obstructions and keeping a good digital signal. Higher frequency signals coming from an omni-directional antenna would die out pretty quick if anything more than dust was in the way. To get around really big obstructions lowband is the way to go... there is a reason CA Dept. of Forrestry and CA Highway Patrol still maintain their 30mhz radio nets around the state. But to go digital you need clean signals, so 800+mhz is the way to go there. What, you want both? Oh, UHF-T band then, 400mhz. Enjoy.
"Ike is a Pocket PC running [...] Bluetooth."
I hope Nokia didn't help them with the Bluetooth code.
Is googledorks a real hacker movement or just some random key word any one with a high ranking web page can abuse?
It appears to be a buzzword that Johnny Long just kinda made up. I used Google to "hack" away and find his website: http://johnny.ihackstuff.com/
It appears his definition of googledorking (?) is not just finding private info, but just anything wacky/weird/different, private is just one of those things.
Do we now call it g00g|3?