Re: PIR frequency fransmitter question Wireless Alarms

[Jim <alarminex@xxxxxxx>]

On Dec 29, 5:35=A0pm, nick markowitz <nmarkow...@xxxxxxxxx> wrote:
> On Dec 29, 5:18=A0pm, Jim <alarmi...@xxxxxxx> wrote:
>
>
>
>
>
> > On Dec 29, 4:55=A0pm, mister accavanno <mraccavanno...@xxxxxxxxx> wrote=
:
>
> > > I understand that most units transmitting to the Main Control Unit ar=
e
> > > operating on the 315mhz, 433mhz, and the 868mhz frequencies. Is there
> > > a reference to find out which companies, or which particular sensor
> > > units are using a particular frequency? I know that certain car
> > > remotes interfere with certain sensor devices. Can I have some
> > > elaboration from some of the more Knowlegeable professionals on which
> > > companies use which frequencies.
>
> > I don't know about anyone else here, but..... even though the
> > information you're looking for might be "out there" and available
> > somewhere on the Internet, =A0I wouldn't be the one to acutually give i=
t
> > to just anyone who comes to this group and asks for it ..... or .....
> > for that matter, any other such information. You may or may not
> > understand why.
>
> > However, I'm sure if you keep asking, some numb-nuts, somewhere will
> > provide it to you.
>
> most systems have an anti jam warning any ways so it is not the worry
> it once was.
> very few things interfere if at all. with new technologies.-

Without wanting you to actually answer .... have you ever considered,
in detail, what the end results are when jamming occurs?

I don't remember if you were here when the infamous "Wireless Paul
from Belgium" plagued the group, but he did have some ..... (granted a
very few, but never-the-less) .... valid points.

Nick, If you'd like to discuss it in greater detail, you are welcome
to E-mail me. I'd like to hear your take on it since you've got more
RF experience.

I've been doing wireless alarms since the Transcience days, ( in the
70's, I think)  long before supervised wireless ..... and contrary to
the time that most say that they spend on a wireless job, due to my
experience, I'll spend as much or even more time installing a wireless
system as compared to a hardwired system. The planned and realized
results are: I don't have wireless alarm problems. I've still got some
Ademco 5700 series systems still functioning after all these years.
Customers attitudes are, if it's still working, why change it?