Comtech EF Data DM240XR - Manual (Page 29)

DM240XR High-Speed Digital Modulator User Interfaces
MN-DM240XR– Revision 13 4–7
configure this menu when user desires to display the satellite
uplink RF frequency on the RF Menu.
LO FREQ ( MHz): {4000 MHz to 50000 MHz or 0 to bypass}
Enter the LO frequency of the BUC to correctly display the RF
satellite output frequency in the RF Menu. The LO Frequency
must be 0 if 70/140 MHz is the desired output frequency.
LO MIX: {HIGH SIDE, LOW SIDE}
Enter location of the LO in reference to the uplink frequency
POWER (dBm):
Transmitter output power:
Enter in 0.1 dBm increments from: -25.0 to 0.0 dBm
CARRIER:
{ON, OFF}
Transmitter Power On/Off Control.
MODULATION:
{BPSK, QPSK, 8PSK, 16QAM} DVB-S
{QPSK, 8PSK, 16APSK, 32APSK} DVB-S2
Modulation Type.
INNER FEC RATE:
DVB-S QPSK 1/2, 2/3, 3/4, 5/6, 7/8
DVB-S BPSK 1/2, 2/3, 3/4, 5/6, 7/8
DVB-S 8PSK 2/3, 5/6, 8/9
DVB-S 16QAM 3/4, 7/8
DVB-S2 QPSK 1/4, 1/3, 1/2, 2/5, 3/5, 2/3, 3/4,
4/5, 5/6, 8/9, 9/10
DVB-S2 8PSK 3/5, 2/3, 3/4, 5/6, 8/9, 9/10
DVB-S2 16APSK 2/3, 3/4, 4/5, 5/6, 8/9, 9/10
DVB-S2 32APSK 3/4, 4/5, 5/6, 8/9, 9/10
SAT FRAMING
{DVB-S2-NORMAL, DVB-S2-SHORT}
This only appears when DVB-S2-CCM network spec is active.
DATA RATE (BPS):
Terrestrial Data Rate:
Enter in 1 Bps increments from 1,000,000 to 238,000,000 BPS.
SYMB RATE (SPS):
Output Symbol Rate:
Enter in 1 SPS increments from 1,000,000 to 68,000,000 Sps.
SPECTRUM:
{NORMAL, INVERTED}
ROLL OFF:
{0.35, 0.25, 0.20}
Changes the Spectrum Roll Off
PILOT SYMBOLS:
{ON, OFF}
Physical layer pilot symbols. Displayed only in DVB-S2 related
network spec.