Cisco GoQAM Installation And Operation Manual page 113

3 Press the Up or Down Arrow keys to scroll through the following available
modulation types:

DAVIC 16QAM

DAVIC 64QAM

DAVIC 256QAM

ITUB 64QAM

ITUB 256QAM
Press ENTER. The system saves the selected modulation type in NVRAM
4
memory and the default screen appears.
ITUB Interleave Screen
The ITUB Interleave screen displays the interleave depth factor for all ITU-B
modulation settings. The interleave depth factor specifies the spacing for the
forward error correction (FEC) code within the MPEG transport data. Interleaving
evenly disperses the data to transport it reliably over the cable channel.
Important: The recommended setting for this screen is 128,4. Only Cisco service
representatives should modify this setting.
Viewing the Interleave Values
To display the ITUB Interleave screen, follow these steps.
Press OPTIONS until the ITUB Interleave screen appears.
1
2 Press RF SEL to choose a Channel.
Important! You can edit this value from the front panel, but this value will be
overwritten by the value stored on the DNCS.
Press ENTER to return to the default screen.
3
Adjusting the LCD Contrast
Press OPTIONS until the LCD Contrast screen appears.
1
2 Press the Up or Down Arrow keys to decrease or increase the contrast from 0%
to 100% in 5% increments.
Note: The default contrast setting is 80%.
Press ENTER to save the changes to NVRAM and return to the default screen.
3
4004834 Rev D
Monitor Setup Options
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