Adtec digital DTA-3050 (version 6.02.14) Manual - Manual (Page 42)

Control Type Options Function
Enable pull-down menu
Yes
No
switches inclusion of an NIT on and off
Rate text box
user-defined
determines how often an NIT will be included in
the stream
number entered is expressed in tenths of a
second
Network Name text box user-defined network's name that will be announced by the NIT
Network ID text box user-defined network's ID that will be announced by the NIT
Delivery Descriptor pull-down menu
Cable
Satellite
Terrestrial
type of network carrier
Frequency text box user-defined
frequency of the carrier
allows set-top boxes to dynamically determine
information about the carrier supporting the
network
Symbol Rate text box user-defined
symbol rate of the carrier
allows set-top boxes to dynamically determine
information about the carrier supporting the
network
Modulation Type text box user-defined
Polarization pull-down menu
linear horizontal
linear vertical
circular horizontal
circular vertical
orientation of the transmitter that will send the
encoded stream
East/West pull-down menu
East
West
modulation parameter; user-defined
Orbital Position text box user-defined orbital position of a receiving satellite
Center Frequency text box user-defined modulation parameter; user-defined
Bandwidth pull-down menu
6Mghz
7Mghz
8Mghz
bandwidth used; measured in megahertz
Constellation pull-down menu
QPSK
16-QAM
64-QAM
modulation parameter; user-defined
Hierarchy Information pull-down menu
Alpha = 1
Alpha = 2
Alpha = 4
Non-hierarchical
modulation parameter; user-defined
Code Rate HP Stream pull-down menu
1/2
2/3
3/4
5/6
7/8
modulation parameter; user-defined
Code Rate LP Stream pull-down menu
1/2
2/3
3/4
5/6
7/8
modulation parameter; user-defined
Guard Interval pull-down menu
1/32
1/16
1/8
1/4
enhances transmission integrity;
1/32 = low protection/high data transfer rate
1/4 = high protection/low data transfer rate
37 User Interface