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Comtech EF Data DM240XR User Manual

Page 135

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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


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