Screen Service
SDT 200UB – SDT 500UB ARK-1 ATSC
Operations
July, 2009
v 1.0
Page 3 - 62
Box
Parameter /
Control
Description
Admitted Ranges / Values
I/A
Modulation ITU470
audio
Carrier Level 1
[dB]
Audio 2 carrier level setting.
•
MIN: -7
•
MAX: -22
•
Step: 0,1
I
Modulation ITU470
audio
Carrier Level 2
[dB]
Audio 1 carrier level setting.
Not used for NTSC
•
MIN: -7
•
MAX: -22
•
Step: 0,1
I
Modulation ITU470
audio
Emphasis
Audio emphasis value monitor.
•
50 us
•
75 us
•
no emphasis
I