Newtec Proprietary
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V1.0
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Feature Descriptions MDM6000 Satellite Modem
Parameter Description
ModCod This monitoring parameter displays the detected modulation and FEC used
for each of the DVB-S2 or S2-Extension streams in the received carrier.
Frame Counter This monitoring parameter displays the number of baseband frames that are
decoded by the demodulator board for each of the DVB-S2 or S2-Extension
streams streams in the received carrier.
Errored Frame
Counter
This monitoring parameter displays the number of uncorrected baseband
frames by the demodulator board for each of the DVB-S2 or S2-Extension
streams streams in the received carrier.
It indicates that the link margin is too low, that channel distortions are caused
by saturation or non-linearity caused the decoder to be unable to correctly
decode frames.
Cycle Slip
Counter
A cycle slip occurs when the symbol phase tracking loop fails.
Cycles slips gives the indication that system phase noise affect performance.
Phase discontinuities due to LO stability issues will also be reflected in cycle
slips.
Packet Error
Ratio
This parameter displays the packet error ratio of the received DVB-S2 or
S2-Extension streams.
Link Margin This monitoring parameter indicates how much the C/N or Es/No (including
the distortion) is above the decoding threshold.
It is a measure for the number of dBs of fading that is possible on the link
before the demodulator is not able to decode the received signal anymore.
Clipping will happen if the Es/N0 of the stream is too high, this is indicated
with the following symbol >.
C/N C/N or Carrier-to-Noise ratio.
This value (in dB) is a measure of the received carrier strength relative to the
strength of the received noise.
C/D C/D or Carrier-to-Distortion.
This value (in dB) is a measure for the distortion due to linear and non-linear
degradation that is present in each of the DVB-S2 or S2-Extension streams
in the received carrier.
Note: This parameter will only be shown when the transponder operation
mode is Single Carrier per Transponder.
C/ND C/ND stands for Carrier-to-noise + distortion.
The actual carrier to noise level by taking into account the effect of distortion
(C/D).
This value (in dB) is a measure of the received carrier strength relative to the
strength of the received noise with distortion added. This measurement
reflects the channel quality.
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