Operating instructions

User Interfaces DVB3030/DVB3030L Digital Video Broadcast Modulator
4-52 TM052 - Rev. 3.5
51. Modulation: {QPSK, BPSK} Standard Modulation is QPSK, BPSK is
optional.
52. Output Level: Enter the transmitter output power in 0.1 dBm
increments from -20 to 5 dBm.
53. Control Mode: {FT PANEL, TERMINAL, COMPUTER, ETHERNET}
54. RefSource: {INTERNAL, EXTERNAL} Select external or internal
reference clock.
55. ExtRef Freq.: Enter the external reference frequency in 8 KHz steps
from 1 MHz to 10 MHz.
56. Address: Enter the multidrop address from 32 to 255 for remote
monitoring and control.
57. Framing Mode: {NONE, 188, 204} Selects the Framing Mode.
58. Roll Off: {0.35, 0.20} Selects the desired Spectrum Roll Off.
59. Last Rate Control: {SYMBOL, DATA, AUTO} Selects rate precedence. See
Last Rate Control notes.
EVENT BUFFER MENU:
1. Main Menu: Displays Main Menu
2. Modulator: Displays Modulator Menu
11. Loss Terr Clock: {YES,NO} Allows masking of Loss of Terrestrial Clock
minor alarm.
12. Loss Terr Data: {YES,NO} Allows masking of Loss of Terrestrial Data
minor alarm.
13. Loss DVB Frame: {YES,NO} Allows masking of Loss of DVB Frame
Synchronization minor alarm.
14. Loss Frame Cnt: {YES,NO} Allows masking of Interleaver DVB Frame
Count Error minor alarm.
15. FIFO Error: {YES,NO} Allows masking of Reed-Solomon FIFO Error
minor.
16. Loss Int Clock: {YES,NO} Allows masking of Loss of Internal Clock
minor alarm.
31. Delete One Entry: Deletes one logged event from the event buffer.
41. Delete All Entries: Deletes all logged events from the event buffer.
After arriving at a programmable parameter that needs to be modified (Figure 4-2), depress the
‘Enter’ Key. The first space of the modifiable parameter highlights (blinks) and is ready for a new
parameter to be entered. After entering the new parameter using the numeric keypad, depress
the ‘Enter’ key to lock in the new parameter. If a change needs to be made, depress the ‘Clear’
Key and the display defaults back to the original parameter. Depress ‘Enter’ again and re-enter
Note: If at any time the user wishes to abort the changes being made, depress the ‘Clear’
Key to begin again.