Sooner or later, when you try to make up your mind for selecting the best
Surveillance Camera for your own Home Security, the question will pop up. What
is the best method for transmitting the video signal from the Camera to the
Monitor?
Is it the wireless method whereby the radio signal originating at the emitter
is caught and decoded by the receiver before being forwarded?
Or is it the cable (one of a few types) that assures best reception and
faultless operation?
If you leave the choice to the salesperson, your answers to the questions
asked should hopefully point to the best solution. But why should one give up
one's right to study the matter and make one's own decision?
Unfortunately, as most often happens with technological solutions, the answer
is not absolute and clear cut. Also â€the best is not a useful qualifier, in that
it should be restricted by the condition with reference to what?
In effect one should decide if the best is meant to be price, or the ease
of assembling, or the fidelity of transmission, or avoidance of interference,
and so on.
One has to evaluate advantages and limitations of each method, and try to see
which one, all things considered, is the most appropriate for the specific case
in question.
The advantages of the wireless solution are essentially the ease of set up
and of mobility, in that changing location is straightforward, and the fact that
the receiver and recorder can be hidden away so as not to be tampered with by
somebody willing to destroy the proofs.
Limitations are probably the distance that cannot be exceeded for best
reception and the possible interference from other appliances that can degrade
the quality of reception.
The advantages of coaxial cable transmission, one of the most used wired
methods, are longer distance reachable, higher fidelity of transmission and less
disturbing interference.
Limitations are the necessity to lay down the cables in the house, making
holes in walls to pass from one room to the other and the need to fasten the
cable to the wall with proper clips every short distance.
Another disturbing limitation may be the fact that if a new layout is needed,
most of the set up work has to be repeated. A cable can be easily interrupted by
a hostile intruder having interest in damaging the security installation. And
the danger exists that, by following the cable, and intruder might reach the
recorder and tamper with the records.
If these are the choices, which one is better? Again, it depends on the
circumstances and on personal preference. These are certain differences and
implications, but one could look deeper in the matter by evaluating the chances
of possible events. Then the selection should be easier. Would you agree?
