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Block Diagram MDM6000 Satellite Modem
9.6 Demodulator
The demodulator receives the RF signal on L-BAND Rx A or L-BAND Rx B.
(Optionally IF + L-band Rx interfaces are available, ordering nr. IU-01).
Also make sure that the Symbol Rate and Roll-off Factor matches with the values set on the
modulator site. When these values do not match, the demodulator cannot lock, in this case an alarm
Rx-LOCK is raised.
The demodulator is capable of receiving DVB-S2 (by default) and DVB-S2X or S2 Extensions (when
the hardware/software ordering nr. DH-02 is installed on the device).
The active Rx interface provides DC power and frequency band selection signals compatible with
most professional and commercial LNBs.
After demodulation the baseband frames are forwarded towards the "BBF over IP out" block or to
the "Decapsulation" block.
9.6.1 L-band RX A / L-band RX B Input Interfaces
The carrier arriving from the satellite is taken in on one of the two RF interfaces (Demod L-BAND Rx
A/ L-BAND Rx B).
Depending on the requested configuration a Dual L-Band or IF+L-Band is available.
Option IU-01 provides the possibility to have an IF+L-Band demodulator input
interface whereby the L-Band Rx B is replaced by an IF Rx connector.
Note that option IU-01 is mutually exclusive with options OU-05 and OU-06 (DC BUC
power supply).
Contact your sales representative for details (sales@newtec.eu)
The input selection is done in the relevant demodulator functional block of the MDM6000.
MDM6000 >> Demodulator >> Input Selection