General; Description - Promax -4 Manual De Uso

USER'S MANUAL. PROMAX-4
CABLE TV ANALYSER

1 GENERAL

1.1

Description

The PROMAX-4 is an advanced model signal level meter designed for the
installation and maintenance of television signal reception and distribution systems. The
frequency range covered makes it an excellent instrument in FM radio, TV (MATV) and
cable TV (CATV) applications . It is particularly suitable in the latter case, since it
integrates all of the basic functions for the analysis of the signal in an easy-to-use,
accurate, sturdy instrument at a low cost.
The PROMAX-4 is the result of intensive work in research and the experience
of more than thirty years in the development of instrumentation for television. It enables
the measurement of the signal level with a high degree of accuracy; it incorporates a
series of functions for evaluating the picture quality; it includes the calculation of the
video-to-audio (V/A) ratio and of the carrier-to-noise (C/N) ratio in the channel (patented
method).
Its design, based on a control system with an intelligent microprocessor ,
provides the user with easy-to-use advanced features. The digital control system allows
the user to make most of the necessary operations automatic in order to optimize the
measurement process; for example, continuous frequency synthesis , correction of
linearity and flatness errors, the proper selection of attenuators and automatic cut-off if
the instrument remains inactive for a certain period of time. To enhance its features, it
allows a plan of up to 239 channels and is equipped with up to 64 program memories .
Its accuracy and reliability satisfy the requirements of the most demanding
users.
The signal level measured is shown numerically on an LCD display in absolute
values. It is also equipped with a computer connection which allows one to
personalize the configuration of the instrument.
The instrument is powered by an external rechargeable battery and it is safe to
use outdoors.
The implementation of all these functions in an instrument weighing only half a
kilo, makes the PROMAX-4 an incomparable work tool.
Every detail has been carefully studied to achieve the best possible balance
between its features and its operability. The result is an easy-to-handle piece of
equipment with advanced functions, which may be used even by non-specialized
personnel.
Novembre 1999
PROMAX-4
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