Promax -12 User Manual page 8

The Datalogger function allows up to 55 loggers or measurements to be taken
and stored, each with carrier levels, C/N and V/A ratios, channel power or MER of
up to 140 channels. The measures obtained can be checked on the equipment or
transferred to a PC via the mini-USB connector.
In Scan operating mode, the PROMAX- indicates the level of all channels
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present on the band in a bar-graph display. The span and reference level are
user definable. A moving marker shows the exact level of each specific channel.
In Tilt operating mode, the screen shows, both graphically and numerically, the
difference in levels between any four previously defined pilot frequency channels,
in order to obtain a qualitative measurement on band equalisation.
As a Spectrum Analyser it provides the analysis of the entire band, with a span
defined by the user from 1 to 100 MHz. Furthermore, it is possible to alter the
reference level, and to detect and maintain the maximum and minimum values
for INGRESS measurements.
The HUM mode measures the frequency and the value (%) of the HUM, which is
a low frequency modulation that affects carriers and produces a distinctive hum
in both image and audio, especially in analogue signal. At the input, this function
also identifies automatically the voltage type (DC or AC), the voltage and the
frequency (only for AC).
In designing the PROMAX- , special attention was given to building a multi-
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purpose, accurate, yet easy-to-use instrument. A simple keyboard gives direct
access to the various operating modes and, once in them, any measurement
parameter can be easily changed using the rotary selector/button.
In addition, it has a mini-USB terminal for connecting to a computer for
producing reports on the measurements obtained.
The instrument is powered by means of an internal rechargeable battery.
All these functions have been brought together in one instrument weighing only
half a kilo. The ergonomic, sturdy design makes the PROMAX- 12 a working
tool without parallel.
January 2015
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