First we have the high tech 'keyless' entry and start on cars
Then we have the low tech, basically a Slim Jim on a hotel door.
Then we have the low tech, basically a Slim Jim on a hotel door.
time to carry a 240VAC power supply... if someone reaches the door knob they'll get the notion of breaking in shocked out of their system.
If I carry my car fob, in my pocket, under my cell phone, the car won't find the fob either. This is the same for all four Honda cars.
If I carry my car fob, in my pocket, under my cell phone, the car won't find the fob either. This is the same for all four Honda cars.
Same thing with Mazdas: we were perplexed by our CX-30 locking/unlocking working intermittently until we worked out that our phones were too close to the key fob
Geoff
Geoff
After being a victim of thieves a few times in a row, i was thincking of putting an end to this by wiring some hv to the doorhandle of my house, but after finding out that this could actually get me into much more trouble do to possible charges of attemped murder and such, i dropped that idea.
Anyway, knowing that the justice system in my country seems to be more concerned about the well being of criminals than of the law obeying citizens there is little one can do. And no, insurance does not help either, in my case it turned out the insurance company was just specialiced into a more sophisticated kind of theft.
Once my car is out of warranty, good audio components go in. I have to keep the head unit as new ones are too tightly integrated into the car.
Yeah, packing an amp full of explosives would be fun. Make it look wired and in use, they rip it out and you have thieves that will never offend again. Use an impressive looking scrap amp.
Hi gorgon53,
It's that way here as well. Do something they can't prove. They break in and disappear - forever.
Yeah, packing an amp full of explosives would be fun. Make it look wired and in use, they rip it out and you have thieves that will never offend again. Use an impressive looking scrap amp.
Hi gorgon53,
It's that way here as well. Do something they can't prove. They break in and disappear - forever.
Eons ago, '84, I had a $2000 Datsun 510 with a $1500 audio system.
One night I forgot to lock it when I parked it in my car port.
Some idiot stole the head end.
...not realizing it that was worthless without the wired docking station and the factory would not support it because without a valid registered serial number they would not deal with it... ( it was a Concord worth about 600 bucks then)... I did call the factory the morning I found out about the theft... so that pretty much killed any support.
One night I forgot to lock it when I parked it in my car port.
Some idiot stole the head end.
...not realizing it that was worthless without the wired docking station and the factory would not support it because without a valid registered serial number they would not deal with it... ( it was a Concord worth about 600 bucks then)... I did call the factory the morning I found out about the theft... so that pretty much killed any support.
I don't have to use my fob for my Subaru to enter it. I just have to have it in my pocket, and touch the door handle to unlock it. I am not sure if it is using my body for low level communications, and if so does it radiate enough to be picked up more than a few meters away?
" I don't have to use my fob for my Subaru to enter it."
That's exactly what we're writing about here.
I don't think it charges YOUR body, it just provides a signal that enables the buttons to do something. If either my wife or I are carrying the fob near the car, then either one of us can open and start the engine.
I would imagine the class action lawyers would go bonkers if the device "charged your body" in any way.
That's exactly what we're writing about here.
I don't think it charges YOUR body, it just provides a signal that enables the buttons to do something. If either my wife or I are carrying the fob near the car, then either one of us can open and start the engine.
I would imagine the class action lawyers would go bonkers if the device "charged your body" in any way.
You guys do know where the Train Station is, right?
Well, you can always get a trunk monkey...
Some decades ago, when the price of copper went through the roof, Estonia (a former part of the USSR) became one of the biggest dealer in scrap copper.
Everything copper from outside my house, was stolen. First went the copper cladding from the chimney of my sauna (something made so beautiful money could not buy anymore), then, a few days later, the rainwater collecter and pipes where gone, then, a short time after i found a window smashed in and a sleeping blancket in the sauna. My house was a bit hidden in woods, so i put a sturdy chain into my driveway thincking no one would carry away stuff to a car that has to be parked 50m away and aside a narrow road.
Well, those thieves where well equipped, they cut the 12mm fastening bolts, took the hardened steel chain, drove to the house, broke down the frontdoor, made a mess of my house and went away with some stuff i could have given them for free if asked polytly (worth almost nothing, not even 1 % of the damage done). I was so pissed, i wanted to kill those crooks and wired one of those huge 1000uF caps i have to the place where i worked on and off, for more than an year building a new rf-heater, the garage, where most of my valuable stuff was. I charged 2 of them to 600V, a serial connected 1.2kV for the one trying to mess with the lock. (I ment to kill, those caps are huge, they vaporice shorts in big transmitting tubes, M16 bolt connections and not much of a selfdischarge).
But afterwards i regretted and drove back to dismantle this deathtrap.
May be i should not have, some weeks later it was winter allready, the police called me at 5am, asking if i have a house at a certain adress, i said yes, he told me firedepartment is there, but there is little they can do, the house has burned almost completely at their arrival.
It took me 2 weeks before i was able to go there...
This time, youngsters on mopeds had a good time drincking red bull and deliberatly burning down my sauna, my house and my garage and everything in it.,.just for fun...
Needless to say, what was not destroyed by heat got destroyed by corroding gases, water and ice, even the concret foundation.
When i finally went there to look at the disaster it was to late to safe my lathe or any other tools, everything iron was heavely corroded...
Years of work, my workplace and everything in it was gone...
But, the really final blow was when i found furniture thrown into the pool and the concrete walls that survided all decorated with tags...
Despite of all that, pulled myself together and piled up anything left of any value and put it under a blancket.
A few days later, this pile was gone too and i did not have to worry about anymore.
And yes i had Insurance, did they cover my losses or did they weasel out of theyr supposed committement?
No, instead of doing the rigth thing they took advantage of the shoked state i was in, totally unable to figth back
Years later, one of the insurance companys former enployee asked me if i felt cheated...
I told him...offcourse i feel cheated... getting not even a quarter of my fully insured loss...but at the time i was just numb...
He said yes i know, sorry about that...
Honest Finns? Not anymore!
Thieves everywhere...
Everything copper from outside my house, was stolen. First went the copper cladding from the chimney of my sauna (something made so beautiful money could not buy anymore), then, a few days later, the rainwater collecter and pipes where gone, then, a short time after i found a window smashed in and a sleeping blancket in the sauna. My house was a bit hidden in woods, so i put a sturdy chain into my driveway thincking no one would carry away stuff to a car that has to be parked 50m away and aside a narrow road.
Well, those thieves where well equipped, they cut the 12mm fastening bolts, took the hardened steel chain, drove to the house, broke down the frontdoor, made a mess of my house and went away with some stuff i could have given them for free if asked polytly (worth almost nothing, not even 1 % of the damage done). I was so pissed, i wanted to kill those crooks and wired one of those huge 1000uF caps i have to the place where i worked on and off, for more than an year building a new rf-heater, the garage, where most of my valuable stuff was. I charged 2 of them to 600V, a serial connected 1.2kV for the one trying to mess with the lock. (I ment to kill, those caps are huge, they vaporice shorts in big transmitting tubes, M16 bolt connections and not much of a selfdischarge).
But afterwards i regretted and drove back to dismantle this deathtrap.
May be i should not have, some weeks later it was winter allready, the police called me at 5am, asking if i have a house at a certain adress, i said yes, he told me firedepartment is there, but there is little they can do, the house has burned almost completely at their arrival.
It took me 2 weeks before i was able to go there...
This time, youngsters on mopeds had a good time drincking red bull and deliberatly burning down my sauna, my house and my garage and everything in it.,.just for fun...
Needless to say, what was not destroyed by heat got destroyed by corroding gases, water and ice, even the concret foundation.
When i finally went there to look at the disaster it was to late to safe my lathe or any other tools, everything iron was heavely corroded...
Years of work, my workplace and everything in it was gone...
But, the really final blow was when i found furniture thrown into the pool and the concrete walls that survided all decorated with tags...
Despite of all that, pulled myself together and piled up anything left of any value and put it under a blancket.
A few days later, this pile was gone too and i did not have to worry about anymore.
And yes i had Insurance, did they cover my losses or did they weasel out of theyr supposed committement?
No, instead of doing the rigth thing they took advantage of the shoked state i was in, totally unable to figth back
Years later, one of the insurance companys former enployee asked me if i felt cheated...
I told him...offcourse i feel cheated... getting not even a quarter of my fully insured loss...but at the time i was just numb...
He said yes i know, sorry about that...
Honest Finns? Not anymore!
Thieves everywhere...
Last edited:
Years ago a transformer manufacturer told me he'd had friends over for a listen to a reportedly very low distortion playback system he'd put together (using his purpose built iron of course). According to him, the output was so good they kept turning it up until, while still sounding great to their ears, it started to make them feel sick. The things we do for fun!
That got me wondering about an alarm that fires the car system sub full tilt at infrasonic. When you go out in the morning, the car might smell of stomach content but if the system is still there. . . . . .
That got me wondering about an alarm that fires the car system sub full tilt at infrasonic. When you go out in the morning, the car might smell of stomach content but if the system is still there. . . . . .
Some of you may enjoy Mark Rober's videos. He did some clever things to take down phone scammers and petty thieves (porch pirates and car smash & grab)...
Great for a laugh, and he really made an impact in his own way. Also... his squirrel videos are a riot... just sayin'.
Great for a laugh, and he really made an impact in his own way. Also... his squirrel videos are a riot... just sayin'.
I assume, most places have outlawed booby-traps and good luck with any sort of plea deal or leniency if someone gets hurt.. even those who deserve it.
Growing up, an elementary school kid disappeared in my neighborhood. Years later his body was discovered under the back porch of one of his neighbors. Some guy had rigged a crossbow to his back door for whatever reason.
I've had two clients over the years wanting help tying security gear to to booby traps. The first was the classic battery-high voltage coil to a door knob setup. Declined and forgotten about.
The second was a touch more disturbing. I'm not sure what his planned end-game was but the weirdo had a private ski lodge he rented out near Leadville CO. He wanted me to provide and connect a gas solenoid to an alarm output. He hoped to use "knockout gas' to render intruders unconscious. God only knows what his plans included and I didnt bother to ask.
That's probably the only time I've replied to a client with '**** No".
I also remember an incident where,after a number of break-ins from a roof top entry, dude wired line voltage to a piece of suspended, expanded steel grate above his ceiling. It worked, the would be thief was found dead in the trap. He probably spent the remainder of his life in prison.
OTOH, something that would spray liquified cat **** into a package thief's face would make me chuckle
Growing up, an elementary school kid disappeared in my neighborhood. Years later his body was discovered under the back porch of one of his neighbors. Some guy had rigged a crossbow to his back door for whatever reason.
I've had two clients over the years wanting help tying security gear to to booby traps. The first was the classic battery-high voltage coil to a door knob setup. Declined and forgotten about.
The second was a touch more disturbing. I'm not sure what his planned end-game was but the weirdo had a private ski lodge he rented out near Leadville CO. He wanted me to provide and connect a gas solenoid to an alarm output. He hoped to use "knockout gas' to render intruders unconscious. God only knows what his plans included and I didnt bother to ask.
That's probably the only time I've replied to a client with '**** No".
I also remember an incident where,after a number of break-ins from a roof top entry, dude wired line voltage to a piece of suspended, expanded steel grate above his ceiling. It worked, the would be thief was found dead in the trap. He probably spent the remainder of his life in prison.
OTOH, something that would spray liquified cat **** into a package thief's face would make me chuckle
Right, it needs your hand to interrupt the signal, that's all.
It's an induction loop, just like that square or circle on the road for traffic lights. Your hand interrupts that signal, allowing the fob to activate the door.
In most cases only the handle closest to the fob will be active, If she is on the other side of the car and you have the fob, chances are it won't work for her.
BTW, how many times have you seen a guy on a bike bouncing around thinking the traffic light sensors operate on weight. All he really needs is a piece of metal placed down near the edge of the square. His bike just doesn't have enough metal on it to lower the signal return strength and trip the light.
Last edited:
Infrasonic? Nah. Gotta make a statement with it. Get the biggest baddest 2” compression driver you can get your hands on, put it on a 20x40 horn, and let er rip with 3kHz at full rated RMS power.