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User Interfaces
RFSWITCH
MONITOR
ALARMS
SYSTEM
TEST
4.2.2 Modulator Menu Options and Parameters
NETWORK SPEC:
FREQUENCY ( MHz):
POWER (dBm):
CARRIER:
MODULATION:
INNER FEC RATE:
DATA RATE (BPS):
SYMB RATE (SPS):
SPECTRUM:
ROLL OFF:
4-6
DM240-DVB High-Speed Digital Modulator
{PRIME, BACKUP}
{OFFLINE, ONLINE}
This menu is available only when RF Switch support
hardware is installed. The first status line indicates the
side of the RF switch that the DM240 is attached (prime
or backup). The second status line indicates if the output
of the DM240 is the active output of the RF switch
(online) or inactive (offline).
{DVB-S, DPC, DVB-S2-BS-NBC, DVB-S2-BS-BC}
Indicates the network specification to which the unit
configuration adheres.
IF Carrier Frequency:
Enter in 100 Hz increments within the following ranges:
50 MHz to 90 MHz
100 MHz to 180 MHz
950 MHz to 2050 MHz
Transmitter output power:
Enter in 0.1 dBm increments from:
-25.0 to 0.0 dBm
{ON, OFF}
Transmitter Power On/Off Control.
{BPSK, QPSK, 8PSK, 16QAM}
Modulation Type.
1/4, 1/3, 2/5/, 1/2, 3/5, 2/3, 3/4, 4/5, 5/6, 6/7, 7/8, 8/9,
9/10
Terrestrial Data Rate:
Enter in 1 Bps increments from 1,000,000 to
238,000,000 BPS.
Output Symbol Rate:
Enter in 1 SPS increments from 1,000,000 to 68,000,000
Sps.
{NORMAL, INVERTED}
{0.35, 0.25, 0.20}
Changes the Spectrum Roll Off
TM083 - Rev. 3.0
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