Newtec MDM6000 - Setting Demodulator Input Frequency

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Feature Descriptions MDM6000 Satellite Modem
14.6.3 Input Frequency
MDM6000 >> Demodulator >> Input Frequency
Set the input frequency of the demodulator. The input frequency must be in-line with the device
capabilities (L-band or IF band) and the system requirements.
Output Frequency
• L-band: 950MHz to 2150MHz;
• IF-band: 50MHz to 180MHz.
The device performs a check whether the entered frequency is within the allowed frequency range.
The IF input range, can only be used when the option IU-01 has been installed in the
device.
14.6.4 Symbol Rate
Define the symbol rate in Mbaud.
14.6.5 Acquisition Range
Define the amount of frequency uncertainty the demodulator will search over in order to find and
lock to an incoming carrier.
The range is between 0.05MHz to 7.5MHz.
14.6.6 Roll Off Factor and Occupied Bandwidth
MDM6000 >> Modulator >> Roll-Off
Select the appropriate roll off factor.
The possibilities are:
• 35%;
• 25%;
• 20%;
• 15% (Clean Channel Technology™);
• 10% (Clean Channel Technology™);
• 5% (Clean Channel Technology™).
The following figure compares 20% roll-off with 5% roll-off.