Comtech EF Data DM240XR User Manual
Page 135
DM240XR High-Speed Digital Modulator
Remote Operations
MN-DM240XR– Revision 13
9–21
Opcode: <2602h>
Command a Modulator's Frequency
<4>
Frequency
Binary Value, units Hz in 1Hz steps.
50000000Hz to 180000000Hz 70/140
950000000Hz to 2050000000Hz L-Band (This command will
cause the carrier to turn off).
Opcode: <2604h>
Command a Modulator's Data Rate
<4>
Data Rate
Binary Value, 1 BPS steps (This command will cause the
carrier to turn off).
Opcode: <2606h>
Command a Modulator's Modulation Type
<1>
Modulation
Type
0 = QPSK, 1 = BPSK, 2 = 8PSK, 3 = 16QAM, 9 = 16APSK,
10 = 32APSK
Opcode: <2607h>
Command a Modulator's Inner FEC Rate
<1>
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.)
Opcode: <2609h>
Command a Modulator's Carrier Control
<1>
Carrier Control
0 = Off, 1 = On
Opcode: <260Ah>
Command a Modulator's Carrier Test
<1>
Carrier Test
0 = Normal, 1 = CW, 2 = Dual, 3 = Offset, 4 = Pos FIR, 5 =
Neg FIR
Opcode: <260Bh>
Command a Modulator's Input Clock Source
<1>
Input Clock
Source
0 = SCTE, 1 = SCT
Opcode: <260Ch>
Command a Modulator's Input Clock Polarity
<1>
Input Clock
Polarity
0 = Normal, 1 = Inverted
Opcode: <260Fh>
Command a Modulator's Output Level
<2>
Transmit
Power Level
Signed Value. 0 to –250 (0.0 to –25.0 dBm)
Opcode: <2611h>
Command a Modulator's Spectrum
<1>
Spectrum
0 = Inverted, 1 = Normal