Newtec MDM6000 - Page 199

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Feature Descriptions MDM6000 Satellite Modem
Parameter Description
100 kHz -89 -94.8
1 MHz -102 -105.7
10 MHz -112 115.74
> 50 MHz -117.7
For the comparison the reference phase noise is integrated within the correct
bandwidth (the bandwidth used by the phase noise estimator). The phase
noise estimator is compared to the reference and the difference is expressed
in dB.
In practice the target value is about -4 to -14 dB better than the
worst case reference.
Non linearity
Indication
This value provides an indication of the non-linearity of the carrier in %.
Symbol Rate Displays the symbol rate measured on the input interface.
Carrier Offset Displays the frequency offset between the actual (tracked) frequency and the
set frequency.
Frame Counter Displays the amount of incoming frames.
Dummy Frame
Counter
Displays the amount of dummy frames that are transmitted over the satellite
link.
Errored Frame
Counter
Displays the amount of error frames.
Cycle Slip
Frame Counter
A cycle slip occurs when the symbol phase tracking loop fails.
Cycles slips indicate that system phase noise affect performance.
Phase discontinuities due to a local oscillator stability issues will also be
reflected in cycle slips.
Also check if the LNB is still working as expected.