Re: Wireless Help - PLEASE!

[JoeRaisin <joeraisin@xxxxxxxxxxx>]

Jim wrote:
> 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.
>
Not sure about easier...
Those 5818 recessed door contacts can take longer to clean up after than
most wire runs... why does the wind always have to be blowing *IN* the
door while I'm drilling the hole...