CER
CCER+CER
CCER
Historical channel distribution allows you to turn distribution lines on or off on historical graphs. These distributions represent the 10th, 50th, and 90th percentiles or Average (50%) for selected frequencies on a graph.
Select if distribution lines are not visible. The computation of distribution data may occur after cable modem data or fiber node data is collected. This can cause the distribution graph to be slightly offset from the cable modem graph.NOTE: Each distribution is
performed on a per channel basis, and only the data relevant to the selected
frequency is displayed.
Historical channel distribution graphs can be created using the following parameters:
SC-QAM
- US FEC
- DS FEC
CER
CCER+CER
CCER
- US Noise
SNR
- DS Noise
SNR
MER
- US Power
Rx Power
Tx Power
Attenuation
- DS Power
Rx Power
- US Errors:
T3 Errors
T4 Errors
OFDM
- DS FEC:
CER
CER+CCER
CCER
Channel CER
Channel CER+CCER
Channel CCER
PLC CER
NCP CER
- DS Noise:
Mean MER
- DS Power:
Average Rx Power
OFDMA
- US FEC:
CER
CER+CCER
CCER
Channel CER
Channel CER+CCER
Channel CCER
- US Noise:
Mean MER
- US Power:
Average Rx Power
Tx Power
Attenuation
- US Errors:
T3 Errors OFDMA
T4 Errors OFDMA