(57) Switching, regulation, amplification and/or attenuation system which may be adapted
to switches with several R.F. inlets, R.F. amplifiers and R.F. convertor selectors,
suitable to be employed for the realization of radio and television reception systems
or the like, whether fixed or mobile which comprises a power supply and control box
(1) containing a radio- frequency filter or injector; a block (20) consisting of a
standard unit for the selection, conversion and processing of the R.F. signals and/or
an R.F. switch with several R.F. inlets and identification, switching and regulation
circuits capable of identifying both the polarity and the particular value of the
voltages received, coming from control and power supply box (1) and consequently to
control the coupled control circuits of the R.F. switch and/or R.F. conversion and
processing unit; one or more blocks or modules (25) or (25'), whether inserted or
not in the same block (20), consisting of amplification, attenuation or tuning circuits
of the R.F. signals, combined with power supply and regulation circuits able to power,
at constant voltage, the above mentioned R.F. amplification, attenuation or tuning
circuits, and to carry out the regulation by utilizing the same voltages at different
polarities, transmitted, in turn, by control box (1).
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