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QUICK CONFIGURATION GUIDE. DT-202
MODULATOR Options
4.3
The configuration options of the MODULATOR are:
Frequency (KHz).
-
Allow you to edit the frequency of the output signal. It is a numeric
field.
Attenuation.
-
Allow you to adjust the power level of the output signal (in dB). It is
a numeric field.
FFT Mode.
-
It is the transmitting mode of the signal. Select among available
values (2 K or 8 K).
Guard Interval.
-
It is the security margin used to ensure that distinct transmissions
do not interfere with one another. Select among available values
(1/4, 1/8, 1/16, 1/32).
Constellation.
-
Constellation used to modulate and transmit the signal. Select
among available values (16 QAM, 64 QAM, QPSK).
Code Rate.
-
Select the suitable code rate. Select among available values
(1/2, 2/3, 3/4, 5/6, 7/8).
Channel BW.
-
It is the bandwidth of the channel. Select among available values
(7 and 8 MHz).
PID Filtering.
-
It has two options:
Mode.
-
When is ON, it filters or removes the services contained in the
PID list. When is OFF, it cancels the filtering of the services
that are on the PID list. All services become selected.
PID List.
-
It shows a list with all services filtered, that is, all services that
will not be transmitted. To filter services, use the option at the
DECODER MPEG-2.
11/2011
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