Posted: 8/17/2009 9:13:00 PM EDT
| How does this work? How accurate is the location in this situation? |
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One and a half years ago we had a medical incident at my house while I was gone. My Dad was visiting from out of state and dialed 911 on his cell phone. They asked where he was and he did not know our address and street name. They said they have begun cell phone triangulation but it will take some time (i don;t remember how long). IIRC They advised him to find a piece of mail w/ and address if he could. He did so quicker than the cell phone triangulation. |
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Quoted: Quoted: Quoted: cell tower only triangulation, within 20-100 yards gps enabled phones, within a few feet no shit within a few feet? wow. Yep, the mil has some really cool shit  'Precise' GPS has been enabled for everyone, for some time now... It's no longer .mil-only... |
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RE: the cell-phone triangulation and the GPS, that's about what I figured.
Someone pressed my paranoid button today: got into a faceoff with some roid-raged railroader, and an hour later, my cell phone starts ringing. No voice on the other end, just a few breaths and then they hang up. I am wondering if he could have got my name by looking up my license plate, then somehow started pinging my cell phone. "The horror..... the horror...." |
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Quoted: RE: the cell-phone triangulation and the GPS, that's about what I figured. Someone pressed my paranoid button today: got into a faceoff with some roid-raged railroader, and an hour later, my cell phone starts ringing. No voice on the other end, just a few breaths and then they hang up. I am wondering if he could have got my name by looking up my license plate, then somehow started pinging my cell phone. "The horror..... the horror...." Don't worry. It's harder than hell for LEO to get that done. |
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Quoted: Quoted: RE: the cell-phone triangulation and the GPS, that's about what I figured. Someone pressed my paranoid button today: got into a faceoff with some roid-raged railroader, and an hour later, my cell phone starts ringing. No voice on the other end, just a few breaths and then they hang up. I am wondering if he could have got my name by looking up my license plate, then somehow started pinging my cell phone. "The horror..... the horror...." Don't worry. It's harder than hell for LEO to get that done. In a life-threatening emergency situation, I could get the location in 10 minutes or less, with one or two phone calls, accurate to 50 yards or so. Otherwise, however long it takes for the phone company to get the subpoena and respond. |
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Quoted: After you talk to me, then I call AT&T/whoever...Quoted: Quoted: RE: the cell-phone triangulation and the GPS, that's about what I figured. Someone pressed my paranoid button today: got into a faceoff with some roid-raged railroader, and an hour later, my cell phone starts ringing. No voice on the other end, just a few breaths and then they hang up. I am wondering if he could have got my name by looking up my license plate, then somehow started pinging my cell phone. "The horror..... the horror...." Don't worry. It's harder than hell for LEO to get that done. In a life-threatening emergency situation, I could get the location in 10 minutes or less, with one or two phone calls, accurate to 50 yards or so. Otherwise, however long it takes for the phone company to get the subpoena and respond. I've done it once in 1.5 years. That was for someone threatening suicide who had called earlier, then called back on a non-911 line. |
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Quoted: Quoted: After you talk to me, then I call AT&T/whoever...Quoted: Quoted: RE: the cell-phone triangulation and the GPS, that's about what I figured. Someone pressed my paranoid button today: got into a faceoff with some roid-raged railroader, and an hour later, my cell phone starts ringing. No voice on the other end, just a few breaths and then they hang up. I am wondering if he could have got my name by looking up my license plate, then somehow started pinging my cell phone. "The horror..... the horror...." Don't worry. It's harder than hell for LEO to get that done. In a life-threatening emergency situation, I could get the location in 10 minutes or less, with one or two phone calls, accurate to 50 yards or so. Otherwise, however long it takes for the phone company to get the subpoena and respond. I've done it once in 1.5 years. That was for someone threatening suicide who had called earlier, then called back on a non-911 line. Over 9 years, I've probably done it 20-30 times. |
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Quoted: Quoted: Quoted: After you talk to me, then I call AT&T/whoever...Quoted: Quoted: RE: the cell-phone triangulation and the GPS, that's about what I figured. Someone pressed my paranoid button today: got into a faceoff with some roid-raged railroader, and an hour later, my cell phone starts ringing. No voice on the other end, just a few breaths and then they hang up. I am wondering if he could have got my name by looking up my license plate, then somehow started pinging my cell phone. "The horror..... the horror...." Don't worry. It's harder than hell for LEO to get that done. In a life-threatening emergency situation, I could get the location in 10 minutes or less, with one or two phone calls, accurate to 50 yards or so. Otherwise, however long it takes for the phone company to get the subpoena and respond. I've done it once in 1.5 years. That was for someone threatening suicide who had called earlier, then called back on a non-911 line. Over 9 years, I've probably done it 20-30 times. You probably have a larger call volume than a rural county with a population of 20k. I've never seen the paperwork for these requests...care to comment? |
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Quoted: Quoted: Quoted: Quoted: After you talk to me, then I call AT&T/whoever...Quoted: Quoted: RE: the cell-phone triangulation and the GPS, that's about what I figured. Someone pressed my paranoid button today: got into a faceoff with some roid-raged railroader, and an hour later, my cell phone starts ringing. No voice on the other end, just a few breaths and then they hang up. I am wondering if he could have got my name by looking up my license plate, then somehow started pinging my cell phone. "The horror..... the horror...." Don't worry. It's harder than hell for LEO to get that done. In a life-threatening emergency situation, I could get the location in 10 minutes or less, with one or two phone calls, accurate to 50 yards or so. Otherwise, however long it takes for the phone company to get the subpoena and respond. I've done it once in 1.5 years. That was for someone threatening suicide who had called earlier, then called back on a non-911 line. Over 9 years, I've probably done it 20-30 times. You probably have a larger call volume than a rural county with a population of 20k. I've never seen the paperwork for these requests...care to comment? Very basic: agency and contact info, case number, brief synopsis of the event providing the reason for the emergency ping, and the phone information, all on letterhead provided by the phone company. My previous agency handled a ~300K county, so yeah, we did have a bit more volume. |
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my understanding is that if there is too much volumn on one tower that the phone will override to the next tower. Would that throw off the location ? If it uses cell tower triangulation, yes. GPS, no. No, to both. Cell triangulation checks power on all receiving towers, then gives you a grid coordinate to check on. Takes three towers, two might get you a poor grid. |