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Appendix A
Opcode: <2602h>
<4>
Frequency
Opcode: <2604h>
<4>
Data Rate
Opcode: <2606h>
<1>
Modulation Type 0 = QPSK, 1 = BPSK, 2 = 8PSK, 3 = 16QAM
Opcode: <2607h>
<1>
Inner FEC Rate
Opcode: <2609h>
<1>
Carrier Control
Opcode: <260Ah>
<1>
Carrier Type
Opcode: <260Bh>
<1>
Input Clock
Source
Opcode: <260Ch>
<1>
Input Clock
Polarity
Opcode: <260Fh>
<2>
Transmit Power
Level
Opcode: <2611h>
<1>
Spectrum
Opcode: <2616h>
<1>
External
Reference Source
A-20
Command a Modulator's Frequency
Binary Value, units Hz in 100Hz steps.
50000000Hz to 180000000Hz 70/140
950000000Hz to 2050000000Hz L-Band (This command will
cause the carrier to turn off).
Command a Modulator's Data Rate
Binary Value, 1 BPS steps (This command will cause the
carrier to turn off).
Command a Modulator's Modulation Type
Command a Modulator's Inner FEC Rate
1 = 1/2 Rate, 2 = 2/3 Rate, 3 = 3/4 Rate, 4 = 5/6 Rate, 5 = 7/8
Rate, 6 = 6/7 Rate, 7=4/5, 8 = 8/9 Rate, 9 = 9/10 Rate, 128 =
1/4 Rate, 129 = 1/3 Rate, 130 = 2/5 Rate, 131 = 3/5 Rate
(This command will cause the carrier to turn off.)
Command a Modulator's Carrier Control
0 = Off, 1 = On
Command a Modulator's Carrier Type
0 = Normal, 1 = CW, 2 = Dual, 3 = Offset, 4 = Pos FIR, 5 =
Neg FIR
Command a Modulator's Input Clock Source
0 = SCTE, 1 = SCT
Command a Modulator's Input Clock Polarity
0 = Normal, 1 = Inverted
Command a Modulator's Output Level
Signed Value. 0 to –250 (0.0 to –25.0 dBm)
Command a Modulator's Spectrum
0 = Inverted, 1 = Normal
Command a Modulator's External Reference Source
0 = Internal, 1 = External
DM240-DVB High-Speed Digital Modulator
TM083 – Rev. 3.0
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