General; Description - Promax US TV EXPLORER 2 User Manual

USER'S MANUAL. US TV EXPLORER II
US TV EXPLORER

1 GENERAL

1.1

Description

The television explorer US TV EXPLORER II represents an evolutionary step with
respect to the traditional field strength meters. The continuous PROMAX innovation
process in the sector of field strength meter yields an instrument that changes the way
to take and understand television signals measurements.
This equipment incorporates important advances in the functional aspects as
well as in the ergonomics to allow the installers to make their work with maximum
comfort and speed. Simultaneously the instrument is reliable for any possible problem
at the input signal, at the distribution components or the receiver equipment.
The US TV EXPLORER II has been designed to satisfy all the necessities of
measurement during the transition from the analogue transmissions to digital in
terrestrial, satellites and cable systems. Allowing measurements of analogue signals
as well as digital ones. When pressing the auto identification key, it searches and
identifies the signal under test. First it recognises whether the signal is an analogue
channel or a digital one. When the signal is digital (ATSC, DVB-S/S2, DSS), it analyses
for each modulation type 8-VSB / QAM
parameters: symbol rate, code rate, etc. and determines the value of the signals under
test.
The range of frequencies covered makes this instrument an excellent tool for FM
radio, terrestrial TV, mobile TV, satellite TV and cable TV (where the subband tuning
margin, from 5 to 45 MHz, enables the user to carry out tests on the return channel).
The US TV EXPLORER II adapts itself to the characteristic parameters of the
standard and to the correct automatic system in order to obtain in all the cases an
accurate measuring of the input signal level. It accepts the NTSC TV system and allows
the user to work directly with digital TV signals decoding them, so that the television
image may be viewed, and directly measuring the power, carrier/noise ratio (C/N), the
bit error rate (BER) and the modulation error ratio (MER), as well for ATSC (8-VSB) as
DVB-S (QPSK), DVB-S2 (8PSK), DSS (QPSK) and ITU-T J.83/B (QAM Annex-B)
signals. This instrument allows to obtain besides a graphical representation of the
Constellation Diagram for DVB-S/S2 (QPSK/8PSK) signals.
Being a multistandard instrument, it can be efficiently used in any country of the
world.
10/2007
II
/ QPSK / 8PSK all the associated
ANNEX-B
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