3 ms·

That would probably require a more advanced manipulation of the phone. When they trigger on ring, it's probably just using the power to the speaker or something

That would probably require a more advanced manipulation of the phone. When they trigger on ring, it's probably just using the power to the speaker or something built-in.

jacquesm 17y ago
cell phones have this neat little 'buzzer' in them to alert you during meetings. It's a little motor with an excentric weight attached to them, when the motor spins the weight will cause the phone to vibrate. This is almost tailor made to set stuff off by remote. Beta test using the ringer, when it's all good make it hot by switching your profile to 'silent'.
- sailormoon 17y ago
  Ah, good explanation! That certainly seems like the path of least resistance.
- stcredzero 17y ago
  cell phones have this neat little 'buzzer' in them to alert you during meetings. It's a little motor with an excentric weight attached to them, when the motor spins the weight will cause the phone to vibrate The favored method of IED detonation was just to have the attach a small spool of thread to the motor and have it pull a thread to activate something. Not sure what the favored method is now.
  - jacquesm 17y ago
    That was a pretty lucky guess then. I swear I never blew anything up, but I love to tinker with stuff. Hooking up a small relay to the motor outputs or using the motor directly seemed like the obvious thing to do.
kirubakaran 17y ago
Well, won't some easily accessible electrical parameter about the phone change on a call getting cut? Voltage across the battery / speaker output / resistance of mic / something ? They can make a call after setting up the IED, they can just wait for the call to get cut for the IED to explode.
- jacquesm 17y ago
  man that would suck if the call got broken early for some other reason... "This is cingular, your credit is 0, terminating call"
- sailormoon 17y ago
  What if the call gets cut off just because it's a bad line? What if the jammer takes effect 500m before the first vehicle? What if the phone runs out of battery, which it will within hours if it's active on a call? Not to mention that finding the IEDs would be much easier if they were radiating like a mobile phone. All just guesses of course.

That would probably require a more advanced manipulation of the phone. When they trigger on ring, it's probably just using the power to the speaker or something built-in.

jacquesm 17y ago

cell phones have this neat little 'buzzer' in them to alert you during meetings. It's a little motor with an excentric weight attached to them, when the motor spins the weight will cause the phone to vibrate. This is almost tailor made to set stuff off by remote. Beta test using the ringer, when it's all good make it hot by switching your profile to 'silent'.

sailormoon 17y ago
Ah, good explanation! That certainly seems like the path of least resistance.
stcredzero 17y ago
cell phones have this neat little 'buzzer' in them to alert you during meetings. It's a little motor with an excentric weight attached to them, when the motor spins the weight will cause the phone to vibrate The favored method of IED detonation was just to have the attach a small spool of thread to the motor and have it pull a thread to activate something. Not sure what the favored method is now.
- jacquesm 17y ago
  That was a pretty lucky guess then. I swear I never blew anything up, but I love to tinker with stuff. Hooking up a small relay to the motor outputs or using the motor directly seemed like the obvious thing to do.

kirubakaran 17y ago

Well, won't some easily accessible electrical parameter about the phone change on a call getting cut? Voltage across the battery / speaker output / resistance of mic / something ? They can make a call after setting up the IED, they can just wait for the call to get cut for the IED to explode.

jacquesm 17y ago
man that would suck if the call got broken early for some other reason... "This is cingular, your credit is 0, terminating call"
sailormoon 17y ago
What if the call gets cut off just because it's a bad line? What if the jammer takes effect 500m before the first vehicle? What if the phone runs out of battery, which it will within hours if it's active on a call? Not to mention that finding the IEDs would be much easier if they were radiating like a mobile phone. All just guesses of course.