General Description - R.V.R. Elettronica PTX-LCD User Manual

PTX-LCD

4. General Description

The PTX-LCD is a 19" rack-mountable frequency agile FM exciter. Its frequency
range spans from 87.5 to 108 MHz in 10 kHz steps, but other frequencies are
available on request.
The PTX-LCD comes in three versions, depending on its maximum output power:
30 W for the PTX30-LCD version, 60 W for the PTX60-LCD version and 100 W
for the PTX100-LCD version, on a 50 Ohm load. The output power can be set
anywhere between 0 and the nominal power
The PTX-LCD is available either with embedded stereo coder (option code “/S”)
or in MONO/MPX version. The MONO/MPX model can be used for monophonic
broadcasting or stereophonic, in conjunction with an external stereo coder.
The user interface of thexciter is constituted by a LCD display and a knob (encoder).
Using this interface, it’s possible to read all the working parameters and to adjust
the modifiable ones (e.g. power level or working frequency).
This exciter offers a number of connectors that can be used to integrate it in
complex systems: it is possible to acquire and control external units such as
amplifiers, changeover systems, coaxial relays, etc., and to network it with other
modulators.
The PTX-LCD is designed in a modular way: the different functionalities are
performed by modules that are then interconnected either directly (the male
connector of one module plugs in the the female connector of another one) or by
means of connectors-ended cables. This design allows easy servicing and
replacement of the single modules.
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