Re: 20. RFI is an unavoidable nuisances for wireless alarm systems..

[-pull@shoot]

On Sat, 28 May 2005 00:54:48 +0200, -pull@shoot wrote:

>
>I showed that RFI is an unavoidable nuisances for wireless alarm
>systems in several posts.
> I had a case who muzzled my wireless alarm system for
> more than 1 year before i discovered it by accident, no warning.
> By measuring i found the original source of RFI, my wireless
>headphone;
>
> Notice that there was no warning and that pro's confirm, 20+ years of
>theyre experience = no RFI warning.
>
>I also have explained how wireless alarm system radio data is send
>from sensors to the receiver and how it is jeopardized by collisions
>and interferences.
> I mentioned too that the frequencies used by wireless alarm systems
>are authority interference unprotected ones and of free use by anybody
>(you, car keys, light dimmers, headphones (the worst) and more).
>
>I DON'T SELL any alarm system but can't admit, like i was induced in
>error, that owners and future owners are mislead on the subject by low
>level mechanics who have not the most elementary clue on radio
>communication.
> The only reaction where insults.. but coming from low level hammer
>and cleaning cloth handlers, it will mot muzzle me.
>
>WHY do manufacturers not provide any specification on theyre wireless
>data communication loop; its the only thing who is different in
>comparisons to wired systems.
> Why do they not specify wireless receiver and transmitter data on
>theyre wireless goodies or is it junk?