Cisco GoQAM, Installation And Operation Manual

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Chapter 6 Operating the IF GoQAM
120 4004834 Rev D
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.
1 Press OPTIONS until the ITUB Interleave screen appears.
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.
3 Press ENTER to return to the default screen.
Adjusting the LCD Contrast
1 Press OPTIONS until the LCD Contrast screen appears.
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%.
3
Press
ENTER
to save the changes to NVRAM and return to the default screen.
Resetting the GoQAM
Follow these steps to reboot the GoQAM from the front panel.
1 Press OPTIONS until the Unit Reset screen appears.
2
Press the
Down Arrow
key. The GoQAM reboots.