Re: 44. Why are wireless alarm systems...

[Crash Gordon® <webmaster@xxxxxxxxxxxxxxxxxxxxx>]

exasperating isn't he?
it's like arguing with a 5 year old.

what's "rulled" mean anyway?



"Roger" <rumble@xxxxxxxxxxxxxxxxx> wrote in message =
news:qm9ve.3298$z61.92@xxxxxxxxxxxxxxxxxxxxxxx
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| > How can the 868MHz frequency be controlled, rulled yes but =
controlled?
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| To sell an 868MHz product in the EU it has to conform to current =
standards.=20
| Those standards are controlled. The company I work for activley looks =
at=20
| 868MHz products and tests them to see if they fall foul of the usage =
rules.=20
| If they do they are reported and the equipment is usually removed from =
the=20
| market place. In this way it is controlled. Rulled AND controlled.
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| > In what is it different from the 434MHz?
| Do the work yourself. Get a copy of REC70-30. You will see that there =
are no=20
| band occupancy rules. There are for 868MHz and this is one of the =
reasons=20
| why 868MHz is a much better band for security equipment than 434MHz.
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| > In what official document dit you read that?
| > My reference is www.ero.dk official info and yours?
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| The ONLY official documents - REC70-03 (Europe) and IR2030 (UK).
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| If you actually bother to study the documents you will see that bands =
set=20
| aside for security equipment cannot be used for other non compatible=20
| equipment. For example audio. And there are strict band occupancy =
rules that=20
| are tested for at approval stages of product design.
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| On the subject of wireless jamming detection, why don't you get a copy =
of=20
| EN50131 and check out the class 1-4 jamming detection requirements. =
Again,=20
| for security equipment to pass EN50131 at any class it has to provide=20
| defined jamming detection and reporting. All an installer has to do is =
buy=20
| an approved wireless system to get a reliable wireless system. You get =
what=20
| you pay for. If you buy a product that doesn't meet any standards then =
you=20
| get what you deserve.
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| Paul, why do you bother to 'pretend' that you know what you are =
talking=20
| about?. Be subjective not stupid.
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| So, just to repeat myself once again, you are wrong as usual Paul.
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