--- Courtney Hook <chook@NISA.NET> wrote:
> That is a cheap alarm then, all the new ones have a
> "sensing" technology
> now, that samples the vibration and then ups the
> resistance a tiny amount to
> see if it will trigger again. It emits a warning beep if
> it's threshold is
> crossed, then it waits again. After the third time it
> does indeed go off,
> but even this feature is adjustable.
Alarms really are more for teh owners safety feelings than
to stop a thief. a good one can immobilize it in seconds.
Don't they all still have that mercury switch that when the
car is tilted up, like say on the back of a tow truck the
alarm shuts down? or has that changed?

> He may have it set
> too lightly, which
> is a common error in home installations. Everyone wants
> them to go off when
> someone taps the glass. Not a good idea if your neighbors
> are less than
> understanding.
Yeah! I find those people make us non gun people start
thinking of buying a shotgun!  ;-( ...just to shut the
alarm down!

> I still say a properly set up alarm like
> mine with a 30
> second immobilizer is the way to go. But hey, I love
> playing with stuff too,
> and once bought a 555 timer chip to build an alarm with a
> simple mercury
> rocker switch for my motorcycle. If anyone took the bike
> off the centre
> stand, it went off unless you disarmed it first. :-)
ooh! I like that one! ......but than they get scared and
dump it and run!  ;-(
Still I'd love to know how to make it! still hae the plans?

Motorcyclists need a pager alarm! Seriously I wanted to get
one for that reason myself. I want to be present when the
thief trys something. I've had my Duc vandalized twice, and
next time want to be there to deal with it.

Paul
'66 land-rover....sick
'95 land rover....sick, blown engine
'93 Ducati.....sick, blown engine bearings
'63 midget......no need to explain this one!  ;-)
'80 westy that works fine 'cept the damp headlights keep
dying at night...someting loose under the dash...

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