INTRODUCTION
When a radio control system is used the transmitter sends a “signal” to the receiver that, if recognised
as valid, activates the output relays.
In view of the fact that a transmitter should activate only its own receiver and not that of your
neighbour, you have to codify the signal sent which means that each receiver will recognise its own
signal and not others that might be similar.
In traditional systems the code can be selected by means of a set of microswitches in the transmitter
(offering only a few thousand combinations) or it can be programmed directly during production (in
this case you have a few million different code numbers available); however, the code number is
fixed which means that each time it is transmitted the same signal is sent.
The fact that the code is sent by radio and that it is always the same does, unfortunately, offer the
possibility to people who are up to no good to receive (even at a distance) and record the signal
which they can then use as the “key” to open your door.
The “FLOR” system uses a principle that makes your radio control extremely safe.
A technique called “Rolling Code” is used that changes a part of the code each time it is transmitted
following a predefined sequence; the code is masked with appropriate mathematical functions so
there is no logical connection between two consecutive codes. The receiver is always synchronised
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