User's Manual

NewsCaster VT2 Operation
M17-0002-01A Rev 0.0 54 User Manual
INPUT MENU
The Input Menu is used only to set the type
of signal that is to be inputted to the unit.
• Composite
• SDI
• 70 MHz
• ASI
MODULATION MENU
The Modulation Menu allows the user to
change any of the associated analog or
digital parameters. The Modulation Menu is
broken down into two sections: Mode and
Parameters. (Refer to Figure 7.)
Mode
Mode allows the user to select the Digital
Mode of Operation (COFDM, DVB-S, and
VSB).
Parameters
The Parameters Sub-menu has Analog (FM)
parameters and Digital (COFDM, DVB-S,
and VSB) parameters.
FM PARAMETERS
The FM (analog) parameters are divided
into two sections: Audio and Video.
FM Audio Settings
Under the FM Audio sub-menu, there are
four channels to choose from. They are:
• SC1L (Audio 1 Left)
• SC1R (Audio 1 Right)
• SC2L (Audio 2 Left)
• SC2R (Audio 2 Right)
Each has an identical set of parameters.
1. Input - selects the type of audio input
source going to the VT2 (Line [analog
source], Tone [self-generated source],
AES/EBU [digital source], and Off.
2. Insertion - adjusts the input audio level
from –40 dB to –20 dB.
3. Gain - adjusts the audio output level from
–6 dB to +6 dB.
4. Freq - allows the user to select the FM
Audio Channel sub-carrier bandwidth.
FM Video Settings
Under the FM Video sub-menu, the operator
may change three parameter settings. These
are:
1. Inverse - which can set the video
waveform to Normal (in-phase) or Inverted
(180° out-of-phase).
2. Emphasis - allows the operator to switch
between Video Emphasis Mode or Video
Flat Mode. (In Video Emphasis Mode, the
lower video frequencies are rolled-off, while
high frequencies are amplified.)
3. Filter - sets the bandwidth of the video
filter. This is used to ensure that the audio
sub-carriers do not cause interference with
video signal when required. The choices
are: Bypass (filter off) or bandwidths of 3.9
MHz, 4.5 MHz, 4.75 MHz, or 5.6 MHz.