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3.5.
Initialization - phase 3
Click on PHASE 3, to modify the setting of the modulators.
•
The MIE 8-00N, MIE 16-00N and MIE 32-00N can be changed between DVB-C and DVB-T in maintenance (see 4.2 on page
46).
•
The MIE 4-02N, MIE 8-02N, MIE 3-02N and MIE 6-02N modulate the output signals in DVB-T2.
3.5.1.
MIE 8-00N, MIE 16-00N and MIE 32-00N (DVB-C)
Configuration of the modulators
Select a modulator
Select a modulator from MODULATOR 1 to MODULATOR 8 on the left.
Make the required changes.
Click SAVE for each modulator.
Only then the changes will be saved, otherwise the changes will be lost.
Parameters:
Common Output level
The Common Output Level option include a general attenuation of all modulator outputs. The highest
output level is reached with a setting of 20 dB, the lowest level with a setting of 0 dB.
Output Channel
The modulators can be set to any output channel between S2 and CH 87. No output channel may be
selected more than once!
DVB-C Constellation:
With DVB-C modulation, you can choose between 32QAM, 64QAM, 128QAM and 256QAM. 256QAM
enables the highest data transmission rate, but it also requires the best network quality.
DVB-C Symbol Rate:
The DVB-C symbol rate can be freely set between 1000 and 7500. The standard value is 6900. Some
networks also work with 6875. When working with a bandwidth of 7 MHz, 6111 is customary.
Fine Level
The level fine adjustment attenuates the output level of each individual modulator output separately
from 0 to -3 dB.
In addition, each modulator output can be disabled (Off option).
Fine Tune
The Fine Tune adjustment of the output channel is performed in 0.5 MHz steps.
2023-06-15 | Technical improvements, changes in design, printing- and other errors reserved. | BA_MIE-N.pdf |
Page 37 of 70
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