Re: Wireless Help - PLEASE!

["Crash Gordon" <webmaster@xxxxxxxxxxxxxxxxxxxxx>]

I've been doing wireless for a long time, with few problems...usually
homeowner caused.

One was when they mirrored an entire wall that surrounded the closet the
reciever was in. Another one was the homeowner stacked a zillion old paint
cans on the shelf around the alarm panel and reciever...just stuff like
that. Simple fixes.




"Jim" <alarminex@xxxxxxx> wrote in message
news:1128361683.597070.244260@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
|
| Crash Gordon wrote:
| > Welp if it was a weak signal, then minor interference would be a problem
eh?
| > Not enough headroom.
| >
| >
| That's not usually how it works.
|
| Since the system was working, and now it's not, and it's only a couple
| of transmitters and they are the furthest away ......it's more likly
| due to something that's changed in the premises.  The receiver has been
| blocked. They moved a stove, refrigerator, are storing clothes iron in
| the closet where the receiver is located, added metal pots hanging in
| the kitchen over the center consol stove, added aluminum backed
| insulation in the new addition, had central air conditioning installed,
| are now parking the new car in the garage, and/or ....... the installer
| didn't do his job of checking signal strength. I've also noticed that
| some transmitters, over a long time period, will decline in their
| signal output. I've seen some transmitters reduce signal output by
| three points over a period of 5 to 7 years. I record the signal
| strength at the time of installation. It's real handy for trouble
| shooting "quirky" problems.
|
| I'm sometimes called in by other alarm companies to do their wireless
| trouble shooting, I've never had one system that had an interference
| problem.
|
| The big secret to doing excellent wireless systems is to make sure
| signal strength is well above factory recomended minimums and use two
| or more receivers. Problem is, if everyone did that, it would destroy
| the myth that wireless alarm systems can be installed quicker than
| wired systems. Easier, yes, but not necessarily quicker. If it's done
| right, problems like this hardly ever happen.
|
|