General - Security Alarms

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3=> What causes RFI on Wireless Alarm System, collision problems, etc..	12 Feb 2004 23:55 GMT	1
RFI stands for Radio Frequency Interference, in other words, when two (or more) simultaneous transmissions appears on the same frequency and reaches the wireless alarm radio receiver this last get confused most of the time due to what is called interference.
=> 23 ADT Frequently Asked Questions on WIRELESS..	12 Feb 2004 23:55 GMT	1
Frequently Asked Questions >Q. Are wireless systems prone to false alarms or affected by errant > radio transmissions >A. NO ( the technology today is very sophisticated.)
=> 16 What does upset Pro's? Wireless unreliability.	12 Feb 2004 23:54 GMT	1
What does upset Pro's in this news group when i say that wireless alarm systems are unreliable during RFI ? Well look at theyre childish answers (instead of providing professional arguments) they try to ridicule, mono-bit/mono-lingual
=> 19 Test your wireless alarm equipment on interference sensitivty	12 Feb 2004 23:54 GMT	1
The continuing ignorance of "so called pro's" about Radio Frequency Interference (RFI) and that it exist and muzzle ALL wireless alarm system, YOURS TO (even the latest product/sold systems). Nothing in a reasonable priced, battery powered general public system
=> 12 Wireless, WH0 believe in it?	12 Feb 2004 23:53 GMT	1
WIRELESS alarm systems are unreliable, regardless the brand, during Radio Frequency Interferences (known as RFI in the radio communication world). The week point of wireless is the transmitter / receiver link who can be muzzled and you will not know it, its not detected.
=> 13 Manufacturers have NO SPEC. on the Wireless equipment, is that normal ?	12 Feb 2004 23:53 GMT	1
Manufacturers technical specification data allow you to know the quality of the different proposed equipment's and brands. Ask for them. How can professional keep telling you that the equipment they sell is
--> 14 Why that childish behavior of pro's subject wireless fails ?	12 Feb 2004 23:53 GMT	1
Why that childish behavior of some so called professionals when it boils down to Radio Frequency Interference (RFI) subject wireless fire/intruder detection systems fails? Pro's, make an inside look and recall the knowledge prerequisite
=> 15 What spec.'s are involved with wireless ?	12 Feb 2004 23:53 GMT	1
What spec.'s are involved with wireless? What spec.'s are required to understand the reliability of wireless alarm systems during RFI? Manufacturers just in case you don't know it, find here some minimum
=> 17 Are cell phones more reliable than wireless alarm systems?	12 Feb 2004 23:53 GMT	1
On Wed, 05 Feb 2003 22:49:16 GMT, "Rob" <Nobody@home.com> wrote: The following question was raised: >Paul, you say that wireless alarm systems are unreliable, > aren't cell phones wireless too?
=> 18 Wired / Wireless alarm systems?	12 Feb 2004 23:53 GMT	1
What is the basic difference between wired and wireless alarm systems? It boils down to the "connections link" between sensors and control panel of both systems, besides that sensor data connection link both systems are alike.
=> 20 Blind purshase of Wireless alarm systems	12 Feb 2004 23:53 GMT	1
Buyers: - do you always purchase an equipment without having a basic idea about theyre quality, performance on the major part of its design?
=> 22 What is involved in RFI?	12 Feb 2004 23:52 GMT	1
What isn't clear to the owners and future owners of wireless alarm systems about the Radio Frequency Interference (RFI) problem is that isn't the operational / setup features who are involved, it is the RECEIVER ONLY who capture ALL incoming wave on hiss frequency, by
=>25 Wireless dual frequency dual band systems from France	12 Feb 2004 23:52 GMT	1
I have been informed that, due to my postings, at least 2 manufacturers in france have changed theyre wireless alarm system receivers and transmitters to "dual frequency" on "dual band" wireless connections.
=> 26 avoid wireless alarm systems	12 Feb 2004 23:52 GMT	1
They are not reliable and are dead on warning when a transmitter operates in a condition who muzzle the wireless alarm system. This is easily done with Radio Transmitters operating: - ON the wireless frequency
=> 27 RFI is an unavoidable nuisances for wireless alarm systems..	12 Feb 2004 23:52 GMT	1
RFI is an unavoidable nuisances for wireless alarm systems.. 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 one