SNIP usual trash...
I want owners and future owners to have a mean to be able to compare
quality of the purshased/owned wireless alarm system subject the
wireless data loop.
The MAJOR and ONLY difference between "wired" and "wireless" system is
the data transfer means.
The remaining of the system is only mend to setup (on a abnormal
luxury way called programming by pro's) the imbedded conditions and
capabilities the system has to perform (timers, specific activations)
if they exist.
There the systems are different but that exist as well in both
systems.
Its unbelievable that a system, who is supposed to protect you and
your belongings, is not documented with the strict minimum of
information!
Its unbelievable that the basis data difference between "wired" and
"wireless" is not provided.
Where are the quality specifications of the receiver, major reception
item?
Secret performance data, not at all, for non initiated it may look
like that but in fact its more a mather of the quality of the system
who is broad to light.
ALL wireless receivers uses public available receiver circuits with
public available SAW filters.. Its interesting to know what is used so
that quality compressions can be made.
Frequency domain used is not secret neither, its governed by laws
generated by official instances, they MUST use public available shared
and unprotected frequencies of 434 and 868MHz. Why is it interesting
to know? The 433MHz is more crowded than the 868MHz at the "moment"
and less susceptible to be interfered.
Why is the transmitter power of the sensors not provided? The maximum
power is limited to a few milliWatt by law.. It can be the
manufacturers tendencies to lower the power in order to extend battery
live (also for the same reason burst length and repetition rate).
Lower sensor transmission power require side circuits like SS to
avoid more sensitive transmission path dips when conducting objects
are moved or slightly displaced (a car for instance) a few 1/10 of a
inch.
So if i cant convince low level electricians that manufacturer
specifications are required on the wireless data loops, well i don't
give up and are willing to explain it even more.
Paul