Newtec MDM6000 - Modulator Functionality and Interfaces

Newtec Proprietary
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Block Diagram MDM6000 Satellite Modem
9.5 Modulator
The modulator takes in the BBFs and applies the selected modulation mode.
The following parameters are set in this block:
• DVB-S2 or DVB-S2X or S2 Extensions;
• Transmit;
• Output Level;
• Output Frequency;
• Symbol Rate;
• ...
After modulation, the signal is made available on either the L-band or IF-output (depending on the
device configuration).
9.5.1 PRBS Generator
sThe modem provides a build-in PRBS (Pseudo-Random Binary Sequence) generator. Use the
generator to perform basic tests on the device and/or check the satellite link conditions.
The Test LED on the front panel and in the status bar of the GUI is green when the PRBS generator
is activated. For more information please refer to section: PRBSGenerator.onpage173
9.5.2 L-band TX or IF-band TX Interfaces
Depending on the ordered hardware and software, the following data output interfaces are available.
• An L-BAND Tx or IF-BAND Tx output is used for the transmission of RF signals.
The possible options are:
• L-BAND with switchable 10MHz output (950-150MHz) ordering nr. OU-00;
• IF-BAND (50-80MHz) ordering nr. OU-01;
• IF + L-band with switchable 10MHz output, ordering nr. OU-02.
It is possible to multiplex a 10MHz reference signal on the L-band interface for an outdoor BUC
(Block UP Converter);
• L-band with swithcable 10MHz output and 24/48V DC BUC power (on the L-band only), ordering
nr. OU-05;
• IF + L-band with switchable 10MHz output and 24/48V DC BUC power (on the L-band only),
ordering nr. OU-06.