On Sat, 13 Jun 2009 12:46:57 -0700, against all advice, something
At first blush, this looks like a good idea. But, upon further
reflection one wonders what would happen if The Other Guy
suddenly lost his phone conversation.
Would he immediately start concentrating on his driving? Or
would he rather take his mind completely off of managing his
vehicle to stare stupidly at his suddenly non-functioning phone,
completely distracted from the more important job at hand?
I'm thinkin' the latter.
Don\'t worry about people stealing an idea. If it\'s original, you will
have to ram it down their throats.
You do know actively jamming cell phones is illegal, right? And could
subject you to Large Fines if the FCC tracks you down?
In this country, only people that can jam sort-of-legally are law
enforcement. Places that block cell phones do it with PASSIVE jamming-
essentially turning their buildings into giant Faraday cages using metal
mesh on the walls, under the wallpaper or whatever.
An new construction site burned to the ground a couple of years ago.
People were in the middle of closing on their new condo (Phase 1).
Fire trucks every where.
It looked like fraud at first, but was determined to be arson. A
wireless unit captured the video. It was on a server somewhere before
you could shake a stick. *
* Construction Site Security System and Monitoring System
When I built our AZ house, I wanted the same setup. The phone wires were in
a trench as they approached the house.
When it got next to the foundation, I ran the cable into a black 1" dia.
gas pipe" about 2 1/2 ft below grade. From there, the pipe came to the
surface, went up about 2 ft, then an elbow put it thru the garage wall. I
installed the phone "interface" inside the garage (facing "inside"). That
was Ok'd by the local Qwest phone installer.
Afterward, I put a 3" slab down against the outer wall (and around the "gas
pipe")and that became the resting place for one of my Carrier A/C units.
The end result was there was no sign of any phone line/connection outside
the house anywhere.
On Fri, 12 Jun 2009 11:27:16 -0500, The Daring Dufas
When some cars still had exterior hood releases, I installed an under
the hood handle that looked like it opened the hood but really just
tripped the car alarm. It looked great. I once found the alarm
runnng, and I think someone fell for it and tripped my device.
Nothing else was open or damaged and if a car had bumped me
accidentally, I don't think the mercury switches would have tripped.
The hood wasn't opened but then again, this wasn't even connected to
I had a customer, an old Black man who was
loosing batteries from under the hood of
his old land yacht. The burglars were taking
the batteries while he slept. I installed a
pin switch under the hood and a key switch
between a pair of headlights on one side of
the grill. The switch simply powered the car
horns whenever the hood was lifted. The old
fellow was awakened one night by the car horns,
crash of the hood and a loud scream. He never
lost another battery.
My father in law came by an old siren, the kind use by volunteer fire
departments to call people in. He wired this into his workshop alarm
system after getting broken into and none of the neighbors paid
attention to the alarm. He also wired saws, most of his power tools to
come on. I dont know of anyone trying to break in after taht but he
showed it to me by setting the thing off while I was in the shop.
Imagine lights going out, siren, in the shop, coming on and saw,
planers and shapers all around you starting up. No guards on anything.
I would have been laughing my ass off if it had happened to someone
else except I realized how close I came to sticking my hand in a
radial arm saw after he turned the lights on.
I did just that had the NID moved to 15 feet off ground, burglars were
breaking in after cutting phone wires. Ran my entry cable inside the
wall from high up too.
My elderly grandma ....... I was afraid someone woulds break in and
her die of fright
Overhead service or underground?
If underground, the following is easier:
Use a 6-conductor cable. Splice the 4 telephone wires to 4 of the conductors
in this new cable.
Connect the remaining pair to a fault alarm such that when they are cut, all
hell breaks loose: sirens go off, dog kennels open, giant floodlights shine,
I had a friend that did pretty much that. He was in the vending
machine business and often had large sums of cash at his business over
the weekend. A pair on the phone lines was wired into the alarm
system. This scared off would be burglars a couple of times. There was
no real worries about them getting any money as it was all in a big
walkin safe but in the past they did a lot of damage breaking in the
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